DAC104S085 TI | Alldatasheet
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Technical content
2.5k 100k 2.5k 100k 2.5k 100k 2.5k 100k
10 BIT DAC
Copyright © 2016, Texas Instruments Incorporated Product Folder Sample & Buy T echnical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. DAC104S085,DAC104S085-Q1 SNAS362G –MAY 2006–REVISED APRIL 2016 DAC104S085-xx10-BitMicroPowerQUADDigital-to-AnalogConverterWithRail-to-Rail Output
1 Features
1• Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results: – Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
- Ensured Monotonicity
- Low Power Operation
- Rail-to-Rail Voltage Output
- Power-On Reset to 0 V
- Simultaneous Output Updating
- Wide Power Supply Range (2.7 V to 5.5 V)
- Key Specifications – Resolution: 10 bits – INL: ±2 LSB (Maximum) – DNL: +0.35 / −0.25 LSB (Maximum) – Settling Time: 6 μs (Maximum) – Zero Code Error: 15 mV (Maximum) – Full-Scale Error: −0.75% FS (Maximum) – Typical Supply Power – Normal Mode: 1.1 mW (3 V), 2.5 mW (5 V) – Power Down: 0.3 μW (3 V), 0.8 μW (5 V)
2 Applications
- Battery-Powered Instruments
- Digital Gain and Offset Adjustment
- Programmable Voltage and Current Sources
- Programmable Attenuators
- Automotives
3 Description
The DAC104S085 device is a full-featured, general- purpose QUAD 10-bit voltage-output digital-to-analog converter (DAC) that can operate from a single 2.7-V to 5.5-V supply and consumes 1.1 mW at 3 V and 2.5 mW at 5 V. The DAC104S085 is packaged in 10- pin SON and VSSOP packages. The 10-pin SON package makes the DAC104S085 the smallest QUAD DAC in its class. The on-chip output amplifier allows rail-to-rail output swing and the three wire serial interface operates at clock rates up to 40 MHz over the entire supply voltage range. Competitive devices are limited to 25-MHz clock rates at supply voltages in the 2.7-V to 3.6-V range. The serial interface is compatible with standard SPI, QSPI, MICROWIRE, and DSP interfaces. The reference for the DAC104S085 serves all four channels and can vary in voltage between 1 V and VA, providing the widest possible output dynamic range. The DAC104S085 has a 16-bit input shift register that controls the outputs to be updated, the mode of operation, the power-down condition, and the binary input data. All four outputs can be updated simultaneously or individually depending on the setting of the two mode of operation bits. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) DAC104S085-xx VSSOP (10) 3.00 mm × 3.00 mm WSON (10) 3.00 mm × 3.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Block Diagram
DAC104S085,DAC104S085-Q1 SNAS362G –MAY 2006–REVISED APRIL 2016 www.ti.com Product Folder Links: DAC104S085 DAC104S085-Q1 Submit Documentation Feedback Copyright © 2006–2016, Texas Instruments Incorporated Table of Contents
13 Mechanical, Packaging, and Orderable
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision F (March 2013) to Revision G Page
- Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Changes from Revision E (March 2013) to Revision F Page
DAC104S085,DAC104S085-Q1 www.ti.com SNAS362G –MAY 2006–REVISED APRIL 2016 Product Folder Links: DAC104S085 DAC104S085-Q1 Submit Documentation FeedbackCopyright © 2006–2016, Texas Instruments Incorporated
5 Description (continued)
A power-on reset circuit ensures that the DAC output powers up to zero volts and remains there until there is a valid write to the device. A power-down feature reduces power consumption to less than a microWatt with three different termination options. The low power consumption and small packages of the DAC104S085 make it an excellent choice for use in battery-operated equipment. The DAC104S085 is one of a family of pin-compatible DACs, including the 8-bit DAC084S085 and the 12-bit DAC124S085. The DAC104S085 operates over the extended industrial temperature range of −40°C to +125°C.
6 Pin Configuration and Functions
NO. NAME 1 VA Supply Power supply input. Must be decoupled to GND. 2 VOUTA Analog Output Channel A Analog Output Voltage. 3 VOUTB Analog Output Channel B Analog Output Voltage. 4 VOUTC Analog Output Channel C Analog Output Voltage. 5 VOUTD Analog Output Channel D Analog Output Voltage. 6 GND Ground Ground reference for all on-chip circuitry. 7 VREFIN Analog Input Unbuffered reference voltage shared by all channels. Must be decoupled to GND. 8 DIN Digital Input Serial Data Input. Data is clocked into the 16-bit shift register on the falling edges of SCLK after the fall of SYNC.
