AD8223AR-R7 Equivalent & Substitute Parts

Part Overview

The AD8223AR-R7 is an instrumentation amplifier manufactured by Analog Devices Inc., featuring a single circuit configuration 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 support and procurement continuity. The AD8223AR-R7 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-R7

Analog Devices Inc.In Stock: 776AD8223AR-R7 Datasheet

Current PartRFQ

AD8223ARZ-R7

Analog Devices Inc.In Stock: 2564AD8223ARZ-R7 Datasheet

DirectRFQ

ADA4622-2ARZ-RL

Analog Devices Inc.In Stock: 7731ADA4622-2ARZ-RL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD8223AR-R7 is determined by electrical and mechanical compatibility across the following critical parameters: amplifier type, number of circuits, output type, package configuration, mounting type, supply voltage range, and operating temperature span. The substitute parts are grouped into two categories based on their substitution relationship to the main part.

Direct Equivalent Substitutes maintain identical electrical specifications and amplifier topology, differing only in product status and packaging format. These parts are pin-compatible and functionally interchangeable without circuit modification.

Similar Functional Substitutes share the same package and mounting type but differ in amplifier topology, circuit count, and electrical performance characteristics. These parts require circuit-level evaluation to determine suitability for specific applications.

The key parameters governing substitution eligibility are:

• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Output Type: Rail-to-Rail
• Voltage - Supply Span: Minimum 3V, Maximum 24V
• Operating Temperature: -40°C ~ 85°C

Parameter Comparison

Engineering Selection Recommendations

AD8223ARZ-R7 is the direct equivalent substitute for the AD8223AR-R7. This part maintains identical electrical specifications and amplifier topology while offering active product status. The AD8223ARZ-R7 is ROHS3 compliant and REACH unaffected, providing regulatory compliance advantages over the obsolete main part. The primary difference is packaging format (Cut Tape & Digi-Reel versus unspecified packaging for the main part). This substitute is suitable for direct replacement in existing designs without circuit modification.

ADA4622-2ARZ-RL is a similar functional substitute that shares the same 8-SOIC package and surface mount configuration. However, this part differs fundamentally in amplifier topology (J-FET versus Instrumentation), circuit count (2 circuits versus 1 circuit), and electrical performance. The ADA4622-2ARZ-RL exhibits superior slew rate (23V/µs versus 0.3V/µs), bandwidth (15.5 MHz versus 200 kHz), and input bias current (2 pA versus 12 nA). The minimum supply voltage requirement is 5V, which exceeds the 3V minimum of the AD8223AR-R7. This substitute is applicable only in applications where the enhanced performance characteristics and dual-circuit configuration provide functional benefit, and where the 5V minimum supply voltage is compatible with the system design.

Both substitute parts are manufactured by Analog Devices Inc. and maintain the same ECCN and HTSUS classifications as the main part.

Frequently Asked Questions (FAQ)

Q: Can the AD8223ARZ-R7 be used as a direct replacement for the AD8223AR-R7?

A: Yes. The AD8223ARZ-R7 is a direct equivalent substitute with identical electrical specifications, amplifier type, circuit count, and package configuration. The parts are pin-compatible and functionally interchangeable. The primary advantage of the AD8223ARZ-R7 is its active product status and regulatory compliance certifications (ROHS3, REACH).

Q: What are the key differences between the AD8223AR-R7 and the ADA4622-2ARZ-RL?

A: The ADA4622-2ARZ-RL differs in four critical areas: (1) amplifier topology (J-FET versus Instrumentation), (2) circuit count (2 circuits versus 1 circuit), (3) electrical performance (slew rate of 23V/µs versus 0.3V/µs, bandwidth of 15.5 MHz versus 200 kHz), and (4) minimum supply voltage (5V versus 3V). These differences require circuit-level evaluation for compatibility.

Q: Is the ADA4622-2ARZ-RL suitable for all applications using the AD8223AR-R7?

A: No. The ADA4622-2ARZ-RL is a similar functional substitute, not a direct equivalent. Suitability depends on application-specific requirements for slew rate, bandwidth, input bias current, and minimum supply voltage. The 5V minimum supply voltage requirement may be incompatible with systems designed for 3V operation.

Q: Are all substitute parts available in the same packaging format?

A: No. The AD8223AR-R7 packaging format is unspecified in the provided data. The AD8223ARZ-R7 is available in Cut Tape (CT) & Digi-Reel® packaging. The ADA4622-2ARZ-RL is available in Tape & Reel (TR) packaging. Packaging format selection depends on procurement and assembly requirements.

Q: Do the substitute parts meet the same regulatory requirements as the AD8223AR-R7?

A: The AD8223ARZ-R7 and ADA4622-2ARZ-RL are both ROHS3 compliant and REACH unaffected. Regulatory compliance status for the obsolete AD8223AR-R7 is not specified in the provided data. Both active substitutes meet current regulatory standards.

Q: What is the operating temperature range difference between the main part and substitutes?

A: The AD8223AR-R7 and AD8223ARZ-R7 operate across -40°C to 85°C. The ADA4622-2ARZ-RL extends the upper temperature limit to 125°C, providing a wider operating temperature range suitable for high-temperature applications.

Q: Can the AD8223ARZ-R7 be used in designs originally specified for the AD8223AR-R7?

A: Yes. The AD8223ARZ-R7 maintains identical electrical and mechanical specifications, making it suitable for direct substitution in existing designs without modification to circuit topology, component values, or PCB layout.