AD625AD Equivalent & Substitute Parts

Part Overview

The AD625AD is an instrumentation amplifier manufactured by Analog Devices Inc., featuring a single circuit configuration in a 16-CDIP package. This device is classified as obsolete, indicating discontinued production and limited availability through standard distribution channels. The AD625AD delivers a gain bandwidth product of 25 MHz with a slew rate of 5 V/µs, making it suitable for precision measurement and signal conditioning applications requiring low input offset voltage and low input bias current characteristics.

Due to its obsolete status, identifying equivalent substitute parts with matching electrical and mechanical specifications is essential for system design continuity and procurement planning.

Substiute Parts

AD625AD

Analog Devices Inc.In Stock: 2513AD625AD Datasheet

Current PartRFQ

AD625ADZ

Analog Devices Inc.In Stock: 1955AD625ADZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD625AD is determined by strict equivalence across all electrical performance parameters and mechanical compatibility criteria. The substitute part must satisfy the following requirements:

Electrical Parameter Equivalence:

• Amplifier type: Instrumentation
• Number of circuits: 1
• Slew rate: 5 V/µs
• Gain bandwidth product: 25 MHz
• -3dB bandwidth: 650 kHz
• Input bias current: 30 nA
• Input offset voltage: 50 µV
• Supply current: 3.5 mA
• Supply voltage range: 12 V to 36 V
• Operating temperature range: -40°C to 85°C

Mechanical Compatibility:

• Mounting type: Through Hole
• Package type: 16-CDIP (0.300", 7.62mm)

The AD625ADZ qualifies as a direct substitute based on complete alignment with all specified electrical and mechanical parameters. The primary distinction between the main part and substitute is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The AD625ADZ is the appropriate substitute for the obsolete AD625AD based on the following criteria:

Product Status Alignment: The AD625ADZ maintains active product status with Analog Devices Inc., ensuring continued availability and manufacturer support. This contrasts with the AD625AD's obsolete classification, which restricts procurement options and long-term supply chain reliability.

Regulatory Compliance: The AD625ADZ carries ROHS3 compliance certification and REACH unaffected status, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution. These certifications support compliance with modern procurement standards and regulatory frameworks.

Electrical and Mechanical Equivalence: All electrical parameters, including gain bandwidth product, slew rate, input offset voltage, input bias current, and supply voltage specifications, are identical between the two parts. The 16-CDIP through-hole package configuration is mechanically identical, enabling direct board-level substitution without design modification.

Base Product Number Continuity: Both parts share the AD625 base product number, confirming they are part of the same product family and design lineage.

Frequently Asked Questions (FAQ)

Q: Can the AD625ADZ be used as a direct replacement for the AD625AD in existing designs?

A: Yes. The AD625ADZ is electrically and mechanically equivalent to the AD625AD. All performance parameters, including gain bandwidth product, slew rate, input offset voltage, input bias current, and supply voltage specifications, are identical. The 16-CDIP through-hole package dimensions are the same, allowing direct substitution without circuit board modifications.

Q: What is the primary advantage of selecting the AD625ADZ over the AD625AD?

A: The AD625ADZ is an active product with current manufacturer support, whereas the AD625AD is obsolete. Active product status ensures reliable long-term availability, manufacturer technical support, and compliance with current regulatory standards including ROHS3 and REACH requirements.

Q: Are there any packaging differences between the AD625AD and AD625ADZ?

A: Both parts use the 16-CDIP (0.300", 7.62mm) package configuration for through-hole mounting. The primary packaging distinction is the supplier delivery format: the AD625ADZ is supplied in tube packaging, while the AD625AD packaging format is not specified in the available data.

Q: Do the AD625AD and AD625ADZ have identical electrical specifications?

A: Yes. Both parts have identical electrical specifications: 5 V/µs slew rate, 25 MHz gain bandwidth product, 650 kHz -3dB bandwidth, 30 nA input bias current, 50 µV input offset voltage, 3.5 mA supply current, and 12 V to 36 V supply voltage range. Operating temperature range is -40°C to 85°C for both parts.

Q: What regulatory certifications does the AD625ADZ carry?

A: The AD625ADZ is ROHS3 compliant and REACH unaffected. These certifications confirm compliance with current environmental and chemical substance regulations applicable to electronic components.

Q: Is the AD625ADZ suitable for new design implementations?

A: Yes. The AD625ADZ is an active product with current manufacturer support, making it appropriate for new designs requiring an instrumentation amplifier with the specified electrical and mechanical characteristics.