High Precision, Impedance & Electrochemical Front End Features: Analog input 16-bit ADC with both 800 kSPS and 1.6 MSPS options Voltage, current, and impedance measurement capability Internal and external current and voltage channels Ultralow leakage switch matrix and input mux Input buffers and programmable gain amplifier Voltage DACs Dual output voltage DAC with an output range of 0.2 V to 2.4 V 12-bit VBIAS0 output to bias potentiostat 6-bit VZERO0 output to bias TIA Ultra low power: 1 µA 1 high speed, 12-bit DAC Output range to sensor: ±607 mV Programmable gain amplifier on output with gain settings of 2 and 0.05 Amplifiers, accelerators, and references 1 low power, low noise potentiostat amplifier suitable for potentiostat bias in electrochemical sensing 1 low noise, low power TIA, suitable for measuring sensor current output 50 pA to 3 mA range Programmable load and gain resistors for sensor output Analog hardware accelerators Digital waveform generator Receive filters Complex impedance measurement (DFT) engine 1 high speed TIA to handle wide bandwidth input signals from 0.015 Hz up to 200 kHz Digital waveform generator for generation of sinusoid and trapezoid waveforms 2.5 V and 1.82 V internal reference voltage sources System level power savings Fast power-up and power-down analog blocks for duty cycling Programmable AFE sequencer to minimize workload of host controller 6 kB SRAM to preprogram AFE sequences Ultra low power potentiostat channel: 6.5 µAof current consumption when powered on and all other blocks in hibernate mode Smart sensor synchronization and data collection Cycle accurate control of sensor measurement Sequencer controlled GPIOs On-chip peripherals SPI serial input/output Wake-up timer Interrupt controller Power 2.8 V to 3.6 V supply 1.82 V input/output compliant Power-on reset Hibernate mode with low power DAC and potentiostat amplifier powered up to maintain sensor bias Package and temperature range 3.6 mm × 4.2 mm, 56-ball WLCSP 7 mm × 7 mm, 48-lead LFCSP Fully specified for operating temperature range of −40°C to +85°C AD5940 and AD5941 fully specified for operating temperature range of −40°C to +85°C AD5941W fully specified for operating temperature range of −40°C to +105°C AEC-Q100 qualified for automotive applications

Dual Channel, 16-Bit, 33 MUPS, Multispan, Multi-IO SPI DAC Features: 16-bit resolution 33 MUPS single channel rate in fast mode 22 MUPS single channel rate in precision mode 65 ns small signal settling time to 0.1% accuracy 100ns large signal settling time to 0.1% accuracy Ultra small glitch: < 50 pV×s Ultra low latency: 5 ns THD: −105 dB at 1 kHz Highly configurable output voltage span and offset 1.2 V and 1.8 V logic level compatible Single (classic), dual, and quad SPI modes Multiple error detectors, both analog and digital domains 2.5 V internal voltage reference, 10 ppm/°C maximum temperature coefficient 5 mm × 5 mm LFCSP

Single Supply, 24-Bit, Sigma-Delta ADC with 10 V and 0 mA to 20 mA Inputs Features: Internal or external clock Tested for robustness per: IEC61000-4-2, IEC61000-4-3, IEC61000-4-4, IEC61000-4-5, IEC61000-4-6, CISPR 11 24-bit ADC with integrated analog front end Fast and flexible output rate: 1.25 SPS to 31.25 kSPS Channel scan data rate of 6.21 kSPS per channel (161 μs settling) 16 noise free bits at 1 kSPS per channel 85 dB rejection of 50 Hz and 60 Hz at 20 SPS per channel ±10 V inputs, 4 differential or 8 single-ended Pin absolute maximum rating ±50 V Absolute input pin voltage up to ±20 V ≥1 MΩ impedance ±0.06% accuracy at 25°C 0 mA to 20 mA inputs, 4 single-ended Pin absolute maximum rating ±50 mA Input range from −0.5 mA to +24 mA 60 Ω impedance ±0.08% accuracy at 25°C On-chip 2.5 V reference ±0.12% accuracy at 25°C, ±5 ppm/°C (typical) drift Power supplies AVDD = 3.0 V to 5.5 V IOVDD = 2 V to 5.5 V Total IDD = 3.9 mA Temperature range: −40°C to +105°C 3-wire or 4-wire serial digital interface (Schmitt trigger on SCLK) SPI, QSPI, MICROWIRE, and DSP compatible