9 SYNC Digital Input
Frame synchronization input for the data input. When this pin goes low, it enables the input shift register and data is transferred on the falling edges of SCLK. The DAC is updated on the 16th clock cycle unless SYNC is brought high before the 16th clock, in which case the rising edge of SYNC acts as an interrupt and the write sequence is ignored by the DAC. 10 SCLK Digital Input Serial Clock Input. Data is clocked into the input shift register on the falling edges of this pin.
11 PAD
(SON only) Ground Exposed die attach pad can be connected to ground or left floating. Soldering the pad to the PCB offers optimal thermal performance and enhances package self-alignment during reflow.
DAC104S085,DAC104S085-Q1 SNAS362G –MAY 2006–REVISED APRIL 2016 www.ti.com Product Folder Links: DAC104S085 DAC104S085-Q1 Submit Documentation Feedback Copyright © 2006–2016, Texas Instruments Incorporated (1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) All voltages are measured with respect to GND = 0 V, unless otherwise specified. (3) If Military/Aerospace specified devices are required, please contact the TI Sales Office/Distributors for availability and specifications. (4) When the input voltage at any pin exceeds 5.5 V or is less than GND, the current at that pin should be limited to 10 mA. The 20 mA maximum package input current rating limits the number of pins that can safely exceed the power supplies with an input current of 10 mA to two. (5) The absolute maximum junction temperature (TJmax) for this device is 150°C. The maximum allowable power dissipation is dictated by TJmax, the junction-to-ambient thermal resistance (θJA), and the ambient temperature (TA), and can be calculated using the formula PDMAX = (TJmax − TA) / θJA. The values for maximum power dissipation is reached only when the device is operated in a severe fault condition (that is, when input or output pins are driven beyond the operating ratings, or the power supply polarity is reversed).
7 Specifications
7.1 Absolute Maximum Ratings (1)(2)(3)
Supply voltage, VA 6.5 V Voltage on any input pin −0.3 6.5 V Input current at any pin(4) 10 mA Package input current(4) 20 mA Power consumption at TA = 25°C See (5) Junction temperature 150 °C Storage temperature, Tstg −65 150 °C (1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. (2) Human body model is 100-pF capacitor discharged through a 1.5-kΩ resistor. Machine model is 220 pF discharged through 0 Ω.
7.2 ESD Ratings – DAC104S085
V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1)(2) ±2500 V Machine model (MM) ±250 (1) AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification.
7.3 ESD Ratings – DAC104S085-Q1
V(ESD) Electrostatic discharge Human-body model (HBM), per AEC Q100-002(1) ±2500 V (1) All voltages are measured with respect to GND = 0 V, unless otherwise specified. (2) The inputs are protected as shown. Input voltage magnitudes up to 5.5 V, regardless of VA, does not cause errors in the conversion result. For example, if VA is 3 V, the digital input pins can be driven with a 5-V logic device.
7.4 Recommended Operating Conditions(1)
Operating temperature –40 125 °C Supply voltage, VA 2.7 5.5 V Reference voltage, VREFIN 1 VA V Digital input voltage(2) 0 5.5 V Output load 0 1500 pF
DAC104S085,DAC104S085-Q1 www.ti.com SNAS362G –MAY 2006–REVISED APRIL 2016 Product Folder Links: DAC104S085 DAC104S085-Q1 Submit Documentation FeedbackCopyright © 2006–2016, Texas Instruments Incorporated Recommended Operating Conditions(1) (continued) MIN MAX UNIT SCLK frequency 40 MHz (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953. (2) Soldering process must comply with Reflow Temperature Profile specifications. See the Absolute Maximum Ratings for Soldering application report, SNOA549, for more information. (3) Reflow temperature profiles are different for lead-free packages.
7.5 Thermal Information
THERMAL METRIC(1)(2)(3) DAC104S085-xx UNITDGS (VSSOP) DSC (SON)
10 PINS 10 PINS
RθJA Junction-to-ambient thermal resistance 159 48.9 °C/W RθJC(top) Junction-to-case (top) thermal resistance 53.3 40.7 °C/W RθJB Junction-to-board thermal resistance 78.9 23.7 °C/W ψJT Junction-to-top characterization parameter 4.8 0.4 °C/W ψJB Junction-to-board characterization parameter 77.6 23.8 °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance N/A 4.7 °C/W (1) Typical figures are at TJ = 25°C, and represent most likely parametric norms. Test limits are specified to TI's AOQL (Average Outgoing Quality Level). (2) This parameter is ensured by design and/or characterization and is not tested in production.
