AD5620BRJ-1REEL7

AD5620 AD | Alldatasheet

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Technical content

Single, 12-/14-/16-Bit nanoDAC™ with 5 ppm/°C On-Chip Reference in SOT-23 AD5620/AD5640/AD5660 Rev. A 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 © 2005 Analog Devices, Inc. All rights reserved.

FEATURES

Low power, single nanoDACs AD5660: 16 bits AD5640: 14 bits AD5620: 12 bits 12-bit accuracy guaranteed On-chip, 1.25 V/2.5 V, 5 ppm/°C reference Tiny 8-lead SOT-23/MSOP packages Power-down to 480 nA @ 5 V, 200 nA @ 3 V

3 V/5 V single power supply

Guaranteed 16-bit monotonic by design Power-on reset to zero/midscale 3 power-down functions Serial interface with Schmitt-triggered inputs Rail-to-rail operation SYNC interrupt facility

APPLICATIONS

Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators PRODUCT HIGHLIGHTS 1. 12-/14-/16-bit nanoDAC—12-bit accuracy guaranteed. 2. On-chip, 1.25 V/2.5 V , 5 ppm/°C reference. 3. Available in 8-lead SOT-23 and 8-lead MSOP packages. 4. Power-on reset to 0 V or midscale. 5. 10 μs settling time. RELATED DEVICE Part No. Description AD5662 2.7 V to 5.5 V, 16-bit DAC in SOT-23, external reference FUNCTIONAL BLOCK DIAGRAM AD5620/AD5640/AD5660 VREFOUT GND REF(+) VDD RESISTOR NETWORK POWER-DOWN CONTROL LOGIC DAC REGISTER POWER-ON RESET 1.25/2.5V REF OUTPUT BUFFER16-BIT DAC INPUT CONTROL LOGIC VOUT VFB SYNC SCLK DIN 04539-001 Figure 1. GENERAL DESCRIPTION The AD5620/AD5640/AD5660, members of the nanoDAC family of devices, are low power, single, 12-/14-/16-bit, buffered voltage-out DACs and are guaranteed monotonic by design. The AD5620/AD5640/AD5660-1 parts include an internal,

1.25 V , 5 ppm/°C reference, giving a full-scale output voltage

range of 2.5 V . The AD5620/AD5640/AD5660-2-3 parts include an internal, 2.5 V , 5 ppm/°C reference, giving a full-scale output voltage range of 5 V . The reference associated with each part is available at the V REFOUT pin. The parts incorporate a power-on reset circuit to ensure that the DAC output powers up to 0 V (AD5620/AD5640/AD5660-1-2) or midscale (AD5620-3 and AD5660-3) and remains there until a valid write takes place. The parts contain a power-down feature that reduces the current consumption of the device to 480 nA at 5 V and provides software-selectable output loads while in power-down mode. The power consumption is 2.5 mW at 5 V , reducing to 1 μW in power-down mode. The AD5620/AD5640/AD5660 on-chip precision output amplifier allows rail-to-rail output swing to be achieved. For remote sensing applications, the output amplifier’s inverting input is available to the user. The AD5620/AD5640/AD5660 use a versatile 3-wire serial interface that operates at clock rates up to 30 MHz and is compatible with standard SPI®, QSPI™, MICROWIRE™, and DSP interface standards.

Rev. A | Page 2 of 24 TABLE OF CONTENTS Using an REF19x as a Power Supply for the Using the AD5660 as an Isolated, Programmable, Using the AD5620/AD5640/AD5660

