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AD4021 - Differential SAR ADC

This page provides the datasheet information for the AD4021, a member of the AD4020 Differential SAR ADC family.

Datasheet Summary

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.

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-/.

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Datasheet preview – AD4021

Datasheet Details

Part number AD4021
Manufacturer Analog Devices
File Size 912.33 KB
Description Differential SAR ADC
Datasheet download datasheet AD4021 Datasheet
Additional preview pages of the AD4021 datasheet.

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Full PDF Text Transcription

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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.
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