7.6 Electrical Characteristics
The following specifications apply for VA = 2.7 V to 5.5 V, VREFIN = VA, CL = 200 pF to GND, fSCLK = 30 MHz, input code range from 12 to 1011. All limits are at TA = 25°C, unless otherwise specified. PARAMETER TEST CONDITIONS MIN(1) TYP(1) MAX(1) UNIT STATIC PERFORMANCE Resolution TMIN ≤ TA ≤ TMAX 10 Bits Monotonicity TMIN ≤ TA ≤ TMAX 10 Bits INL Integral non-linearity ±0.7 LSB TMIN ≤ TA ≤ TMAX ±2 DNL Differential non-linearity VA = 2.7 V to 5.5 V −0.03 0.08 LSB TMIN ≤ TA ≤ TMAX −0.25 0.35 ZE Zero code error IOUT = 0 mA mV TMIN ≤ TA ≤ TMAX 15 FSE Full-scale error IOUT = 0 mA −0.1 %FSR TMIN ≤ TA ≤ TMAX −0.75 GE Gain error All ones Loaded to DAC register −0.2 %FSR TMIN ≤ TA ≤ TMAX −1 ZCED Zero code error drift −20 µV/°C TC GE Gain error tempco VA = 3 V −0.7 ppm/°C VA = 5 V −1 OUTPUT CHARACTERISTICS Output voltage range See(2), TMIN ≤ TA ≤ TMAX VREFIN VREFIN V IOZ High-impedance output leakage current(2) TMIN ≤ TA ≤ TMAX ±1 µA ZCO Zero code output VA = 3 V, IOUT = 200 µA 1.3 mV VA = 3 V, IOUT = 1 mA 6 VA = 5 V, IOUT = 200 µA 7 VA = 5 V, IOUT = 1 mA 10
DAC104S085,DAC104S085-Q1 SNAS362G –MAY 2006–REVISED APRIL 2016 www.ti.com Product Folder Links: DAC104S085 DAC104S085-Q1 Submit Documentation Feedback Copyright © 2006–2016, Texas Instruments Incorporated Electrical Characteristics (continued) The following specifications apply for VA = 2.7 V to 5.5 V, VREFIN = VA, CL = 200 pF to GND, fSCLK = 30 MHz, input code range from 12 to 1011. All limits are at TA = 25°C, unless otherwise specified. PARAMETER TEST CONDITIONS MIN(1) TYP(1) MAX(1) UNIT (3) To ensure accuracy, it is required that VA and VREFIN be well bypassed. FSO Full-scale output VA = 3 V, IOUT = 200 µA 2.984 V VA = 3 V, IOUT = 1 mA 2.934 VA = 5 V, IOUT = 200 µA 4.989 VA = 5 V, IOUT = 1 mA 4.958 IOS Output short-circuit current (source) VA = 3 V, VOUT = 0 V, Input Code = 3FFh –56 mA VA = 5 V, VOUT = 0 V, Input Code = 3FFh –69 IOS Output short-circuit current (sink) VA = 3 V, VOUT = 3 V, Input Code = 000h 52 mA VA = 5 V, VOUT = 5 V, Input Code = 000h 75 IO Continuous output current(2) Available on each DAC output, TMIN ≤ TA ≤ TMAX 11 mA CL Maximum load capacitance RL = ∞ 1500 pF RL = 2 kΩ 1500 ZOUT DC output impedance 7.5 Ω REFERENCE INPUT CHARACTERISTICS VREFIN Input range minimum 0.2 V TMIN ≤ TA ≤ TMAX 1 Input range maximum TMIN ≤ TA ≤ TMAX VA V Input impedance 30 kΩ LOGIC INPUT CHARACTERISTICS IIN Input current(2) TMIN ≤ TA ≤ TMAX ±1 µA VIL Input low voltage(2) VA = 3 V 0.9 V TMIN ≤ TA ≤ TMAX 0.6 VA = 5 V 1.5 V TMIN ≤ TA ≤ TMAX 0.8 VIH Input high voltage(2) VA = 3 V 1.4 V TMIN ≤ TA ≤ TMAX 2.1 VA = 5 V 2.1 V TMIN ≤ TA ≤ TMAX 2.4 CIN Input capacitance(2) TMIN ≤ TA ≤ TMAX 3 pF POWER REQUIREMENTS VA (3) Supply voltage minimum TMIN ≤ TA ≤ TMAX 2.7 V Supply voltage maximum TMIN ≤ TA ≤ TMAX 5.5 V IN Normal supply current (output unloaded) fSCLK = 30 MHz VA = 2.7 V to 3.6 V 350 µA TMIN ≤ TA ≤ TMAX 485 VA = 4.5 V to 5.5 V 500 µA TMIN ≤ TA ≤ TMAX 650 fSCLK = 0 MHz VA = 2.7 V to 3.6 V 330 µA VA = 4.5 V to 5.5 V 460 µA IPD Power-down supply current (output unloaded, SYNC = DIN = 0V after PD mode loaded) All PD Modes,(2) VA = 2.7 V to 3.6 V 0.1 µA TMIN ≤ TA ≤ TMAX 1 VA = 4.5 V to 5.5 V 0.15 µA TMIN ≤ TA ≤ TMAX 1