REVISION HISTORY

9/05—Rev. 0 to Rev. A 7/05—Revision 0: Initial Version

Rev. A | Page 3 of 24 SPECIFICATIONS AD5620/AD5640/AD5660-2-3 VDD = 4.5 V to 5.5 V , RL = 2 kΩ to GND, CL = 200 pF to GND, CREFOUT = 100 nF; all specifications TMIN to TMAX, unless otherwise noted. Table 1. Parameter A Grade 1 B Grade 1 C Grade 1 Unit Conditions/Comments STATIC PERFORMANCE2 AD5660 Resolution 16 16 16 Bits min Relative Accuracy ±32 ±16 ±16 LSB max Differential Nonlinearity ±1 ±1 ±1 LSB max Guaranteed monotonic by design AD5640 Resolution 14 14 14 Bits min Relative Accuracy ±8 ±4 ±4 LSB max Differential Nonlinearity ±1 ±1 ±1 LSB max Guaranteed monotonic by design AD5620 Resolution 12 12 12 Bits min Relative Accuracy ±6 ±1 ±1 LSB max Differential Nonlinearity ±1 ±1 ±1 LSB max Guaranteed monotonic by design Zero-Code Error 2 2 2 mV typ All 0s loaded to DAC register 10 10 10 mV max Offset Error ±10 ±10 ±10 mV max Full-Scale Error −0.15 −0.15 −0.15 % FSR typ All 1s loaded to DAC register −1 −1 −1 % FSR max Gain Error ±1.5 ±1.5 ±1.5 % FSR max Zero-Code Error Drift ±2 ±2 ±2 μV/°C typ Gain Temperature Coefficient ±2.5 ±2.5 ±2.5 ppm typ Of FSR/°C DC Power Supply Rejection Ratio −75 −75 −75 dB typ DAC code = midscale; V DD = 5 V ± 10% OUTPUT CHARACTERISTICS3 Output Voltage Range 0 0 0 V min V DD V DD V DD V max Output Voltage Settling Time 8 8 8 μs typ ¼ to ¾ scale change settling to ±2 LSB 10 10 10 μs max R L = 2 kΩ; 0 pF < CL < 200 pF Slew Rate 1.5 1.5 1.5 V/μs typ ¼ to ¾ scale Capacitive Load Stability 2 2 2 nF typ R L = ∞ 10 10 10 nF typ R L = 2 kΩ Output Noise Spectral Density 80 80 80 nV/√Hz typ DAC code = midscale, 10 kHz Output Noise (0.1 Hz to 10 Hz) 45 45 45 μV p-p typ DAC code = midscale Digital-to-Analog Glitch Impulse 5 5 5 nV-s typ 1 LSB change around major carry Digital Feedthrough 0.1 0.1 0.1 nV-s typ DC Output Impedance 0.5 0.5 0.5 Ω typ Short-Circuit Current 30 30 30 mA typ V DD = 5 V Power-Up Time 5 5 5 μs typ Coming out of power-down mode; V DD = 5 V REFERENCE OUTPUT Output Voltage 2.495 2.495 2.495 V min At ambient 2.505 2.505 2.505 V max Reference TC3 ±10 ±10 ±5 ppm/°C typ ±20 ppm/°C max Output Impedance 2.8 2.8 2.8 kΩ typ

Rev. A | Page 4 of 24 Parameter A Grade 1 B Grade 1 C Grade 1 Unit Conditions/Comments LOGIC INPUTS3 Input Current ±2 ±2 ±2 μA max All digital inputs VINL, Input Low Voltage 0.8 0.8 0.8 V max V DD = 5 V VINH, Input High Voltage 2 2 2 V min V DD = 5 V Pin Capacitance 3 3 3 pF typ POWER REQUIREMENTS VDD 4.5 4.5 4.5 V min All digital inputs at 0 V or V DD 5.5 5.5 5.5 V max DAC active and excluding load current IDD (Normal Mode) VDD = 4.5 V to 5.5 V 1 1 1 mA max V IH = VDD and VIL = GND IDD (All Power-Down Modes) VDD = 4.5 V to 5.5 V 1 1 1 μA max V IH = VDD and VIL = GND 1 Temperature range is −15°C to +105°C, typical at 25°C. 2 Linearity calculated using a reduced code range: AD5660 (Code 511 to Code 65024); AD5640 (Code 128 to Code 16256); AD5620 (Code 32 to Code 4064). Output unloaded. Linearity tested with VDD = 5.5 V. If part is operated with a VDD < 5 V, the output is clamped to VDD. 3 Guaranteed by design and characterization; not production tested.

