AD8552ARU Equivalent & Substitute Parts

Part Overview

The AD8552ARU is a zero-drift operational amplifier manufactured by Analog Devices Inc., configured as a dual-channel (2 circuit) device in an 8-TSSOP surface mount package. This linear amplifier features rail-to-rail output capability and is designed for precision applications requiring minimal input offset voltage and low input bias current.

The AD8552ARU is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance of systems utilizing this component.

Substiute Parts

AD8552ARU

Analog Devices Inc.In Stock: 1397AD8552ARU Datasheet

Current PartRFQ

AD8552ARUZ

Analog Devices Inc.In Stock: 2030AD8552ARUZ Datasheet

DirectRFQ

AD8552ARUZ-REEL

Analog Devices Inc.In Stock: 2562AD8552ARUZ-REEL Datasheet

DirectRFQ

ADA4522-2ARMZ

Analog Devices Inc.In Stock: 23434ADA4522-2ARMZ Datasheet

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ADA4528-2ARMZ

Analog Devices Inc.In Stock: 6016ADA4528-2ARMZ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD8552ARU is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Amplifier type (zero-drift topology)
• Number of circuits (dual-channel configuration)
• Output type (rail-to-rail capability)
• Operating temperature range (-40°C to 125°C)
• Supply voltage span compatibility (minimum 2.7 V, maximum 5.5 V)
• Input offset voltage and input bias current specifications
• Slew rate and gain bandwidth product performance characteristics

Mechanical Compatibility Criteria:

• Package type (8-TSSOP or equivalent surface mount package)
• Mounting type (surface mount)
• Moisture sensitivity level (MSL 1)

Substitute parts are classified into two categories:

Direct Substitutes: Parts that maintain identical electrical specifications and package format, differing only in product status or packaging configuration (tube vs. reel).

Similar Substitutes: Parts that share the same amplifier topology, circuit count, and output type but operate within different electrical parameter ranges. These parts are compatible in applications where the enhanced or alternative specifications do not conflict with circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Identical Electrical Specifications):

The AD8552ARUZ and AD8552ARUZ-REEL are direct functional equivalents to the AD8552ARU. Both parts maintain identical electrical specifications, operating parameters, and performance characteristics. The primary differences are packaging configuration (tube vs. cut tape/reel) and product status (active vs. obsolete). Both direct substitutes are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. These parts are recommended as primary replacements for the obsolete AD8552ARU.

Similar Substitutes (Enhanced or Alternative Specifications):

The ADA4522-2ARMZ and ADA4528-2ARMZ are functionally similar zero-drift dual-channel amplifiers with rail-to-rail output. These parts share the same topology and circuit configuration but operate within different electrical parameter ranges.

The ADA4522-2ARMZ features enhanced slew rate (1.7 V/µs vs. 0.4 V/µs) and higher gain bandwidth product (2.7 MHz vs. 1.5 MHz), making it suitable for applications requiring faster signal response. However, it requires a minimum supply voltage of 4.5 V, which may not be compatible with systems designed for the 2.7 V minimum of the AD8552ARU. The ADA4522-2ARMZ is ROHS3 compliant and REACH unaffected.

The ADA4528-2ARMZ offers superior input offset voltage (0.3 µV vs. 1 µV) and the highest gain bandwidth product (3.4 MHz) among the alternatives. It maintains compatibility with the 2.7 V minimum supply voltage and operates within the same temperature range. Higher input bias current (125 pA vs. 10 pA) and increased supply current (1.5 mA vs. 850 µA per 2 channels) are design trade-offs. The ADA4528-2ARMZ is ROHS3 compliant and REACH unaffected.

All substitute parts are manufactured by Analog Devices Inc. and carry active product status, ensuring long-term availability and supply chain support.

Frequently Asked Questions (FAQ)

Q: Can AD8552ARUZ be used as a direct replacement for AD8552ARU?

A: Yes. The AD8552ARUZ is electrically and mechanically identical to the AD8552ARU. The primary difference is product status (active vs. obsolete) and packaging format (tube). Both parts share identical electrical specifications, package type (8-TSSOP), and operating parameters.

Q: What is the difference between AD8552ARUZ and AD8552ARUZ-REEL?

A: Both parts are electrically identical. The difference is packaging configuration: AD8552ARUZ is supplied in tube packaging, while AD8552ARUZ-REEL is supplied in cut tape and Digi-Reel format. Selection depends on assembly process requirements and quantity needs.

Q: Can ADA4522-2ARMZ replace AD8552ARU in all applications?

A: ADA4522-2ARMZ is functionally similar but not universally interchangeable. It requires a minimum supply voltage of 4.5 V, whereas AD8552ARU operates from 2.7 V. Applications designed for low-voltage operation (below 4.5 V) cannot use ADA4522-2ARMZ. The enhanced slew rate and bandwidth make it suitable for higher-speed applications within compatible voltage ranges.

Q: What are the key differences between ADA4528-2ARMZ and AD8552ARU?

A: ADA4528-2ARMZ offers lower input offset voltage (0.3 µV vs. 1 µV) and higher gain bandwidth product (3.4 MHz vs. 1.5 MHz). However, it has higher input bias current (125 pA vs. 10 pA) and increased supply current consumption (1.5 mA vs. 850 µA per 2 channels). Both parts support the same 2.7 V to 5.5 V supply range and operate across the same temperature range.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. All active substitute parts (AD8552ARUZ, AD8552ARUZ-REEL, ADA4522-2ARMZ, and ADA4528-2ARMZ) are ROHS3 compliant and REACH unaffected. The obsolete AD8552ARU does not carry these certifications in the provided data.

Q: What package types are available for these parts?

A: AD8552ARU, AD8552ARUZ, and AD8552ARUZ-REEL are supplied in 8-TSSOP packages (0.173", 4.40mm width). ADA4522-2ARMZ and ADA4528-2ARMZ are supplied in 8-MSOP packages (0.118", 3.00mm width). Both package types are surface mount configurations with identical pin counts and compatible pinouts for dual-channel amplifier applications.

Q: Which substitute part should be selected for precision, low-offset applications?

A: ADA4528-2ARMZ provides the lowest input offset voltage (0.3 µV) among all alternatives, making it the optimal choice for precision applications where offset voltage minimization is critical. It maintains compatibility with the 2.7 V to 5.5 V supply range of the original AD8552ARU.

Q: Can these parts be used interchangeably on the same PCB?

A: AD8552ARUZ and AD8552ARUZ-REEL can be used interchangeably with AD8552ARU without PCB modifications, as they share identical package and pinout specifications. ADA4522-2ARMZ and ADA4528-2ARMZ use 8-MSOP packages instead of 8-TSSOP, requiring PCB layout adjustments and footprint changes. Electrical parameter differences must also be evaluated for circuit compatibility.