AD5602 AD | Alldatasheet
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Technical content
2.7 V to 5.5 V, <100 μA, 8-/10-/12-Bit nanoDACs® with I2C®-Compatible Interface, Tiny SC70 Package AD5602/AD5612/AD5622 Rev. B Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2006 Analog Devices, Inc. All rights reserved.
FEATURES
Single 8-, 10-, 12-bit DACs, 2 LSB INL 6-lead SC70 package Micropower operation: 100 μA max @ 5 V Power-down to <150 nA @ 3 V 2.7 V to 5.5 V power supply Guaranteed monotonic by design Power-on reset to 0 V with brownout detection 3 power-down functions I2C-compatible serial interface supports standard (100 kHz), fast (400 kHz), and high speed (3.4 MHz) modes On-chip output buffer amplifier, rail-to-rail operation
APPLICATIONS
Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators FUNCTIONAL BLOCK DIAGRAM AD5602/AD5612/AD5622 VDD VOUT GND POWER-ON RESET DAC REGISTER 8-/10-/12-BIT DAC INPUT CONTROL LOGIC POWER-DOWN CONTROL LOGIC OUTPUT BUFFER RESISTOR NETWORK REF(+) SCL SDAADDR 05446-001 Figure 1. Table 1. Related Devices to-rail output swing to be achieved. (400 kHz), and high speed (3.4 MHz) modes. the power supply inputs to give the widest dynamic output range. typical power consumption is 0.4 mW at 5 V .
- Available in a 6-lead SC70 package.
- Maximum 100 μA power consumption, single-supply
5 V , making them ideal for battery-powered applications.
- The on-chip output buffer amplifier allows the output of
- Reference derived from the power supply.
- Standard, fast, and high speed mode I2C interface.
- Designed for very low power consumption.
- Power-down capability. When powered down, the DAC
typically consumes <150 nA at 3 V .
- Power-on reset and brownout detection.
Rev. B | Page 2 of 24 TABLE OF CONTENTS
REVISION HISTORY
3/06—Rev. A to Rev. B 8/05—Rev. 0 to Rev. A 6/05—Revision 0: Initial Version
Rev. B | Page 3 of 24 SPECIFICATIONS VDD = 2.7 V to 5.5 V , RL = 2 kΩ to GND, CL = 200 pF to GND; all specifications TMIN to TMAX, unless otherwise noted. Table 2. A, B, W, Y Versions1 Parameter Min Typ Max Unit Test Conditions/Comments STATIC PERFORMANCE DAC output unloaded Resolution Bits AD5602 8 AD5612 10 AD5622 12 Relative Accuracy2 AD5602 ±0.5 LSB B, Y versions AD5612 ±0.5 LSB B, Y versions ±4 LSB A version AD5622 ±2 LSB B, Y versions ±6 LSB A, W versions Differential Nonlinearity2 ±1 LSB Guaranteed monotonic by design Zero Code Error 0.5 10 mV All 0s loaded to DAC register Offset Error ±0.063 ±10 mV Full-Scale Error 0.5 mV All 1s loaded to DAC register Gain Error ±0.0004 ±0.037 % of FSR Zero Code Error Drift 5 μV/°C Gain Temperature Coefficient 2 ppm of FSR/°C OUTPUT CHARACTERISTICS3 Output Voltage Range 0 VDD V Output Voltage Settling Time 6 10 μs Code ¼ to ¾ Slew Rate 0.5 V/μs Capacitive Load Stability 470 pF RL = ∞ 1000 pF RL = 2 kΩ Output Noise Spectral Density 120 nV/Hz DAC code = midscale, 10 kHz Noise 2 DAC code = midscale, 0.1 Hz to 10 Hz bandwidth Digital-to-Analog Glitch Impulse 5 nV-s 1 LSB change around major carry Digital Feedthrough 0.2 nV-s DC Output Impedance 0.5 Ω Short Circuit Current 15 mA VDD = 3 V/5 V LOGIC INPUTS (SDA, SCL) IIN, Input Current ±1 μA VINL, Input Low Voltage 0.3 × VDD V VINH, Input High Voltage 0.7 × VDD V CIN, Pin Capacitance 2 pF VHYST, Input Hysteresis 0.1 × VDD V LOGIC OUTPUTS (OPEN DRAIN) VOL, Output Low Voltage 0.4 V ISINK = 3 mA
0.6 V ISINK = 6 mA
Floating-State Leakage Current ±1 μA Floating-State Output Capacitance 2 pF