Rev. A | Page 5 of 24 AD5620/AD5640/AD5660-1 VDD1 = 2.7 V to 3.3 V , RL = 2 kΩ to GND, CL = 200 pF to GND, CREFOUT = 100 nF; all specifications TMIN to TMAX, unless otherwise noted. Table 2. Parameter A Grade 2 B Grade 2 C Grade 2 Unit Conditions/Comments STATIC PERFORMANCE3 AD5660 Resolution 16 16 16 Bits min Relative Accuracy ±32 ±16 ±16 LSB max Differential Nonlinearity ±1 ±1 ±1 LSB max Guaranteed monotonic by design AD5640 Resolution 14 14 14 Bits min Relative Accuracy ±8 ±4 ±4 LSB max Differential Nonlinearity ±1 ±1 ±1 LSB max Guaranteed monotonic by design AD5620 Resolution 12 12 12 Bits min Relative Accuracy ±6 ±1 ±1 LSB max Differential Nonlinearity ±1 ±1 ±1 LSB max Guaranteed monotonic by design Zero-Code Error 2 2 2 mV typ All 0s loaded to DAC register 8 8 8 mV max Offset Error ±9 ±9 ±9 mV max Full-Scale Error ±0.15 ±0.15 ±0.15 % FSR typ All 1s loaded to DAC register Gain Error ±0.85 ±0.85 ±0.85 % FSR max Zero-Code Error Drift ±2 ±2 ±2 μV/°C typ Gain Temperature Coefficient ±2.5 ±2.5 ±2.5 ppm typ Of FSR/°C DC Power Supply Rejection Ratio −60 −60 −60 dB typ DAC code = midscale; V DD = 3 V ± 10% OUTPUT CHARACTERISTICS4 Output Voltage Range 0 0 V min V DD V DD V DD V max Output Voltage Settling Time 8 8 8 μs typ ¼ to ¾ scale change settling to ±2 LSB 10 10 10 μs max R L = 2 kΩ; 0 pF < CL < 200 pF Slew Rate 1.5 1.5 1.5 V/μs typ ¼ to ¾ scale Capacitive Load Stability 2 2 2 nF typ R L = ∞ 10 10 10 nF typ R L = 2 kΩ Output Noise Spectral Density 80 80 80 nV/√Hz typ DAC code = midscale, 10 kHz Output Noise (0.1 Hz to 10 Hz) 20 20 20 μV p-p typ DAC code = midscale Digital-to-Analog Glitch Impulse 5 5 5 nV-s typ 1 LSB change around major carry Digital Feedthrough 0.1 0.1 0.1 nV-s typ DC Output Impedance 0.5 0.5 0.5 Ω typ Short-Circuit Current 30 30 30 mA typ V DD = 3 V Power-Up Time 5 5 5 μs typ Coming out of power-down mode; V DD = 3 V REFERENCE OUTPUT Output Voltage 1.247 1.247 1.247 V min At ambient 1.253 1.253 1.253 V max Reference TC4 ±10 ±10 ±5 ppm/°C typ ±25 ppm/°C max Output Impedance 2.8 2.8 2.8 kΩ typ

Rev. A | Page 6 of 24 Parameter A Grade 2 B Grade 2 C Grade 2 Unit Conditions/Comments LOGIC INPUTS4 Input Current ±1 ±1 ±1 μA max All digital inputs VINL, Input Low Voltage 0.8 0.8 0.8 V max V DD = 3 V VINH, Input High Voltage 2 2 2 V min V DD = 3 V Pin Capacitance 3 3 3 pF max POWER REQUIREMENTS VDD 2.7 2.7 2.7 V min All digital inputs at 0 V or V DD 3.3 3.3 3.3 V max DAC active and excluding load current IDD (Normal Mode) IDD (All Power-Down Modes) 1 Part is functional with VDD up to 5.5 V. 2 Temperature range is −15°C to +105°C, typical at +25°C. 3 Linearity calculated using a reduced code range: AD5660 (Code 511 to Code 65024); AD5640 (Code 128 to Code 16256); AD5620 (Code 32 to Code 4064). Output unloaded. 4 Guaranteed by design and characterization; not production tested.