DAC104S085,DAC104S085-Q1 www.ti.com SNAS362G –MAY 2006–REVISED APRIL 2016 Product Folder Links: DAC104S085 DAC104S085-Q1 Submit Documentation FeedbackCopyright © 2006–2016, Texas Instruments Incorporated Electrical Characteristics (continued) The following specifications apply for VA = 2.7 V to 5.5 V, VREFIN = VA, CL = 200 pF to GND, fSCLK = 30 MHz, input code range from 12 to 1011. All limits are at TA = 25°C, unless otherwise specified. PARAMETER TEST CONDITIONS MIN(1) TYP(1) MAX(1) UNIT PN Normal supply power (output unloaded) fSCLK = 30 MHz VA = 2.7 V to 3.6 V 1.1 mW TMIN ≤ TA ≤ TMAX 1.7 VA = 4.5 V to 5.5 V 2.5 mW TMIN ≤ TA ≤ TMAX 3.6 fSCLK = 0 MHz VA = 2.7 V to 3.6 V 1 mW VA = 4.5 V to 5.5 V 2.3 mW PPD Power-down supply power (output unloaded, SYNC = DIN = 0V after PD mode loaded) All PD Modes,(2) VA = 2.7 V to 3.6 V 0.3 µW TMIN ≤ TA ≤ TMAX 3.6 VA = 4.5 V to 5.5 V 0.8 µW TMIN ≤ TA ≤ TMAX 5.5 (1) Typical figures are at TJ = 25°C, and represent most likely parametric norms. Test limits are specified to TI's AOQL (Average Outgoing Quality Level). (2) This parameter is ensured by design and/or characterization and is not tested in production.
7.7 Timing Requirements
Values shown in this table are design targets and are subject to change before product release. The following specifications apply for VA = 2.7 V to 5.5 V, VREFIN = VA, CL = 200 pF to GND, fSCLK = 30 MHz, input code range from 12 to 1011. All limits are at TA = 25°C, unless otherwise specified. MIN(1) TYP(1) MAX(1) UNIT fSCLK SCLK frequency MHz TMIN ≤ TA ≤ TMAX 30 ts Output voltage settling time(2) 100h to 300h code change RL = 2 kΩ, CL = 200 pF 4.5 µs TMIN ≤ TA ≤ TMAX 6 SR Output slew rate 1 V/µs Glitch impulse Code change from 200h to 1FFh 12 nV-sec Digital feedthrough 0.5 nV-sec Digital crosstalk 1 nV-sec DAC-to-DAC crosstalk 3 nV-sec Multiplying bandwidth VREFIN = 2.5 V ± 0.1 Vpp 160 kHz Total harmonic distortion VREFIN = 2.5 V ± 0.1 Vpp input frequency = 10 kHz 70 dB tWU Wake-up time VA = 3 V 6 µsec VA = 5 V 39 µsec 1/fSCLK SCLK cycle time ns TMIN ≤ TA ≤ TMAX 33 tCH SCLK high time ns TMIN ≤ TA ≤ TMAX 10 tCL SCLK low Time ns TMIN ≤ TA ≤ TMAX 10 tSS SYNC set-up time prior to SCLK falling edge ns TMIN ≤ TA ≤ TMAX 10 tDS Data set-up time prior to SCLK falling edge 1.5 ns TMIN ≤ TA ≤ TMAX 3.5 tDH Data hold time after SCLK falling edge 1.5 ns TMIN ≤ TA ≤ TMAX 3.5 tCFSR SCLK fall prior to rise of SYNC ns TMIN ≤ TA ≤ TMAX 3
Values shown in this table are design targets and are subject to change before product release. from 12 to 1011. All limits are at TA = 25°C, unless otherwise specified. Figure 1. Serial Timing Diagram
7.8 Typical Characteristics
Figure 2. INL at VA = 3 V Figure 3. INL at VA = 5 V Figure 4. DNL at VA = 3 V Figure 5. DNL at VA = 5 V Figure 6. INL/DNL vs VREFIN at VA = 3 V Figure 7. INL/DNL vs VREFIN at VA = 5 V
8 Detailed Description
8.1 Overview
- D is the decimal equivalent of the binary code that is loaded into the DAC register. D can take on any value between 0 and 1023. This configuration ensures that the DAC is monotonic. (1)
Figure 26. DAC Resistor String
2.5k 100k 2.5k 100k 2.5k 100k 2.5k 100k Copyright © 2016, Texas Instruments Incorporated DAC104S085,DAC104S085-Q1 SNAS362G –MAY 2006–REVISED APRIL 2016 www.ti.com Product Folder Links: DAC104S085 DAC104S085-Q1 Submit Documentation Feedback Copyright © 2006–2016, Texas Instruments Incorporated
8.2 Functional Block Diagram
8.3 Feature Description
8.3.1 Output Amplifiers
