AD654JR Equivalent & Substitute Parts

Part Overview

The AD654JR is a Voltage to Frequency Converter IC manufactured by Analog Devices Inc., designed for 500 kHz operation with ±0.2% linearity. This component operates in the Power Management (PMIC) category and is housed in an 8-SOIC surface mount package.

The AD654JR is classified as Obsolete. Locating equivalent or substitute parts is necessary for ongoing production support, design updates, or when original inventory becomes unavailable. The AD654JRZ provides a direct functional alternative with identical electrical specifications and improved product status.

Substiute Parts

AD654JR

Analog Devices Inc.In Stock: 1692AD654JR Datasheet

Current PartRFQ

AD654JRZ

Analog Devices Inc.In Stock: 6442AD654JRZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AD654JR is determined by strict equivalence across the following critical parameters:

• Frequency - Max: 500 kHz
• Linearity: ±0.2%
• Full Scale Temperature Coefficient: ±50 ppm/°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Moisture Sensitivity Level: 1 (Unlimited)

The AD654JRZ meets all these requirements and is manufactured by the same supplier (Analog Devices Inc.) under the same base product number (AD654). The substitute differs only in packaging format (Tube vs. unspecified for the main part) and product status (Active vs. Obsolete), with no impact on electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The AD654JRZ is the direct substitute for the AD654JR. Both components share identical electrical and mechanical specifications, including frequency range, linearity, temperature coefficient, and package dimensions. The primary distinction is product status: the AD654JRZ is Active, whereas the AD654JR is Obsolete.

For new designs or production continuity, the AD654JRZ is the appropriate selection. The Active status ensures ongoing manufacturer support and availability. Both parts carry identical compliance classifications (ECCN: EAR99, HTSUS: 8542.39.0001) and MSL ratings, confirming full compatibility in handling and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can the AD654JRZ directly replace the AD654JR in existing designs?

A: Yes. The AD654JRZ is electrically and mechanically identical to the AD654JR. All critical parameters—frequency range, linearity, temperature coefficient, and package dimensions—are equivalent. Direct substitution is possible without circuit modification.

Q: What is the difference between AD654JR and AD654JRZ?

A: The components are functionally identical. The primary differences are packaging format (Tube for AD654JRZ) and product status (Active for AD654JRZ vs. Obsolete for AD654JR). These differences do not affect electrical performance or mechanical fit.

Q: Why is the AD654JR listed as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production and support for this specific part number. The AD654JRZ, sharing the same base product number (AD654), represents the current active equivalent.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts carry identical ECCN (EAR99), HTSUS (8542.39.0001), and MSL (1 - Unlimited) classifications. Compliance and handling requirements are equivalent.

Q: What is the 8-SOIC package specification?

A: The 8-SOIC package is a surface mount configuration with 0.154 inches (3.90mm) width. This specification is identical for both the AD654JR and AD654JRZ, ensuring PCB footprint compatibility.