AD8223AR Equivalent & Substitute Parts

Part Overview

The AD8223AR is an instrumentation amplifier manufactured by Analog Devices Inc., featuring a single circuit with rail-to-rail output capability in an 8-SOIC surface mount package. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and production continuity. The AD8223AR operates across a 3V to 24V supply range with a slew rate of 0.3V/µs and -3dB bandwidth of 200 kHz, making it suitable for precision measurement and signal conditioning applications.

Substiute Parts

AD8223AR

Analog Devices Inc.In Stock: 723AD8223AR Datasheet

Current PartRFQ

AD8223ARZ

Analog Devices Inc.In Stock: 80623AD8223ARZ Datasheet

DirectRFQ

ADA4622-2ARZ

Analog Devices Inc.In Stock: 50318ADA4622-2ARZ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD8223AR is determined by electrical and mechanical compatibility across the following critical parameters: amplifier type, number of circuits, output type, supply voltage range, operating temperature range, package type, and physical dimensions. The AD8223AR operates as a single-circuit instrumentation amplifier with specific performance characteristics in slew rate, bandwidth, and input offset voltage.

Two substitute options are identified:

Direct Equivalent (AD8223ARZ): This substitute maintains identical electrical specifications and amplifier topology. The primary distinction is packaging format (tube versus reel) and product status (active versus obsolete). This substitute provides direct functional replacement with no design modifications required.

Similar Substitute (ADA4622-2ARZ): This substitute shares the same package type and mounting configuration but differs in amplifier topology (J-FET versus instrumentation), circuit count (2 versus 1), and performance characteristics. This substitute is applicable only when design requirements accommodate the specified parameter differences.

Parameter Comparison

Engineering Selection Recommendations

AD8223ARZ Selection: This part is the direct functional equivalent of the AD8223AR. It maintains identical electrical specifications, amplifier topology, and performance characteristics. The AD8223ARZ is classified as active product status with ROHS3 compliance and REACH unaffected designation, providing regulatory compliance for current manufacturing standards. This substitute requires no circuit design modifications and is suitable for direct replacement in existing applications.

ADA4622-2ARZ Selection: This part shares identical package dimensions and surface mount configuration but operates under different electrical parameters. The ADA4622-2ARZ features J-FET amplifier topology with dual circuits, significantly higher slew rate (23V/µs versus 0.3V/µs), and extended bandwidth (15.5 MHz versus 200 kHz). The minimum supply voltage requirement is 5V versus 3V for the AD8223AR. This substitute is applicable only when design specifications accommodate these parameter differences and the dual-circuit configuration is utilized or one circuit is left unused. The ADA4622-2ARZ is classified as active product status with ROHS3 compliance and REACH unaffected designation.

Frequently Asked Questions (FAQ)

Q: Can AD8223ARZ be used as a direct replacement for AD8223AR?

A: Yes. The AD8223ARZ provides direct functional replacement with identical electrical specifications, amplifier type, circuit count, and performance characteristics. The primary difference is packaging format and product status. No circuit design modifications are required.

Q: What are the key differences between AD8223AR and ADA4622-2ARZ?

A: The ADA4622-2ARZ differs in amplifier topology (J-FET versus instrumentation), circuit count (2 versus 1), slew rate (23V/µs versus 0.3V/µs), bandwidth (15.5 MHz versus 200 kHz), input bias current (2 pA versus 12 nA), and minimum supply voltage (5V versus 3V). These differences require design evaluation before substitution.

Q: Is the ADA4622-2ARZ suitable for applications requiring the AD8223AR specifications?

A: The ADA4622-2ARZ is suitable only when design requirements accommodate its higher performance characteristics and different amplifier topology. Applications requiring the specific instrumentation amplifier topology, lower slew rate, or 3V minimum supply voltage must use the AD8223ARZ instead.

Q: What is the package compatibility between these parts?

A: All three parts (AD8223AR, AD8223ARZ, and ADA4622-2ARZ) use identical 8-SOIC surface mount packages with 0.154" width and 3.90mm dimensions. Physical board layout compatibility is maintained across all three options.

Q: Are there compliance differences between the substitute parts?

A: The AD8223ARZ and ADA4622-2ARZ are both ROHS3 compliant and REACH unaffected. The AD8223AR product status is listed as obsolete. For new designs and manufacturing, the active status substitutes (AD8223ARZ or ADA4622-2ARZ) are recommended to ensure long-term supply availability and regulatory compliance.

Q: What is the operating temperature range difference?

A: The AD8223AR and AD8223ARZ operate across -40°C to 85°C. The ADA4622-2ARZ extends the upper operating temperature to 125°C, providing wider temperature range capability for applications requiring extended thermal performance.

Q: Can both circuits of the ADA4622-2ARZ be utilized in a single-circuit application?

A: Yes. The ADA4622-2ARZ contains two independent circuits. In applications requiring only one circuit, the second circuit can be configured as an additional amplifier stage or left unused depending on design requirements.