AD8222
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AD8222

Precision, Dual-Channel Instrumentation Amplifier

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Part Details
Part Models 12
1ku List Price Starting From $4.39
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
Additional Details
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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.

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 noisy environment, such as with remote sensors. The configuration can also be used to drive differential input analog-to-digital converters (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 µV/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 −40°C to +85°C and is fully RoHS compliant.

For a single-channel version, see the AD8221.

Applications

  • Multichannel data acquisition for
    • ECG and medical instrumentation
    • Industrial process controls
    • Wheatstone bridge sensors
  • Differential drives for
    • High resolution input ADCs
    • Remote sensors
Part Models 12
1ku List Price Starting From $4.39

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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AD8222HACPZ-R7
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Product Lifecycle

PCN

May 5, 2014

- 14_0020

Conversion of 4x4mm body Size LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to Amkor Philippines.

AD8222ACPZ-R7

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AD8222ACPZ-RL

PRODUCTION

AD8222ACPZ-WP

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AD8222BCPZ-R7

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AD8222BCPZ-RL

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AD8222BCPZ-WP

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AD8222HACPZ-R7

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AD8222HACPZ-RL

PRODUCTION

AD8222HACPZ-WP

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AD8222HBCPZ-R7

PRODUCTION

AD8222HBCPZ-RL

PRODUCTION

AD8222HBCPZ-WP

PRODUCTION

Feb 15, 2010

- 07_0061

LFCSP Package Manufacturing Line Transfer from Amkor Korea to Amkor PRC

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

May 5, 2014

- 14_0020

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Conversion of 4x4mm body Size LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to Amkor Philippines.

AD8222ACPZ-R7

PRODUCTION

AD8222ACPZ-RL

PRODUCTION

AD8222ACPZ-WP

PRODUCTION

AD8222BCPZ-R7

PRODUCTION

AD8222BCPZ-RL

PRODUCTION

AD8222BCPZ-WP

PRODUCTION

AD8222HACPZ-R7

PRODUCTION

AD8222HACPZ-RL

PRODUCTION

AD8222HACPZ-WP

PRODUCTION

AD8222HBCPZ-R7

PRODUCTION

AD8222HBCPZ-RL

PRODUCTION

AD8222HBCPZ-WP

PRODUCTION

Feb 15, 2010

- 07_0061

arrow down

LFCSP Package Manufacturing Line Transfer from Amkor Korea to Amkor PRC

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

EVAL-AD8222

AD8222 Evaluation Board

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EVAL-AD8222

AD8222 Evaluation Board

AD8222 Evaluation Board

Product Detail

The AD8222-EVALZ has two AD8222 instrumentation amplifier circuits. One circuit is configured for dual-channel operation, while the other is configured for single-channel, differential output operation. Inputs, outputs, references, and the supplies are routed to screw terminals for easy connectivity. See the AD8222-EVALZ data sheet for further details.


Tools & Simulations

Tools & Simulations 4

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

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