AD4021, AD4020 Datasheet - Analog Devices

AD4021, AD4020, Differential SAR ADC

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 overvolt

Applications

* Automated test equipment Machine automation Medical equipment Battery-powered equipment Precision data acquisition systems Instrumentation and control systems FUNCTIONAL BLOCK DIAGRAM 2.5V TO 5V 1.8V VREF VREF/2 0 VREF VREF/2 0 10µF REF VDD AD4020/AD4021/AD4022 HIGH-Z MODE IN+ 20-BIT SAR ADC

AD4020-AnalogDevices.pdf