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

4-Channel, I2C, Ultralow Power 12-Bit ADC in 20-Lead LFCSP/TSSOP Features: I2C-compatible serial interface supports standard and fast modes Ultralow power: 90 μW typical at 3 V in fast mode Specified for VDD of 2.7 V to 5.25 V On-chip accurate 2.5 V reference, 5 ppm/°C typical drift 4 single-ended analog input channels ALERT function BUSY function Autocycle mode Wide input bandwidth 68 dB signal-to-noise ratio (SNR) typical at input frequency of 1 kHz Flexible power/throughput rate management No pipeline delays Power-down mode 550 nA typical at VDD = 5.25 V 435 nA typical at VDD = 3 V 20-lead LFCSP and TSSOP packages Temperature range: −40°C to +125°C

2-Channel, 12-Bit ADC with I2C Compatible Interface in 10-Lead MSOP Features: 12-Bit ADC with Fast Conversion Time: 2 µs Two Single-Ended Analog Input Channels Specified for VDD of 2.7 V to 5.5 V Low Power Consumption Fast Throughput Rate: - 188 kSPS Sequencer Operation Automatic Cycle Mode I2C® Compatible Serial Interface I2C® Interface supports: Standard, Fast, and High-Speed Modes Out of Range Indicator Pin-Selectable Addressing via AS Automatic Shutdown Mode: - 1 µA max

+3.3 V/+5 V Multiplying 12-Bit DAC With an 8-Bit Byte Interface Features: 12-Bit Multiplying DACs Guaranteed Specifications wth +3.3 V/+5 Supply 0.5 LSBs INL and DNL Low Power: 5 µW typ Fast Settling: 600 ns to 0.01% with AD843 Fast Interface 40 ns Strobe Pulsewidth (AD7943) 40 ns Write Pulsewidth (AD7945, A7948) Low Glitch: 60 nV-s with Amplifier Connected

+3.3 V/+5 V Multiplying 12-Bit DAC With a Serial Interface Features: 12-Bit Multiplying DACs 0.5 LSBs INL and DNL Fast Interface 40 ns Strobe Pulsewidth (AD7943) 40 ns Write Pulsewidth (AD7945, A7948) Guaranteed Specifications wth +3.3 V/+5 Supply Low Power: 5 µW typ Low Glitch: 60 nV-s with Amplifier Connected Fast Settling: 600 ns to 0.01% with AD843

4-Channel, 4 MSPS, 12-Bit, Dual, Simultaneous Sampling SAR ADCs Features: 16-bit, 14-bit, or 12-bit dual simultaneous sampling SAR ADC Single-ended analog inputs 4-channel with 2:1 multiplexers Channel sequencer mode High throughput rate of up to 4 MSPS SNR (typical) 87.5 dB (AD7386), VREF = 3.3 V external 84 dB (AD7387), VREF = 3.3 V external 73.8 dB (AD7388) 93 dB with OSR = 8, VREF = 2.5 V internal (AD7386) On-chip oversampling functions INL (typical) ±1.5 LSB (AD7386) ±0.5 LSB (AD7387) ±0.2 LSB (AD7388) Resolution boost function 2.5 V internal reference at 10 ppm/°C (maximum) Alert function −40°C to +125°C temperature range 16-lead, 3 mm × 3 mm LFCSP

16-Bit, Isolated Sigma-Delta Modulator Features: 5 MHz to 20 MHz external clock input rate 16 bits, no missing codes Signal to noise ratio (SNR): 88 dB (typical) Effective number of bits (ENOB): 14.2 bits typical Typical offset drift vs. temperature: 1.6 μV/°C typical On-board digital isolator On-board reference See data sheet for additional featuresAD7403-EP supports defense and aerospace applications (AQEC standard) Download AD7403-EP data sheet Military temperature range: −55°C to +125°C Controlled manufacturing baseline One assembly/test site One fabrication site Enhanced product change notification Qualification data available on request V62/16625 DSCC Drawing Number

Dual 12-Bit CMOS DAC with Parallel Load Input Structure Features: Two 12-bit DACs in One Package DAC Ladder Resistance Matching: 0.5% Space Saving Skinny DIP and Suface Mount Packages 4-Quadrant Multiplication Low Gain Error (1 LSB max Over Temperature) Fast Interface Timing

CMOS Dual 8-Bit Buffered Multiplying DAC Features: On-Chip Latches for both DACs +12 V to +15 V Operation DACs matched to 1% Four Quadrant Multiplication TTL/CMOS Compatible from +12 V to +15 V Latch Free (Protection Schottkys not Required)

16-Bit 8/10-Channel, Low Voltage, Low Power, Sigma Delta ADC Features: 8-/10-Channel, High Resolution Σ-Δ ADCs 16-Bit Resolution Factory-Calibrated Single Conversion Cycle Setting Programmable Gain Front End Simultaneous 50 Hz and 60 Hz Rejection VREF Select™ Allows Absolute and Ratiometric Measurement Capability Operation Can Be Optimized for Analog Performance (CHOP = 0) or Channel Throughput (CHOP= 1)