The output amplifiers are rail-to-rail, providing an output voltage range of 0 V to VA when the reference is VA. All amplifiers, even rail-to-rail types, exhibit a loss of linearity as the output approaches the supply rails (0 V and VA, in this case). For this reason, linearity is specified over less than the full output range of the DAC. However, if the reference is less than VA, there is only a loss in linearity in the lowest codes. The output capabilities of the amplifier are described in Electrical Characteristics. The output amplifiers are capable of driving a load of 2 kΩ in parallel with 1500 pF to ground or to VA. The zero- code and full-scale outputs for given load currents are available in Electrical Characteristics.
8.3.2 Reference Voltage
The DAC104S085 uses a single external reference that is shared by all four channels. The reference pin, VREFIN, is not buffered and has an input impedance of 30 kΩ. TI recommends driving the VREFIN by a voltage source with low output impedance. The reference voltage range is 1 V to VA, providing the widest possible output dynamic range.
8.3.3 Power-On Reset
The power-on reset circuit controls the output voltages of the four DACs during power up. Upon application of power, the DAC registers are filled with zeros and the output voltages are 0 V. The outputs remain at 0 V until a valid write sequence is made to the DAC.
0.1 PF+10 PF
8.4 Device Functional Modes
8.4.1 Power-Down Modes
2.5 kΩ or 100 kΩ to ground respectively (see Table 1). Table 1. Power-Down Modes typically tWU µs as stated in Timing Requirements.
8.4.2 Bipolar Operation
to-rail amplifier should be used if the amplifier supplies are limited to ±5 V. Figure 27. Bipolar Operation The output voltage of this circuit for any code is found in Equation 2 and Equation 3.
- D is the input code in decimal form
- With VA = 5 V and R1 = R2 (2)
0 0 Write to specified register but do not update outputs. 0 1 Write to specified register and update outputs. 1 0 Write to all registers and update outputs. A list of rail-to-rail amplifiers suitable for this application are indicated in Table 2. Table 2. Some Rail-to-Rail Amplifiers
8.5 Programming
8.5.1 Serial Interface
clock rates up to 40 MHz. See the Figure 1 for information on a write sequence. sequences to minimize power consumption.
8.5.2 Input Shift Register
the DAC register on the sixteenth falling edge of SCLK. See Figure 1. Figure 28. Input Register Contents there is no change in the mode of operation or in the DAC output voltages.
8.5.3 DSP and Microprocessor Interfacing
to hasten the design process.
8.5.3.1 ADSP-2101 and ADSP2103 Interfacing
register and must be configured for Internal Clock Operation, Active Low Framing and 16-bit Word Length. Transmission is started by writing a word to the Tx register after the SPORT mode has been enabled. Figure 29. ADSP-2101 and ADSP2103 Interface Figure 30. 80C51 and 80L51 Interface the DAC104S085 is driven from a port line (PC7 in Figure 31), similar to the 80C51/80L51. second byte of data to the DAC, after which PC7 must be raised to end the write sequence. Figure 31. 68HC11 Interface
8.5.3.4 Microwire Interface
driving the SCLK of the DAC104S085.
Figure 32. Microwire Interface
9 Application and Implementation
validate and test their design implementation to confirm system functionality.
9.1 Application Information
supply voltage. The advantages of using a reference source over a voltage regulator are accuracy and stability.
