AD736JRZ

Overview

The AD736JRZ is a low-power, precision monolithic true RMS-to-DC converter manufactured by Analog Devices Inc. It features an 8-pin SOIC-N surface-mount package and operates on a wide supply voltage range from -3.2 V to +16.5 V. The device draws a maximum supply current of 200 µA and provides a buffered voltage output with a maximum output current of 2 mA. It is optimized for portable multimeters and battery-powered applications.

Feature Summary

• Laser-trimmed architecture ensures high accuracy with a maximum error of ±0.3 mV plus 0.3% of reading for sine wave inputs.
• Maintains precision across diverse input waveforms, including variable duty cycle pulses and phase-controlled sine waves.
• Includes an internal output buffer amplifier to provide design flexibility without requiring external trimming.

Applications

• Portable digital multimeters
• Battery-powered measurement instruments
• Precision rectifier circuits

Procurement Notes

Verify the specific suffix (e.g., R7) against the datasheet to confirm reel packaging requirements. Confirm RoHS compliance status as indicated in official documentation. Ensure the operating temperature range aligns with system constraints before procurement.

Selection Notes

Select this component when high precision is required for non-sinusoidal signals. The low power consumption makes it suitable for battery-operated devices. Verify that the input signal peak factor does not exceed the specified limit for accurate RMS conversion.

Part Context

This part belongs to the AD736 family of RMS-to-DC converters. It serves as a cost-effective alternative to discrete solutions, offering superior accuracy in a compact form factor. The device integrates necessary circuitry for direct signal processing.

Replacement Considerations

Check for pin-compatible alternatives within the same manufacturer's portfolio. Verify functional equivalence regarding accuracy specifications and supply voltage ranges before substitution.