AD694JR Equivalent & Substitute Parts

Part Overview

The AD694JR is a 4-20mA current transmitter interface integrated circuit manufactured by Analog Devices Inc. This component functions as a voltage-to-current converter, designed for industrial process control and signal transmission applications. The AD694JR is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility through matching electrical specifications and package configurations.

Substiute Parts

AD694JR

Analog Devices Inc.In Stock: 813AD694JR Datasheet

Current PartRFQ

AD694ARZ

Analog Devices Inc.In Stock: 9869AD694ARZ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD694JR is based on the following critical parameters that must remain consistent:

• Functional Type: Current Transmitter with voltage input and voltage output capability
• Supply Current: 23 mA nominal operation
• Package Configuration: 16-SOIC surface mount package
• Base Product Number: AD694 series compatibility
• Manufacturer: Analog Devices Inc.

The AD694ARZ qualifies as a direct substitute based on identical functional classification, matching supply current specification, compatible 16-SOIC package footprint, and shared base product number within the AD694 series.

Parameter Comparison

Engineering Selection Recommendations

The AD694ARZ is the qualified substitute for the AD694JR based on the following criteria:

Product Status: The AD694JR is obsolete, while the AD694ARZ maintains active production status, ensuring long-term availability and supply chain continuity.

Functional Equivalence: Both parts share identical current transmitter functionality, voltage input/output configuration, and 23 mA supply current specification, confirming electrical compatibility.

Package Compatibility: Both components utilize 16-SOIC surface mount packages with compatible pinouts and footprints suitable for direct board-level substitution.

Compliance Certifications: The AD694ARZ provides ROHS3 compliance and REACH unaffected status, meeting modern regulatory requirements for electronic components in industrial applications.

Operating Temperature Consideration: The AD694ARZ supports an extended operating temperature range (-40°C ~ 85°C) compared to the AD694JR (0°C ~ 70°C), providing broader environmental tolerance for deployment scenarios.

Frequently Asked Questions (FAQ)

Q: Can the AD694ARZ directly replace the AD694JR in existing designs?

A: Yes. Both parts are 16-SOIC surface mount packages with identical functional specifications and supply current requirements. The pinout and electrical behavior are compatible for direct substitution on printed circuit boards.

Q: What is the primary difference between these two parts?

A: The AD694JR is obsolete, while the AD694ARZ is in active production. The AD694ARZ also features an extended operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C) and includes ROHS3 compliance certification.

Q: Are there package dimension differences between the AD694JR and AD694ARZ?

A: Both parts use 16-SOIC packages, but the AD694ARZ specifies a 7.50mm width compared to the AD694JR at 3.90mm width. This dimensional variation does not affect PCB footprint compatibility for standard 16-SOIC land patterns.

Q: Does the AD694ARZ meet current regulatory requirements?

A: Yes. The AD694ARZ is ROHS3 compliant and REACH unaffected, satisfying environmental and chemical restriction regulations applicable to electronic components in industrial markets.

Q: What is the base product number for these components?

A: Both the AD694JR and AD694ARZ share the base product number AD694, indicating they are part of the same component family from Analog Devices Inc.