AD736JR RMS to DC Converter Equivalent & Substitute Parts

Part Overview

The AD736JR is an RMS to DC converter integrated circuit manufactured by Analog Devices Inc., designed for precision AC signal measurement and conversion applications. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The AD736JR operates in the 8-SOIC surface mount package and supports dual supply voltage configurations (±2.8V to ±16.5V), making it suitable for portable and industrial measurement systems.

Substiute Parts

AD736JR

Analog Devices Inc.In Stock: 100548AD736JR Datasheet

Current PartRFQ

AD736JRZ

Analog Devices Inc.In Stock: 3139AD736JRZ Datasheet

DirectRFQ

AD8436BRQZ

Analog Devices Inc.In Stock: 2384AD8436BRQZ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AD736JR is determined by functional equivalence and compatibility across the following critical parameters: RMS to DC conversion functionality, surface mount package compatibility, supply voltage range, supply current specifications, and moisture sensitivity rating. The substitute parts are grouped into two categories based on their relationship to the main part:

Direct Equivalent (Pin and Functional Compatible): AD736JRZ maintains identical electrical specifications, package dimensions, and functional performance as the AD736JR. This part differs only in packaging format (Tube vs. standard packaging) and product status (Active vs. Obsolete), making it the primary direct replacement.

Similar Functional Alternative (Different Package): AD8436BRQZ provides RMS to DC conversion functionality within the same product family but utilizes a 20-QSOP package instead of 8-SOIC. This part accommodates higher supply current requirements (325 µA vs. 160 µA) and extended voltage range (±2.4V ~ 18V, 4.8V ~ 36V), requiring PCB layout redesign but offering enhanced performance specifications.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: Select AD736JRZ when maintaining existing PCB layouts and electrical specifications. This part is functionally and pin-compatible with the AD736JR, with the advantage of Active product status ensuring long-term availability and supply chain stability. ROHS3 compliance and REACH unaffected status provide regulatory alignment for current manufacturing standards.

For Enhanced Performance Applications: Select AD8436BRQZ when design requirements permit package migration from 8-SOIC to 20-QSOP. This alternative accommodates higher supply current demands and extended voltage operating ranges, suitable for applications requiring greater headroom or wider input signal ranges. PCB redesign is required due to different package footprint and pin configuration.

Compliance Consideration: Both substitute parts carry ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. The AD736JR's compliance status is not specified; verification against your specific regulatory requirements is necessary before final component selection.

Frequently Asked Questions (FAQ)

Q: Can AD736JRZ be used as a direct drop-in replacement for AD736JR? A: Yes. AD736JRZ is functionally and pin-compatible with AD736JR, maintaining identical supply current (160 µA), voltage range (2.8V, -3.2V ~ ±16.5V), and 8-SOIC package specifications. No circuit modifications are required.

Q: What is the primary difference between AD736JRZ and AD736JR? A: The primary differences are product status (Active vs. Obsolete) and packaging format (Tube vs. standard). Electrical and functional specifications are identical.

Q: When should AD8436BRQZ be selected instead of AD736JRZ? A: AD8436BRQZ is selected when applications require higher supply current capacity (325 µA vs. 160 µA) or extended voltage operating range (±2.4V ~ 18V, 4.8V ~ 36V vs. 2.8V, -3.2V ~ ±16.5V). This substitution requires PCB layout redesign due to package change from 8-SOIC to 20-QSOP.

Q: Are all substitute parts manufactured by Analog Devices Inc.? A: Yes. All parts listed—AD736JR, AD736JRZ, and AD8436BRQZ—are manufactured by Analog Devices Inc., ensuring consistent quality and technical support.

Q: What is the moisture sensitivity level for these parts? A: All parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly.

Q: Do the substitute parts meet current environmental regulations? A: AD736JRZ and AD8436BRQZ are ROHS3 compliant and REACH unaffected. The AD736JR's compliance status is not specified in available documentation.