Rev. B | Page 4 of 24 A, B, W, Y Versions1 Parameter Min Typ Max Unit Test Conditions/Comments POWER REQUIREMENTS VDD 2.7 5.5 V IDD (Normal Mode) DAC active and excluding load current VDD = 4.5 V to 5.5 V 75 100 μA VIH = VDD and VIL = GND VDD = 2.7 V to 3.6 V 60 90 μA VIH = VDD and VIL = GND IDD (All Power-Down Modes) VDD = 4.5 V to 5.5 V 0.3 1 μA VIH = VDD and VIL = GND VDD = 2.7 V to 3.6 V 0.15 1 μA VIH = VDD and VIL = GND POWER EFFICIENCY IOUT/IDD 96 % ILOAD = 2 mA, VDD = 5 V 1 Temperature ranges for A, B versions: −40°C to +125°C, typical at 25°C. 2 Linearity calculated using a reduced code range 64 to 4032. 3 Guaranteed by design and characterization, not production tested. I2C TIMING SPECIFICATIONS VDD = 2.7 V to 5.5 V; all specifications TMIN to TMAX, fSCL = 3.4 MHz, unless otherwise noted.1 Table 3. Limit at TMIN, TMAX Parameter Conditions2 Min Max Unit Description fSCL3 Standard mode 100 KHz Serial clock frequency Fast mode 400 KHz High speed mode, CB = 100 pF 3.4 MHz High speed mode, CB = 400 pF 1.7 MHz t1 Standard mode 4 μs tHIGH, SCL high time Fast mode 0.6 μs High speed mode, CB = 100 pF 60 ns High speed mode, CB = 400 pF 120 ns t2 Standard mode 4.7 μs tLOW, SCL low time Fast mode 1.3 μs High speed mode, CB = 100 pF 160 ns High speed mode, CB = 400 pF 320 ns t3 Standard mode 250 ns tSU;DAT, data setup time Fast mode 100 ns High speed mode 10 ns t4 Standard mode 0 3.45 μs tHD;DAT, data hold time Fast mode 0 0.9 μs High speed mode, CB = 100 pF 0 70 ns High speed mode, CB = 400 pF 0 150 ns t5 Standard mode 4.7 μs tSU;STA, set-up time for a repeated start condition Fast mode 0.6 μs High speed mode 160 ns t6 Standard mode 4 μs tHD;STA, hold time (repeated) start condition Fast mode 0.6 μs High speed mode 160 ns t7 Standard mode 4.7 μs tBUF, bus free time between a stop and a start condition Fast mode 1.3 μs
2 CB refers to the capacitance on the bus line. 4 Input filtering on the SCL and SDA inputs suppress noise spikes that are less than 50 ns for fast mode or 10 ns for high speed mode. Figure 2. 2-Wire Serial Interface Timing Diagram
Rev. B | Page 6 of 24 ABSOLUTE MAXIMUM RATINGS TA = 25°C, unless otherwise noted. Table 4. Parameter Rating VDD to GND –0.3 V to + 7.0 V Digital Input Voltage to GND –0.3 V to VDD + 0.3 V VOUT to GND –0.3 V to VDD + 0.3 V Operating Temperature Range Extended Automotive (W, Y Versions) –40°C to +125°C Extended Industrial (A, B Versions) −40°C to +85°C Storage Temperature Range –65°C to +160°C Maximum Junction Temperature 150°C θJA Thermal Impedance 332°C/W θJC Thermal Impedance 120°C/W Lead Temperature, Soldering Vapor Phase (60 sec) 215°C Infrared (15 sec) 220°C ESD 2.0 kV Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ESD CAUTION ESD (electrostatic discharge) sensitive device. Electros tatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge wi thout detection. Although this product features proprietary ESD protection circuitry, permanent dama ge may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.
Figure 3. Pin Configuration Table 5. Pin Function Descriptions 1 ADDR Three-State Address Input. Sets the two least significant bits (Bit A1, Bit A0) of the 7-bit slave address (see Table 6). 2 SCL Serial Clock Line. This is used in conjunction with the SDA line to clock data into or out of the 16-bit input register. is a bidirectional, open-drain data line that should be pulled to the supply with an external pull-up resistor. 4 VDD Power Supply Input. These parts can be operated from 2.7 V to 5.5 V, and VDD should be decoupled to GND. 5 GND Ground. The ground reference point for all circuitry on the part. 6 VOUT Analog Output Voltage from the DAC. The output amplifier has rail-to-rail operation.
