AD620SQ/883B Equivalent & Substitute Parts

Part Overview

The AD620SQ/883B is an instrumentation amplifier manufactured by Analog Devices Inc., designed for precision signal conditioning applications. This single-circuit device operates across a wide supply voltage range and delivers low input offset voltage with minimal input bias current. The part is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and functional characteristics are required while accommodating different packaging formats or operating temperature ranges.

Substiute Parts

AD620SQ/883B

Analog Devices Inc.In Stock: 17383AD620SQ/883B Datasheet

Current PartRFQ

AD620BNZ

Analog Devices Inc.In Stock: 1784AD620BNZ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD620SQ/883B is determined by equivalence in the following critical parameters: amplifier type (instrumentation), number of circuits (1), slew rate (1.2 V/µs), bandwidth (-3dB at 1 MHz), input bias current (500 pA), supply current (900 µA), output current capability (18 mA), and supply voltage range (4.6 V to 36 V minimum and maximum). The substitute part AD620BNZ maintains these core electrical specifications while differing in package format (8-PDIP versus 8-CDIP), input offset voltage specification (15 µV versus 30 µV), and operating temperature range (-40°C to 85°C versus -55°C to 125°C). Both parts share the same base product number (AD620), manufacturer (Analog Devices Inc.), and compliance certifications (RoHS3, REACH Unaffected).

Parameter Comparison

Engineering Selection Recommendations

Both the AD620SQ/883B and AD620BNZ are Active products manufactured by Analog Devices Inc. and maintain full RoHS3 compliance and REACH Unaffected status. The AD620SQ/883B operates across an extended temperature range (-55°C to 125°C) and is packaged in 8-CDIP ceramic format. The AD620BNZ operates within a standard industrial temperature range (-40°C to 85°C) and is packaged in 8-PDIP plastic format. Selection between these parts depends on application requirements for operating temperature range and package material specifications. Both parts deliver identical core amplifier performance in terms of bandwidth, slew rate, supply current, and output current capability. The AD620BNZ provides superior input offset voltage specification (15 µV) compared to the AD620SQ/883B (30 µV).

Frequently Asked Questions (FAQ)

Q: Can AD620BNZ replace AD620SQ/883B in all applications?

A: Substitution is valid when the application operating temperature range does not exceed -40°C to 85°C. The AD620SQ/883B supports extended temperature operation to -55°C and 125°C. Additionally, the package format differs (8-PDIP plastic versus 8-CDIP ceramic), which may affect thermal and mechanical considerations in specific board designs.

Q: What is the difference between 8-CDIP and 8-DIP packaging?

A: The AD620SQ/883B uses 8-CDIP (ceramic dual in-line package), while the AD620BNZ uses 8-DIP (plastic dual in-line package). Both maintain 0.300" (7.62mm) pitch and through-hole mounting compatibility. Ceramic packages provide superior thermal performance and hermeticity, while plastic packages are suitable for standard industrial applications.

Q: Are the electrical specifications identical between these parts?

A: Core electrical specifications are equivalent with one exception: input offset voltage is specified at 30 µV for AD620SQ/883B and 15 µV for AD620BNZ. All other parameters including slew rate, bandwidth, input bias current, supply current, output current, and supply voltage range are identical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both AD620SQ/883B and AD620BNZ are RoHS3 compliant, REACH Unaffected, and classified as Active products by Analog Devices Inc. Moisture sensitivity level is 1 (Unlimited) for both parts.

Q: What determines whether a substitute part is acceptable?

A: Substitution is determined by equivalence in amplifier type, circuit count, slew rate, bandwidth, input bias current, supply current, output current capability, and supply voltage range. Operating temperature range and package format are secondary considerations that depend on specific application requirements.