All input signals are specified with tr = tf = 1 ns/V (10% to 90% of VDD) and timed from a voltage level of (VIL + VIH)/2. See Figure 2. VDD = 2.7 V to 5.5 V; all specifications TMIN to TMAX, unless otherwise noted. Figure 2. Serial Write Operation

Rev. A | Page 8 of 24 ABSOLUTE MAXIMUM RATINGS TA = 25°C, unless otherwise noted. Table 4. Parameter Rating VDD to GND −0.3 V to +7 V VOUT to GND −0.3 V to V DD + 0.3 V VFB to GND −0.3 V to V DD + 0.3 V VREFOUT to GND −0.3 V to V DD + 0.3 V Digital Input Voltage to GND −0.3 V to V DD + 0.3 V Operating Temperature Range Industrial −15°C to +105°C Storage Temperature Range −65°C to +150°C Junction Temperature (TJ max) 150°C Power Dissipation (T J max − TA)/θJA θJA Thermal Impedance 119°C/W θJA Thermal Impedance 141°C/W θJC Thermal Impedance 44°C/W Reflow Soldering Peak Temperature SnPb 240°C Pb-Free 260°C 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.

shows a block diagram of the DAC architecture. Figure 38. DAC Architecture Figure 39. Resistor String

1.25 V , 5 ppm/°C reference, giving a full-scale output voltage of

GND for reference stability. scale settling time of 10 μs. MICROWIRE interface standards as well as most DSPs. See Figure 2 for a timing diagram of a typical write sequence. The write sequence begins by bringing the SYNC line low. that a falling edge of SYNC can initiate the next write sequence. again just before the next write sequence.

reset circuit that controls the output voltage during power-up.

0 V , and the AD5620/AD5660-3 DAC output powers up to

it is in the process of powering up. Table 6. Modes of Operation for the AD5660 Table 7. Modes of Operation for the AD5620/AD5640 Figure 44. Output Stage During Power-Down

1 ADDITIONAL PINS OMITTED FOR CLARITY

Figure 45. AD5660-to-Blackfin ADSP-BF53x Interface

is taken high at the end of this procedure. Figure 46. AD5660-to-68HC11/68L11 Interface transmit routine should take this into account. Figure 47. AD5660-to-80C51/80L51 Interface AD5660 on the rising edge of the SK. Figure 48. AD5660-to-MICROWIRE Interface

Rev. A | Page 23 of 24 OUTLINE DIMENSIONS

2.90 BSC

1.60 BSC

1.95 BSC

0.65 BSC

0.38 0.22

0.15 MAX

1.30 1.15 0.90 SEATING PLANE 1.45 MAX 0.22 0.08 0.60 0.45 0.30

2.80 BSC

COMPLIANT TO JEDEC STANDARDS MO-178-BA COMPLIANT TO JEDEC STANDARDS MO-187-AA 0.80 0.60 0.40 PIN 1 0.38 0.22

1.10 MAX

3.20 3.00 2.80 COPLANARITY 0.10 0.23 0.08 3.20 3.00 2.80 5.15 4.90 4.65 0.15 0.00 0.95 0.85 0.75 Figure 53. 8-Lead Small Outline Transistor Package [SOT-23] Figure 54. 8-Lead Mini Small Outline Package [MSOP]

Description

AD5620ARJ-1500RL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D2K Zero ±6 LSB INL 1.25 V AD5620ARJ-1REEL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D2K Zero ±6 LSB INL 1.25 V AD5620ARJ-2500RL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D2L Zero ±6 LSB INL 2.5 V AD5620ARJ-2REEL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D2L Zero ±6 LSB INL 2.5 V AD5620BRJ-1500RL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D2H Zero ±1 LSB INL 1.25 V AD5620BRJ-1REEL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D2H Zero ±1 LSB INL 1.25 V AD5620BRJ-2500RL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D2J Zero ±1 LSB INL 2.5 V AD5620BRJ-2REEL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D2J Zero ±1 LSB INL 2.5 V AD5620CRM-1 −15°C to +105°C 8-Lead MSOP RM-8 D2M Zero ±1 LSB INL 1.25 V AD5620CRM-1REEL7 −15°C to +105°C 8-Lead MSOP RM-8 D2M Zero ±1 LSB INL 1.25 V AD5620CRM-2 −15°C to +105°C 8-Lead MSOP RM-8 D2N Zero ±1 LSB INL 2.5 V AD5620CRM-2REEL7 −15°C to +105°C 8-Lead MSOP RM-8 D2N Zero ±1 LSB INL 2.5 V AD5620CRM-3 −15°C to +105°C 8-Lead MSOP RM-8 D2P Midscale ±1 LSB INL 2.5 V AD5620CRM-3REEL7 −15°C to +105°C 8-Lead MSOP RM-8 D2P Midscale ±1 LSB INL 2.5 V EVAL-AD5620EB Evaluation Board

