Tiny 16-Bit SPI nanoDAC+, with 2 (16-Bit) LSB INL and 2 ppm/C Reference Features: Ultrasmall package: 2 mm × 2 mm, 8-lead LFCSP High relative accuracy (INL): ±2 LSB maximum at 16 bits AD5683R/AD5682R/AD5681R Low drift, 2.5 V reference: 2 ppm/°C typical Selectable span output: 2.5 V or 5 V Total unadjusted error (TUE): 0.06% of FSR maximum Offset error: ±1.5 mV maximum Gain error: ±0.05% of FSR maximum Low glitch: 0.1 nV-sec High drive capability: 20 mA Low power: 1.2 mW at 3.3 V Independent logic supply: 1.62 V logic compatible Wide operating temperature range: −40°C to +105°C Robust 4 kV HBM ESD protection

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

1 MSPS, Ultralow Power 12-Bit ADC in 8-Lead LFCSP Features: Fast throughput rate: 1 MSPS Specified for VDD of 2.09 V to 5.25 V INL of ±1 LSB maximum Analog input range of 0 V to VDD Ultralow power 367 µA typical at 3 V and 1 MSPS 324 nA typical at 3 V in power-down mode Reference provided by VDD Flexible power/throughput rate management High speed serial interface: SPI®-/QSPI™-/MICROWIRE™-/DSP-compatible Busy indicator Power-down mode 8-lead, 2 mm × 2 mm LFCSP package Temperature range: −40°C to +125°C

24-Bit, 8-/16-Channel, 250 kSPS, Sigma-Delta ADC with True Rail-to-Rail Buffers Features: Fast and flexible output rate: 5 SPS to 250 kSPS Performance specifications 17.2 noise free bits at 250 kSPS 20.2 noise free bits at 2.5 kSPS 24 noise free bits at 20 SPS INL: ±1 ppm of FSR 85 dB filter rejection of 50 Hz and 60 Hz with 50 ms settling 85 dB filter rejection of 50 Hz and 60 Hz with 50 ms settling User configurable input channels 8 fully differential channels or 16 single-ended channels Crosspoint multiplexer Channel scan data rate of 50 kSPS/channel (20 ìs settling) On-chip 2.5 V reference (±2 ppm/°C drift) True rail-to-rail analog and reference input buffers Internal or external clock Power supply: AVDD1 − AVSS = 5 V, AVDD2 = IOVDD = 2 V to 5 V (nominal) Split supply with AVDD1/AVSS at ±2.5 V ADC current: 8.4 mA Temperature range: −40°C to +105°C 3- or 4-wire serial digital interface (Schmitt trigger on SCLK) Serial port interface (SPI), QSPI, MICROWIRE, and DSP compatible

32-Bit, 10 kSPS, Sigma-Delta ADC with100 s Settling and True Rail-to-Rail Buffers Features: 32-bit data output Fast and flexible output rate: 5 SPS to 10 kSPS Channel scan data rate of 10 kSPS/channel (100 µs settling) Performance specifications 19.1 noise free bits at 10 kSPS 20.2 noise free bits at 2.5 kSPS 24.6 noise free bits at 5 SPS INL: ±1 ppm of FSR 85 dB filter rejection of 50 Hz and 60 Hz with 50 ms settling User configurable input channels 2 fully differential channels or 4 single-ended channels Crosspoint multiplexer On-chip 2.5 V reference (±2 ppm/°C drift) True rail-to-rail analog and reference input buffers Internal or external clock See data sheet for additional features

1 MSPS, 12-Bit, Simultaneous Sampling SAR ADC with PGA and Four Comparators Features: Dual simultaneous sampling 12-bit, 2-channel analog-to-digital converter (ADC) True differential analog inputs Programmable gain stage: ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, ×128 Throughput rate per ADC 1 MSPS for AD7262 500 kSPS for AD7262-5 Analog input impedance: >1 GΩ Wide input bandwidth −3 dB bandwidth: 1.7 MHz at gain = 2 4 on-chip comparators SNR: 73 dB typical at gain = 2, 66 dB typical at gain = 32 Device offset calibration, system gain calibration On-chip reference: 2.5 V −40°C to +105°C operation High speed serial interface SPI/QSPI™/MICROWIRE/DSP compatible 48-lead LFCSP and LQFP