9.1.1 LM4130
reduces output noise. The LM4130 comes in a space-saving, 5-pin SOT-23. Figure 33. LM4130 as a Power Supply
9.1.2 LP3985
LP3985 device comes in a space-saving, 5-pin SOT-23 and 5-bump DSBGA packages.
Figure 34. Using the LP3985 Regulator understanding of the capacitor specification is required to ensure correct device operation.
9.1.3 LP2980
grade. It is available in 3-V, 3.3-V, and 5-V versions, among others. Figure 35. Using the LP2980 Regulator too high at low temperatures.
9.2 Typical Application
Figure 36. The LM4050 as a Power Supply
9.2.1 Design Requirements
LM4050 as a voltage reference source for the DAC104S085.
9.2.2 Detailed Design Procedure
DAC104S085. It is available in 4.096-V and 5-V versions and comes in a space-saving, 3-pin SOT-23. DAC104S085 draws its maximum current. Equation 4 and Equation 5 summerize these conditions.
- VZ(min) and VZ(max) are the nominal LM4050 output voltages ± the LM4050 output tolerance over temperature
- IZ(max) is the maximum allowable current through the LM4050
- IZ(min) is the minimum current required by the LM4050 for proper regulation
- IDAC(max) is the maximum DAC104S085 supply current. (5)
9.2.3 Application Curves
Figure 37. 5-V Glitch Response Figure 38. Power-On Reset
10 Power Supply Recommendations
2 GND
1 NetC1_1
11 Layout
11.1 Layout Guidelines
ground plane design uses a fencing technique to prevent the mixing of analog and digital ground current. continuous return path below their traces. board. The clock and data lines must have controlled impedances.
11.2 Layout Example
Figure 39. DAC104S085 Layout Example
DAC104S085,DAC104S085-Q1 SNAS362G –MAY 2006–REVISED APRIL 2016 www.ti.com Product Folder Links: DAC104S085 DAC104S085-Q1 Submit Documentation Feedback Copyright © 2006–2016, Texas Instruments Incorporated
12 Device and Documentation Support
12.1 Device Support
12.1.1 Device Nomenclature
12.1.1.1 Specification Definitions
DIFFERENTIAL NON-LINEARITY (DNL) is the measure of the maximum deviation from the ideal step size of 1 LSB, which is VREF / 1024 = VA / 1024. DAC-to-DAC CROSSTALK is the glitch impulse transferred to a DAC output in response to a full-scale change in the output of another DAC. DIGITAL CROSSTALKis the glitch impulse transferred to a DAC output at mid-scale in response to a full-scale change in the input register of another DAC. DIGITAL FEEDTHROUGH is a measure of the energy injected into the analog output of the DAC from the digital inputs when the DAC outputs are not updated. It is measured with a full-scale code change on the data bus. FULL-SCALE ERRORis the difference between the actual output voltage with a full scale code (3FFh) loaded into the DAC and the value of VA x 1023 / 1024. GAIN ERROR is the deviation from the ideal slope of the transfer function. It can be calculated from Zero and Full-Scale Errors as GE = FSE - ZE, where GE is Gain error, FSE is Full-Scale Error and ZE is Zero Error. GLITCH IMPULSEis the energy injected into the analog output when the input code to the DAC register changes. It is specified as the area of the glitch in nanovolt-seconds. INTEGRAL NON-LINEARITY (INL) is a measure of the deviation of each individual code from a straight line through the input to output transfer function. The deviation of any given code from this straight line is measured from the center of that code value. The end point method is used. INL for this product is specified over a limited range. LEAST SIGNIFICANT BIT (LSB)is the bit that has the smallest value or weight of all bits in a word. This value is LSB = VREF / 2n where
- where VREF is the supply voltage for this product, and "n" is the DAC resolution in bits, which is 10 for the DAC104S085. (6) MAXIMUM LOAD CAPACITANCE is the maximum capacitance that can be driven by the DAC with output stability maintained. MONOTONICITY is the condition of being monotonic, where the DAC has an output that never decreases when the input code increases. MOST SIGNIFICANT BIT (MSB) is the bit that has the largest value or weight of all bits in a word. Its value is 1/2 of VA. MULTIPLYING BANDWIDTHis the frequency at which the output amplitude falls 3dB below the input sine wave on VREFIN with a full-scale code loaded into the DAC. POWER EFFICIENCY is the ratio of the output current to the total supply current. The output current comes from the power supply. The difference between the supply and output currents is the power consumed by the device without a load. SETTLING TIME is the time for the output to settle to within 1/2 LSB of the final value after the input code is updated. TOTAL HARMONIC DISTORTION (THD)is the measure of the harmonics present at the output of the DACs with an ideal sine wave applied to VREFIN. THD is measured in dB. WAKE-UP TIMEis the time for the output to exit power-down mode. This is the time from the falling edge of the 16th SCLK pulse to when the output voltage deviates from the power-down voltage of 0V.
