GENERAL DESCRIPTION

The AD8222 is a dual-channel, high performance instrumentation amplifier that requires only one external resistor per amplifier to set gains of 1 to 10,000.

The AD8222 is the first dual-instrumentation amplifier in the small 4 mm × 4mm 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.

FEATURES

Two channels in small 4 mm × 4 mm LFCSP

Gain set with 1 resistor per amplifier (G = 1 to 10,000)

Low noise

8 nV/√Hz at 1 kHz

0.25 µV p-p (0.1 Hz to 10 Hz)

High accuracy dc performance (B grade)

60 µV maximum input offset voltage

0.3 µV/°C maximum input offset drift

1.0 nA maximum input bias current

126 dB minimum CMRR (G = 100)

Excellent ac performance

140 kHz bandwidth (G = 100)

13 µs settling time to 0.001

Differential output option (single channel)

Fully specified

Adjustable common-mode output

Supply range: ±2.3 V to ±18 V

APPLICATIONS

Multichannel data acquisition for

ECG and medical instrumentation

Industrial process controls

Wheatstone bridge sensors

Differential drives for

High resolution input ADCs

Remote sensors

参考价格：15.6158

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