AD736JR-REEL

Overview

The AD736JR-REEL 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 up 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 maintains high accuracy with signal crest factors up to 5 and offers a full-scale input range of 200 mV RMS. The component is housed in an 8-pin SOIC package.

Feature Summary

• Converts AC voltage waveforms to DC voltage representing true RMS, average rectified, or absolute values
• Maintains high accuracy across diverse input waveforms including variable duty-cycle pulses and phase-controlled sine waves
• Features high input impedance and low input bias current for minimal signal loading

Applications

• Portable multimeters and battery-powered measurement instruments
• Upgrading performance of non-RMS precision rectifier circuits
• Signal processing systems requiring accurate RMS conversion of complex waveforms

Procurement Notes

Verify the specific suffix designation against the manufacturer's official documentation to confirm tape-and-reel packaging configuration. Ensure the part number matches the exact temperature grade and pinout requirements for your design. Cross-reference with the latest datasheet revision to confirm electrical characteristics and compliance status before finalizing procurement specifications.

Selection Notes

Select this component when precise RMS conversion is required for low-power applications without the need for external calibration. It serves as a direct replacement for less accurate precision rectifier circuits. Consider the wide supply voltage range and buffered output when designing power-sensitive systems. Evaluate the input attenuation requirements if signals exceed the 200 mV RMS full-scale range.

Part Context

The AD736 series represents a family of low-cost, low-power true RMS-to-DC converters designed for precision analog signal processing. The JR variant specifically denotes the industrial temperature range and surface-mount SOIC packaging. This component belongs to the broader PMIC category, focusing on specialized signal conversion rather than general power management.

FAQ

What is the maximum error specification for sine wave inputs?

The device is laser trimmed to provide a maximum error of ±0.3 mV plus 0.3% of the reading when measuring sine wave inputs.

Does the AD736JR-REEL require external trimming for specified accuracy?

No, the device provides specified accuracy without the need for external trims due to its internal laser trimming process.