12.2 Related Links
resources, tools and software, and quick access to sample or buy. Table 3. Related Links
12.3 Community Resources
solve problems with fellow engineers. contact information for technical support.
12.4 Trademarks
E2E is a trademark of Texas Instruments. All other trademarks are the property of their respective owners.
12.5 Electrostatic Discharge Caution
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
12.6 Glossary
This glossary lists and explains terms, acronyms, and definitions.
13 Mechanical, Packaging, and Orderable Information
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www.ti.com 23-May-2025 PACKAGING INFORMATION Orderable part number Status (1) Material type (2) Package | Pins Package qty | Carrier RoHS (3) Lead finish/ Ball material (4) MSL rating/ Peak reflow (5) Op temp (°C) Part marking (6) DAC104S085CIMM/NO.A Active Production VSSOP (DGS) | 10 1000 | SMALL T&R Yes SN Level-1-260C-UNLIM -40 to 105 X68C DAC104S085CIMM/NOPB Active Production VSSOP (DGS) | 10 1000 | SMALL T&R Yes SN Level-1-260C-UNLIM -40 to 105 X68C DAC104S085CIMMX/NO.A Active Production VSSOP (DGS) | 10 3500 | LARGE T&R Yes SN Level-1-260C-UNLIM -40 to 105 X68C DAC104S085CIMMX/NOPB Active Production VSSOP (DGS) | 10 3500 | LARGE T&R Yes SN Level-1-260C-UNLIM -40 to 105 X68C DAC104S085CISD/NO.A Active Production WSON (DSC) | 10 1000 | SMALL T&R Yes SN Level-1-260C-UNLIM -40 to 105 X69C DAC104S085CISD/NOPB Active Production WSON (DSC) | 10 1000 | SMALL T&R Yes SN Level-1-260C-UNLIM -40 to 105 X69C DAC104S085CISDX/NO.A Active Production WSON (DSC) | 10 4500 | LARGE T&R Yes SN Level-1-260C-UNLIM -40 to 105 X69C DAC104S085CISDX/NOPB Active Production WSON (DSC) | 10 4500 | LARGE T&R Yes SN Level-1-260C-UNLIM -40 to 105 X69C DAC104S085QIMM/NO.A Active Production VSSOP (DGS) | 10 1000 | SMALL T&R Yes SN Level-1-260C-UNLIM -40 to 125 X68Q DAC104S085QIMM/NOPB Active Production VSSOP (DGS) | 10 1000 | SMALL T&R Yes SN Level-1-260C-UNLIM -40 to 125 X68Q DAC104S085QIMMX/NO.A Active Production VSSOP (DGS) | 10 3500 | LARGE T&R Yes SN Level-1-260C-UNLIM -40 to 125 X68Q DAC104S085QIMMX/NOPB Active Production VSSOP (DGS) | 10 3500 | LARGE T&R Yes SN Level-1-260C-UNLIM -40 to 125 X68Q (1) Status: For more details on status, see our product life cycle. (2) Material type: When designated, preproduction parts are prototypes/experimental devices, and are not yet approved or released for full production. Testing and final process, including without limitation quality assurance, reliability performance testing, and/or process qualification, may not yet be complete, and this item is subject to further changes or possible discontinuation. If available for ordering, purchases will be subject to an additional waiver at checkout, and are intended for early internal evaluation purposes only. These items are sold without warranties of any kind. (3) RoHS values: Yes, No, RoHS Exempt. See the TI RoHS Statement for additional information and value definition. (4) Lead finish/Ball material: Parts may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two lines if the finish value exceeds the maximum column width. (5) MSL rating/Peak reflow: The moisture sensitivity level ratings and peak solder (reflow) temperatures. In the event that a part has multiple moisture sensitivity ratings, only the lowest level per JEDEC standards is shown. Refer to the shipping label for the actual reflow temperature that will be used to mount the part to the printed circuit board. (6) Part marking: There may be an additional marking, which relates to the logo, the lot trace code information, or the environmental category of the part. Multiple part markings will be inside parentheses. Only one part marking contained in parentheses and separated by a "~" will appear on a part. If a line is indented then it is a continuation of the previous line and the two combined represent the entire part marking for that device. Addendum-Page 1
