AD736JR-REEL7

Overview

The AD736JR-REEL7 is a low-power, precision monolithic true RMS-to-DC converter manufactured by Analog Devices Inc. It is laser-trimmed to ensure a maximum error of ±0.3 mV plus 0.3% of the reading when processing sine wave inputs. The device maintains high accuracy across diverse input waveforms, including variable duty-cycle pulses and triac-controlled sine waves. It features a wide power supply range from +2.8 V/-3.2 V to ±16.5 V and consumes a maximum supply current of 200 µA. The component operates within a temperature range of 0°C to +70°C and is housed in an 8-pin SOIC-N package.

Feature Summary

• Converts AC voltage waveforms to DC representing true RMS, average rectified, or absolute values
• Provides buffered voltage output without requiring external trimming for specified accuracy
• Supports RMS conversion with signal crest factors up to 5
• Features high input impedance and low input bias current

Applications

• Portable multimeters
• Battery-powered measurement instruments
• Upgrading non-RMS precision rectifiers
• Power monitoring systems

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm tape-and-reel packaging and industrial temperature grade specifications. Ensure compatibility with system voltage rails and thermal requirements before integration. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component for applications requiring accurate RMS measurement of complex waveforms with minimal power consumption. Consider the AD737 if power-down functionality or negative output polarity is required. Evaluate input attenuation needs for signals exceeding the 200 mV full-scale range.

Part Context

This device belongs to the AD736 family of precision analog converters designed for cost-effective and compact RMS-to-DC conversion solutions. It serves as a direct replacement for discrete precision rectifier circuits, offering superior accuracy and reduced board space. The family includes variants with different temperature ranges and packaging options.

Replacement Considerations

The AD737 is a related device featuring power-down control and negative output. Verify pinout compatibility and output polarity differences when substituting other RMS-to-DC converters.