AD736KRZ-RL

Overview

The AD736KRZ-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 -3.2 V minimum and ±16.5 V maximum. The device features a maximum supply current of 200 µA and supports an output current of 2 mA. It is housed in an SOIC-8 surface-mount package and functions across a commercial temperature range from 0°C to +70°C.

Feature Summary

• Converts AC voltage waveforms to DC representing true RMS, average rectified, or absolute values
• Maintains high accuracy for diverse input signals including variable duty-cycle pulses and phase-controlled sine waves
• Provides buffered voltage output without requiring external trimming for specified precision

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 KRZ designation corresponds to the commercial temperature grade (0°C to +70°C) rather than the industrial grade. Ensure compatibility with the SOIC-8 footprint during PCB layout verification.

Selection Notes

Select this component for applications requiring accurate RMS conversion of complex waveforms with minimal power consumption. The buffered output simplifies interface design compared to unbuffered alternatives. Consider the AD737 if power-down functionality or negative output polarity is required instead.

Part Context

This part belongs to the AD736 family of true RMS-to-DC converters. It shares core architectural similarities with variants like the AD736BRZ and AD736JRZ, differing primarily in temperature rating and packaging format. The device is categorized under PMIC specialized converters.

Replacement Considerations

The AD736ARZ-RL serves as a functional substitute offering identical electrical characteristics but extended to the industrial temperature range (-40°C to +85°C). Verify pinout compatibility before substitution.