www.ti.com 23-May-2025 Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. OTHER QUALIFIED VERSIONS OF DAC104S085, DAC104S085-Q1 :
- Catalog : DAC104S085
- Automotive : DAC104S085-Q1 NOTE: Qualified Version Definitions:
- Catalog - TI's standard catalog product
- Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects Addendum-Page 2
PACKAGE MATERIALS INFORMATION www.ti.com 9-Aug-2022 TAPE AND REEL INFORMATION Reel Width (W1) REEL DIMENSIONS A0B0K0WDimension designed to accommodate the component lengthDimension designed to accommodate the component thicknessOverall width of the carrier tapePitch between successive cavity centersDimension designed to accommodate the component width TAPE DIMENSIONSK0 P1B0WA0Cavity QUADRANT ASSIGNMENTS FOR PIN 1 ORIENTATION IN TAPE Pocket QuadrantsSprocket HolesQ1Q1Q2Q2Q3Q3Q4Q4User Direction of Feed P1ReelDiameter *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Reel Diameter (mm) Reel Width W1 (mm) (mm) (mm) (mm) (mm) W (mm) Pin1 Quadrant DAC104S085CIMMX/ NOPB DAC104S085CISDX/ NOPB DAC104S085QIMM/ NOPB DAC104S085QIMMX/ NOPB Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION www.ti.com 9-Aug-2022 TAPE AND REEL BOX DIMENSIONS Width (mm) W LH *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) DAC104S085CIMM/NOPB VSSOP DGS 10 1000 210.0 185.0 35.0 DAC104S085CIMMX/ NOPB VSSOP DGS 10 3500 367.0 367.0 35.0 DAC104S085CISD/NOPB WSON DSC 10 1000 210.0 185.0 35.0 DAC104S085CISDX/ NOPB WSON DSC 10 4500 367.0 367.0 35.0 DAC104S085QIMM/NOPB VSSOP DGS 10 1000 210.0 185.0 35.0 DAC104S085QIMMX/ NOPB VSSOP DGS 10 3500 367.0 367.0 35.0 Pack Materials-Page 2
www.ti.com PACKAGE OUTLINE C TYP5.05 4.75
1.1 MAX
8X 0.5 10X 0.27 0.17 0.15 0.05 TYP0.23 0.13 0 - 8 0.25 GAGE PLANE 0.7 0.4 A NOTE 3 3.1 2.9 B NOTE 4 3.1 2.9 4221984/A 05/2015 VSSOP - 1.1 mm max heightDGS0010A SMALL OUTLINE PACKAGE NOTES: 1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing per ASME Y14.5M. 2. This drawing is subject to change without notice. 3. This dimension does not include mold flash, protrusions, or gate burrs. Mold flash, protrusions, or gate burrs shall not exceed 0.15 mm per side. 4. This dimension does not include interlead flash. Interlead flash shall not exceed 0.25 mm per side. 5. Reference JEDEC registration MO-187, variation BA.
0.1 C A B
0.1 C SEE DETAIL A DETAIL A TYPICAL SCALE 3.200
www.ti.com EXAMPLE BOARD LAYOUT (4.4)
0.05 MAX
0.05 MIN
10X (1.45) 10X (0.3) 8X (0.5) (R ) TYP 0.05 4221984/A 05/2015 VSSOP - 1.1 mm max heightDGS0010A SMALL OUTLINE PACKAGE SYMM SYMM LAND PATTERN EXAMPLE SCALE:10X 5 6 NOTES: (continued) 6. Publication IPC-7351 may have alternate designs. 7. Solder mask tolerances between and around signal pads can vary based on board fabrication site. METALSOLDER MASK OPENING NON SOLDER MASK DEFINED SOLDER MASK DETAILS NOT TO SCALE SOLDER MASK OPENING METAL UNDER SOLDER MASK SOLDER MASK DEFINED
www.ti.com EXAMPLE STENCIL DESIGN (4.4) 8X (0.5) 10X (0.3) 10X (1.45) (R ) TYP0.05 4221984/A 05/2015 VSSOP - 1.1 mm max heightDGS0010A SMALL OUTLINE PACKAGE NOTES: (continued) 8. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate design recommendations. 9. Board assembly site may have different recommendations for stencil design. SYMM SYMM 5 6 SOLDER PASTE EXAMPLE BASED ON 0.125 mm THICK STENCIL SCALE:10X
www.ti.com SDA10A (Rev A)
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