Differential/Single-Ended Input, Dual 1 MSPS, 12-Bit, 3-Channel SAR A/D Converter Features: Dual 12-bit, 3-channel ADC Throughput rate: 1 MSPS Specified for VDD of 2.7 V to 5.25 V Power consumption 7 mW at 1 MSPS with 3 V supplies 17 mW at 1 MSPS with 5 V supplies Pin-configurable analog inputs 12-channel single-ended inputs 6-channel fully differential inputs 6-channel pseudo differential inputs 70 dB SINAD at 50 kHz input frequency Accurate on-chip reference: 2.5 V ±0.2% maximum at 25°C, 20 ppm/°C maximum Dual conversion with read 875 ns, 16 MHz SCLK High speed serial interface SPI®-/QSPI™-/MICROWIRE™-/DSP-compatible −40°C to +125°C operation Shutdown mode: 1 µA maximum 32-lead LFCSP and 32-lead TQFP

12-Bit Power Amplifier Current Controller with ADC, DACs, Temperature and Current Sensors Features: 4 closed-loop power amplifier (PA) drain current controllers Built-in PA protection, sequencing, and alert features Compatible with both depletion mode and enhancement mode power amplifiers Highly integrated 4 uncommitted 12-bit analog-to-digital converter (ADC) inputs ±0.5 LSB typical integral nonlinearity (INL) Eight 12-bit voltage digital-to-analog converters (DACs) 1.3 μs maximum settling 4 high-side current sense amplifiers, ±0.1% gain error 2 external temperature sensor inputs, ±1.1°C accuracy Internal temperature sensor, ±1.25°C accuracy 2.5 V on-chip reference Flexible monitoring and control ranges ADC input ranges: 0 V to 1.25 V, 0 V to 2.5 V, and 0 V to 5 V Bipolar DAC ranges: 0 V to +5 V, −4 V to +1 V, and −5 V to 0 V Bipolar DAC reset and clamping relative to VCLAMPx voltage Unipolar DAC ranges: 0 V to 5 V, 2.5 V to 7.5 V, and 5 V to 10 V Current sense gain: 6.25, 12.5, 25, 50, 100, and more Adjustable closed-loop setpoint ramp time High-side voltage current sensing 4 current sense inputs 4 V to AVSS + 60 V, ±200 mV input range Small package and flexible interface Serial port interface (SPI) with VDRIVE supporting 1.8 V, 3 V, and 5 V interfaces 56-lead LFCSP Temperature range: −40°C to +125°C

1 MSPS , 8-Channel, Software Selectable True Bipolar Input, 12-Bit Plus Sign A/D Converter Features: 12-Bit Plus Sign SAR ADC Accepts True Bipolar Analog Inputs Software Selectable input Ranges:  ±10V, ±5V, ±2.5V, 0 to 10 V Eight Analog Input Channels with Channel Sequencer Single Ended, True Differential and Pseudo Differential Analog Input Capability High Impedance Analog Inputs Low Power: 21 mW High Speed Serial Interface SPI/QSPI/DSP/MICROWIRE Compatible MuxOUT and ADCIN pins allows separate access to Mux and ADC iCMOS™ Process Technology 24 Lead TSSOP package

16-Bit, Isolated Sigma-Delta Modulator, LVDS Interface 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 LVDS interface On-board digital isolator On-board reference Full-scale analog input range: ±320 mV −40°C to + 125°C operating range High common-mode transient immunity: >25 kV/μs 16-lead, wide-body SOIC, with increased creepage package See data sheet for additional features