Rev. A | Page 24 of 24 AD5640 ORDERING GUIDE Model Temp. Range Package AD5640ARJ-2500RL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D2T Zero ±8 LSB INL 2.5 V AD5640ARJ-2REEL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D2T Zero ±8 LSB INL 2.5 V AD5640BRJ-1500RL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D2Q Zero ±4 LSB INL 1.25 V AD5640BRJ-1REEL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D2Q Zero ±4 LSB INL 1.25 V AD5640BRJ-2500RL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D2R Zero ±4 LSB INL 2.5 V AD5640BRJ-2REEL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D2R Zero ±4 LSB INL 2.5 V AD5640CRM-1 −15°C to +105°C 8-Lead MSOP RM-8 D2U Zero ±4 LSB INL 1.25 V AD5640CRM-1REEL7 −15°C to +105°C 8-Lead MSOP RM-8 D2U Zero ±4 LSB INL 1.25 V AD5640CRM-2 −15°C to +105°C 8-Lead MSOP RM-8 D2V Zero ±4 LSB INL 2.5 V AD5640CRM-2REEL7 −15°C to +105°C 8-Lead MSOP RM-8 D2V Zero ±4 LSB INL 2.5 V EVAL-AD5640EB Evaluation Board AD5660 ORDERING GUIDE Model Temp. Range Package AD5660ARJ-1500RL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D30 Zero ±32 LSB INL 1.25 V AD5660ARJ-1REEL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D30 Zero ±32 LSB INL 1.25 V AD5660ARJ-2500RL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D31 Zero ±32 LSB INL 2.5 V AD5660ARJ-2REEL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D31 Zero ±32 LSB INL 2.5 V AD5660ARJ-3500RL7 −15°C to +105°C 8-Lead SO T-23 RJ-8 D32 Midscale ±32 LSB INL 2.5 V AD5660ARJ-3REEL7 −15°C to +105°C 8-Lead SOT- 23 RJ-8 D32 Midscale ±32 LSB INL 2.5 V AD5660BRJ-1500RL7 −15°C to +105°C 8-Lead SO T-23 RJ-8 D2X Zero ±16 LSB INL 1.25 V AD5660BRJ-1REEL7 −15°C to +105°C 8-Lead SO T-23 RJ-8 D2X Zero ±16 LSB INL 1.25 V AD5660BRJ-2500RL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D2Y Zero ±16 LSB INL 2.5 V AD5660BRJ-2REEL7 −15°C to +105°C 8-Lead SOT-23 RJ-8 D2Y Zero ±16 LSB INL 2.5 V AD5660BRJ-3500RL7 −15°C to +105°C 8-Lead SO T-23 RJ-8 D2Z Midscale ±16 LSB INL 2.5 V AD5660BRJ-3REEL7 −15°C to +105°C 8-Lead SO T-23 RJ-8 D2Z Midscale ±16 LSB INL 2.5 V AD5660CRM-1 −15°C to +105°C 8-Lead MSOP RM-8 D33 Zero ±16 LSB INL 1.25 V AD5660CRM-1REEL7 −15°C to +105°C 8-Lead MSOP RM-8 D33 Zero ±16 LSB INL 1.25 V AD5660CRM-2 −15°C to +105°C 8-Lead MSOP RM-8 D34 Zero ±16 LSB INL 2.5 V AD5660CRM-2REEL7 −15°C to +105°C 8-Lead MSOP RM-8 D34 Zero ±16 LSB INL 2.5 V AD5660CRM-3 −15°C to +105°C 8-Lead MSOP RM-8 D35 Midscale ±16 LSB INL 2.5 V AD5660CRM-3REEL7 −15°C to +105°C 8-Lead MSOP RM-8 D35 Midscale ±16 LSB INL 2.5 V EVAL-AD5660EB Evaluation Board © 2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the prop erty of their respective owners. D04539–0–9/05(A)