AD603AR Variable Gain Amplifier Equivalent & Substitute Parts

Part Overview

The AD603AR is a variable gain amplifier integrated circuit manufactured by Analog Devices Inc., designed for linear amplification applications requiring adjustable gain control. This device is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. The AD603AR operates as a single-circuit variable gain amplifier in an 8-SOIC surface mount package, delivering 90 MHz bandwidth with a slew rate of 275V/µs.

Substiute Parts

AD603AR

Analog Devices Inc.In Stock: 16884AD603AR Datasheet

Current PartRFQ

AD603ARZ

Analog Devices Inc.In Stock: 18631AD603ARZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD603AR is determined by electrical and mechanical parameter equivalence within the variable gain amplifier category. The primary substitution candidate, AD603ARZ, maintains identical electrical specifications across all critical parameters: amplifier type, circuit count, slew rate, bandwidth, bias current, supply current, output current, supply voltage range, and operating temperature. Both parts utilize the same 8-SOIC package with identical physical dimensions and mounting characteristics.

The substitution logic is based on the following key parameters:

• Amplifier Type: Variable Gain (identical)
• Number of Circuits: 1 (identical)
• Slew Rate: 275 V/µs (identical)
• -3dB Bandwidth: 90 MHz (identical)
• Supply Voltage Range: 9.5 V to 12.6 V (identical)
• Operating Temperature: -40°C to 85°C (identical)
• Package / Case: 8-SOIC (identical)

The primary distinction between these parts is product status and packaging format, with AD603ARZ classified as active and supplied in tube packaging, whereas AD603AR is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The AD603ARZ is the direct substitute for the AD603AR based on complete electrical and mechanical parameter equivalence. Selection of AD603ARZ is appropriate for all applications currently using or designed for the AD603AR.

The AD603ARZ offers the following advantages for component selection:

• Active product status ensures ongoing availability and manufacturer support
• ROHS3 compliance satisfies environmental and regulatory requirements for new designs
• REACH unaffected status confirms compliance with chemical substance regulations
• Tube packaging provides standard handling and storage compatibility
• Identical electrical performance across all specified parameters

The obsolete status of AD603AR necessitates transition to AD603ARZ for new production and design implementations. Both parts share the same base product number (AD603) and are manufactured by Analog Devices Inc., confirming direct equivalence.

Frequently Asked Questions (FAQ)

Q: Can AD603ARZ directly replace AD603AR in existing designs?

A: Yes. The AD603ARZ is electrically and mechanically identical to the AD603AR across all specified parameters, including slew rate, bandwidth, supply voltage range, operating temperature, and 8-SOIC package dimensions. Direct substitution is supported without circuit modification.

Q: What is the primary reason for substituting AD603AR?

A: The AD603AR is classified as obsolete. The AD603ARZ is the active equivalent part from Analog Devices Inc., ensuring continued availability for production and new designs.

Q: Are there packaging differences between AD603AR and AD603ARZ?

A: The AD603ARZ is supplied in tube packaging, while the AD603AR packaging format is not specified. Both parts use the identical 8-SOIC (0.154", 3.90mm Width) surface mount package. Tube packaging is standard for active production parts and does not affect electrical performance or board-level compatibility.

Q: Does AD603ARZ meet environmental compliance requirements?

A: Yes. The AD603ARZ is ROHS3 compliant and REACH unaffected, satisfying current environmental and chemical substance regulations. Compliance status for the obsolete AD603AR is not specified.

Q: Are the electrical specifications identical between these parts?

A: Yes. Both parts share identical specifications for slew rate (275 V/µs), bandwidth (90 MHz), input bias current (200 nA), supply current (12.5 mA), output current (50 mA), supply voltage range (9.5 V to 12.6 V), and operating temperature range (-40°C to 85°C).

Q: What is the moisture sensitivity level for these parts?

A: Both AD603AR and AD603ARZ have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.

Q: Are both parts in the same product series?

A: Yes. Both parts belong to the X-AMP® series from Analog Devices Inc. and share the base product number AD603.