AD736BRZ-RL

Overview

The AD736BRZ-RL is a low power, precision monolithic true RMS-to-DC converter manufactured by Analog Devices Inc. It operates within a wide supply voltage range of +2.8 V to -16.5 V and consumes a maximum supply current of 200 µA. The device features a buffered voltage output with no external trims required for specified accuracy. It is housed in an 8-pin SOIC package and supports industrial temperature operation from -40°C to +85°C.

Feature Summary

• Converts AC voltage waveforms to DC representing true RMS, average rectified, or absolute values
• Maintains high accuracy across diverse input waveforms including variable duty-cycle pulses
• Provides buffered voltage output eliminating the need for external trimming components

Applications

• Portable multimeters
• Battery-powered instrumentation
• Upgrading non-RMS precision rectifier performance

Procurement Notes

Verify the specific suffix RL indicates reel packaging when sourcing. Confirm the BRZ designation corresponds to the industrial temperature grade (-40°C to +85°C) rather than commercial variants. Ensure compatibility with the AD736-EVALZ development kit if prototyping is required.

Selection Notes

Select this component for applications requiring high accuracy with low power consumption. It serves as a direct replacement for non-RMS precision rectifiers where higher accuracy is needed at equal or lower cost. Consider the 200 mV RMS full-scale input range and verify signal crest factors do not exceed five.

Part Context

This part belongs to the AD736 series of true RMS-to-DC converters. It shares core functionality with the AD736JRZ but differs in operating temperature range and packaging configuration. The device is designed to replace discrete solutions offering superior precision without complex calibration.

Replacement Considerations

The AD737 is a related device featuring power-down control and negative output. Verify pinout compatibility and output polarity requirements before substituting.