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AD4022 - Differential SAR ADC

Download the AD4022 datasheet PDF. This datasheet also covers the AD4020 variant, as both devices belong to the same differential sar adc family and are provided as variant models within a single manufacturer datasheet.

General Description

The AD4020/AD4021/AD4022 are high accuracy, high speed, low power, 20-bit, Easy Drive, precision successive approximation register (SAR) analog-to-digital converters (ADCs) that operate from a single power supply, VDD.

Key Features

  • Easy Drive Greatly reduced input kickback Input current reduced to 0.5 μA/MSPS Enhanced acquisition phase, ≥77% of cycle time at 1 MSPS First conversion accurate, no latency or pipeline delay Input span compression for single-supply operation Fast conversion allows low SPI clock rates Input overvoltage clamp protection sinks up to 50 mA SPI-/QSPI-/.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (AD4020-AnalogDevices.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Analog Devices

Part Number Description
AD4020 Differential SAR ADC
AD4021 Differential SAR ADC
AD4000 SAR ADC
AD4001 Differential SAR ADCs
AD4002 SAR ADCs

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Data Sheet 20-Bit, 1.8 MSPS/1 MSPS/500 kSPS, Easy Drive, Differential SAR ADCs AD4020/AD4021/AD4022 FEATURES Easy Drive Greatly reduced input kickback Input current reduced to 0.5 μA/MSPS Enhanced acquisition phase, ≥77% of cycle time at 1 MSPS First conversion accurate, no latency or pipeline delay Input span compression for single-supply operation Fast conversion allows low SPI clock rates Input overvoltage clamp protection sinks up to 50 mA SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface High performance Differential analog input range: ±VREF, VREF from 2.4 V to 5.1 V Throughput: 1.8 MSPS/1 MSPS/500 kSPS options INL: ±3.1 ppm maximum Guaranteed 20-bit, no missing codes SNR: 100.