AD604AR Variable Gain Amplifier Equivalent & Substitute Parts

Part Overview

The AD604AR is a variable gain amplifier integrated circuit manufactured by Analog Devices Inc., featuring two independent gain circuits in a 24-SOIC surface mount package. This device is classified as obsolete, which necessitates identification of equivalent substitute components for ongoing design support and procurement requirements. The AD604AR operates across a -40°C to 85°C temperature range and is suitable for applications requiring adjustable gain amplification with specified bandwidth and slew rate characteristics.

Substiute Parts

AD604AR

Analog Devices Inc.In Stock: 1718AD604AR Datasheet

Current PartRFQ

AD604ARZ

Analog Devices Inc.In Stock: 4252AD604ARZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD604AR is determined by strict equivalence across all electrical and mechanical parameters. The primary substitution criterion is functional compatibility, which requires identical specifications for amplifier type, circuit count, slew rate, bandwidth, bias current, input offset voltage, supply current, output current capability, supply voltage, operating temperature range, and package configuration.

The AD604ARZ qualifies as a direct substitute based on the following key parameters:

• Amplifier Type: Variable Gain (identical)
• Number of Circuits: 2 (identical)
• Slew Rate: 170 V/µs (identical)
• -3dB Bandwidth: 40 MHz (identical)
• Current - Input Bias: 400 nA (identical)
• Voltage - Input Offset: 30 mV (identical)
• Current - Supply: 32 mA (identical)
• Current - Output / Channel: 40 mA (identical)
• Voltage - Supply Span: 5 V (identical)
• Operating Temperature Range: -40°C to 85°C (identical)
• Package / Case: 24-SOIC (0.295", 7.50mm Width) (identical)
• Mounting Type: Surface Mount (identical)
• Moisture Sensitivity Level: 3 (168 Hours) (identical)

Parameter Comparison

Engineering Selection Recommendations

The AD604ARZ is the direct functional equivalent of the AD604AR. All electrical and mechanical parameters are identical, ensuring pin-for-pin and functional compatibility. The primary distinction between these components is product status and compliance certifications.

The AD604AR is classified as obsolete, whereas the AD604ARZ maintains active product status. This status difference is significant for long-term supply chain planning and component availability. The AD604ARZ is supplied in tube packaging and carries ROHS3 compliance and REACH unaffected status, providing enhanced environmental and regulatory alignment with current manufacturing standards.

For applications currently utilizing the AD604AR, the AD604ARZ provides a direct replacement without circuit redesign or performance modification. The identical electrical specifications, operating temperature range, and 24-SOIC package configuration ensure seamless integration into existing designs.

Frequently Asked Questions (FAQ)

Q: Can the AD604ARZ directly replace the AD604AR in existing designs?

A: Yes. The AD604ARZ is electrically and mechanically identical to the AD604AR. All functional parameters, including slew rate, bandwidth, bias current, input offset voltage, supply current, output current, supply voltage, operating temperature range, and package configuration are equivalent. No circuit modifications are required.

Q: What is the primary difference between the AD604AR and AD604ARZ?

A: The AD604AR is classified as obsolete, while the AD604ARZ maintains active product status. The AD604ARZ is supplied in tube packaging and includes ROHS3 compliance and REACH unaffected certifications. Electrical and mechanical specifications are identical.

Q: Are there any package compatibility concerns when substituting the AD604ARZ for the AD604AR?

A: No. Both components use the 24-SOIC (0.295", 7.50mm Width) surface mount package. Pin configuration, footprint, and mounting requirements are identical. Standard PCB assembly processes for surface mount components apply to both parts.

Q: What is the moisture sensitivity level for both components?

A: Both the AD604AR and AD604ARZ have a Moisture Sensitivity Level (MSL) of 3, with a floor life of 168 hours. Standard moisture control procedures for MSL 3 components apply to both parts during storage and handling.

Q: Does the AD604ARZ meet current environmental compliance standards?

A: The AD604ARZ is ROHS3 compliant and REACH unaffected. These certifications indicate compliance with current environmental and regulatory requirements for electronic components in the European Union and related markets.

Q: What is the supply current specification for these components?

A: Both the AD604AR and AD604ARZ have a supply current specification of 32 mA. Output current per channel is rated at 40 mA.

Q: Are both components suitable for the same operating temperature range?

A: Yes. Both the AD604AR and AD604ARZ operate across the identical temperature range of -40°C to 85°C, ensuring compatibility for applications with equivalent thermal requirements.