Figure 34. 1/f Noise, 0.1 Hz to 10 Hz Bandwidth Figure 35. Output Noise Spectral Density
Figure 48. Placing the AD5602/AD5612/AD5622 into High Speed Mode
Rev. B | Page 21 of 24 CHOOSING A REFERENCE AS POWER SUPPLY The AD5602/AD5612/AD5622 come in tiny SC70 packages with less than 100 μA supply current, thereby making the choice of reference dependent upon the application requirement. For space-saving applications, the ADR425 is available in an SC70 package with excellent drift at 3ppm/°C. It also provides very good noise performance at 3.4 μV p-p in the 0.1 Hz to 10 Hz range. Because the supply current required by the AD5602/AD5612/ AD5622 DACs is extremely low, they are ideal for low supply applications. The ADR293 voltage reference is recommended in this case. This requires 15 μA of quiescent current and can therefore drive multiple DACs in the one system, if required. AD5602/ AD5612/ AD5622 SCL SDA VOUT =0 VT O5 V ADR425 05446-035 Figure 49. ADR425 as Power Supply supplies to the AD5602/AD5612/AD5622 are shown in Table 8. Table 8. Recommended Precision References
0.1 Hz to 10 Hz Noise
D represents the input code in decimal. n represents the bit resolution of the DAC. to a −5 V output, and 0xFFF corresponding to a +5 V output. Figure 50. Bipolar Operation with the AD5602/AD5612/AD5622 possible to the AD5602/AD5612/AD5622. ground. Avoid crossover of digital and analog signals if possible. technique is not always possible with a 2-layer board.
0.65 BSC
1.30 BSC
0.10 MAX
0.10 COPLANARITY
Figure 51. 6-Lead Thin Shrink Small Outline Transistor Package [SC70]
Rev. B | Page 23 of 24 ORDERING GUIDE Model INL (max) I2C Interface Modes Supported Temperature Range Power Supply Range Package Option Package
Description
AD5602YKSZ-1500RL71 ±0.5 LSB Standard, fast and high speed −40°C to +125°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5W AD5602YKSZ-1REEL71 ±0.5 LSB Standard, fast and high speed −40°C to +125°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5W AD5602BKSZ-2500RL71 ±0.5 LSB Standard, fast −40°C to +85°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5X AD5602BKSZ-2REEL71 ±0.5 LSB Standard, fast −40°C to +85°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5X AD5602YKSZ-2500RL71 ±0.5 LSB Standard, fast −40°C to +125°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5Y AD5602YKSZ-2REEL71 ±0.5 LSB Standard, fast −40°C to +125°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5Y AD5612YKSZ-1500RL71 ±0.5 LSB Standard, fast, and high speed −40°C to +125°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5T AD5612YKSZ-1REEL71 ±0.5 LSB Standard, fast, and high speed −40°C to +125°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5T AD5612BKSZ-2500RL71 ±0.5 LSB Standard, fast −40°C to +85°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5U AD5612BKSZ-2REEL71 ±0.5 LSB Standard, fast −40°C to +85°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5U AD5612AKSZ-2500RL71 ±4 LSB Standard, fast −40°C to +85°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D60 AD5612AKSZ-2REEL71 ±4 LSB Standard, fast −40°C to +85°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D60 AD5612YKSZ-2500RL71 ±0.5 LSB Standard, fast −40°C to +125°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5S AD5612YKSZ-2REEL71 ±0.5 LSB Standard, fast −40°C to +125°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5S AD5622YKSZ-1500RL71 ±2 LSB Standard, fast, and high speed −40°C to +125°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5M AD5622YKSZ-1REEL71 ±2 LSB Standard, fast, and high speed −40°C to +125°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5M AD5622BKSZ-2500RL71 ±2 LSB Standard, fast −40°C to +85°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5N AD5622BKSZ-2REEL71 ±2 LSB Standard, fast −40°C to +85°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5N AD5622YKSZ-2500RL71 ±2 LSB Standard, fast −40°C to +125°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5P AD5622YKSZ-2REEL71 ±2 LSB Standard, fast −40°C to +125°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5P AD5622WKSZ-1500RL71 ±6 LSB Standard, fast, and high speed −40°C to +125°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5Q AD5622WKSZ-1REEL71 ±6 LSB Standard, fast, and high speed −40°C to +125°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5Q AD5622AKSZ-2500RL71 ±6 LSB Standard, fast −40°C to +85°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5R AD5622AKSZ-2REEL71 ±6 LSB Standard, fast −40°C to +85°C 2.7 V to 5.5 V KS-6 6-Lead SC70 D5R 1 Z = Pb-free part.
Rev. B | Page 24 of 24 NOTES Purchase of licensed I2C components of Analog Devices or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I2C Patent Rights to use these components in an I2C system, provided that the system conforms to the I2C Standard Specification as defined by Philips. ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05446-0-3/06(B)