Precision, Dual-Channel Instrumentation Amplifier

The AD8222 is the first dual Instrumentation Amplifier in the small 4 mm 4 mm LFCSP. It requires the same board area as a typical single Instrumentation Amplifier The smaller package allows a 2 increase in channel density and a lower cost per channel, all with no compromise in performance.
The AD8222 CAN also be configured as a single-channel, differential output Instrumentation Amplifier Differential outputs provide high noise immunity, which CAN be useful when the output signal must travel through a noise environment, such as with remote Sensors The configuration CAN also be used to drive differential input ADCs
The AD8222 maintains a minimum CMRR of 80 dB to 4 kHz for all grades at G = 1. High CMRR over frequency allows the AD8222 to reject wideband interference and line harmonics, greatly simplifying Filter requirements. The AD8222 also has a typical CMRR drift over temperature of just 0.07 V/V/C at G = 1.
The AD8222 operates on both single and dual supplies and only requires 2.2 mA maximum supply current for both Amplifiers It is specified over the industrial temperature range of -40C to +85C and is fully RoHS compliant.
For a single-channel version, see the AD8221.
By Analog Devices, Inc.