16-Bit, 16-Channel, 500 kSPS/1 MSPS, Easy Drive Multiplexed SAR ADC Features: Easy Drive Reduced analog input and reference drive requirements On-chip reference buffer (WLCSP only) Overvoltage protection up to 5 mA on each analog input Long acquisition phase, ≥71.5% (715 ns/1000 ns) of cycle time at 1 MSPS High performance Sample rate: 500 kSPS (AD4695) or 1 MSPS (AD4696) INL: ±1.0 LSB maximum Guaranteed 16-bit, no missing codes SINAD: 93 dB typical, fIN = 1 kHz Oversampled dynamic range: 111.2 dB, OSR = 64 Small footprint, high channel density 32-lead 5 mm × 5 mm LFCSP 36-ball 2.96 mm × 2.96 mm WLCSP Easy Drive features support system level designs with fewer components Enhanced digital functionality First conversion accurate, no latency or pipeline delay Fast conversion time and dual-/quad-SDO modes allow low SPI clock rates Customizable channel sequencer On-chip oversampling and decimation Threshold detection alerts Offset and gain correction Autonomous conversion (autocycle) mode 1.14 V to 1.98 V logic SPI Low power 8 mW at fS = 1 MSPS and 4 mW at fS = 500 kSPS 4 μW standby power dissipation with the internal LDO disabled Internal LDO enables 3.15 V to 5.5 V, single analog supply operation Wide operating temperature range: −40°C to +125°C

Single Channel, 64-Position, Push-Button, 8% Resistor Tolerance, Nonvolatile Digital Potentiometer Features: Nominal resistor tolerance error: ±8% maximum Wiper current: ±6 mA Rheostat mode temperature coefficient: 35 ppm/°C Low power consumption: 2.5 μA max @ 2.7 V and 125°C Wide bandwidth: 4 MHz (5 kΩ option) Power-on EEPROM refresh time < 50 μs 50-year typical data retention at 125°C 1 million write cycles 2.3 V to 5.5 V supply operation Built-in adaptive debouncer Wide operating temperature: −40°C to +125°C Thin, 2 mm × 2 mm × 0.55 mm, 8-lead LFCSP package

Quad Channel, 256-Position, I2C / SPI, Nonvolatile Digital Potentiometer Features: 10 kΩ and 100 kΩ resistance options Resistor tolerance: 8% maximum Wiper current: ±6 mA Low temperature coefficient: 35 ppm/°C Wide bandwidth: 3 MHz Fast start-up time < 75 μs Linear gain setting mode Single- and dual-supply operation Independent logic supply: 1.8 V to 5.5 V Wide operating temperature: −40°C to +125°C 4 mm × 4 mm package optionAD5144-EP Supports defense and aerospace applications (AQEC standard) Download AD5144-EP data sheet (PDF) Military temperature range (−55°C to +125°C) Controlled manufacturing baseline One assembly/test site One fabrication site Product change notification Qualification data available on request V62/20603

256-Position Dual Channel SPI Digital Potentiometer Features: 2-Channel, 256-position potentiometer End-to-End Resistance  2.5kΩ, 10kΩ, 50kΩ, 100kΩ Compact 10-lead MSOP (3 mm x 4.9 mm) package Fast settling time: ts = 5 μs typical on power-up Full read/write of wiper register Power-On preset to midscale Single Supply: 2.7 V to 5.5 V Low Temperature  Coefficient 35 ppm/°C Low power, IDD = 6 µA maximum Wide operating temperature: –40°C to +125°C Evaluation board available Qualified for automotive applications

Dual, Increment/Decrement Digital Potentiometer Features: 128 Position Potentiometer Replacement 10K, 50K, 100K, 1M Ohm Very Low Power - 40 µA Max Increment/Decrement Count Control +3 to +5V Single-Supply;  Or ±2.7V Dual-Supply Operation Internal Power ON Mid-Scale Preset

Nonvolatile, I2C-Compatible 64-Position, Digital Potentiometer Features: Nonvolatile memory maintains wiper settings  64-position digital potentiometer  Compact MSOP-10 (3 mm × 4.9 mm)  I2C-compatible interface VLOGIC pin provides increased interface flexibility  End-to-end resistance 1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ Resistance tolerance stored in EEPROM (0.1% accuracy) Power-on EEPROM refresh time <1 ms Software write protect command  Address Decode Pin AD0 and Address Decode Pin AD1 allow four packages per bus  100-year typical data retention at 55°C  Wide operating temperature −40°C to +85°C 

2.5 V to 5.5 V, 120 A, 2-Wire Interface, Voltage-Output 12-Bit DAC Features: Buffered voltage output 12-bit DAC 6-lead SOT-23 and 8-lead MSOP packages Micropower operation: 120 μA at 3 V 2-wire (I2C-compatible) serial interface Data readback capability 2.5 V to 5.5 V power supply Guaranteed monotonic by design over all codes Power-down to 50 nA at 3 V Reference derived from power supply Power-on reset to 0 V On-chip rail-to-rail output buffer amplifier 3 power-down functions