AD736ARZ-R7

Overview

The AD736ARZ-R7 is a low-power, precision monolithic true RMS-to-DC converter manufactured by Analog Devices Inc. It features an SOIC-8 surface-mount package and operates within a wide supply voltage range of -3.2 V to +16.5 V. The device draws a maximum operating supply current of 200 µA, making it suitable for battery-powered applications. It maintains high accuracy across various input waveforms, including pulse waves with variable duty cycles up to 50% and phase-controlled sine waves. The internal architecture includes a dedicated output buffer amplifier, eliminating the need for external trimming in many configurations.

Feature Summary

• Monolithic true RMS-to-DC conversion capability with laser-trimmed precision
• Integrated output buffer amplifier providing design flexibility without external adjustments
• Optimized for low power consumption suitable for portable and battery-operated systems
• Maintains accuracy across diverse signal types including AC, DC, and complex waveforms

Applications

• Portable digital multimeters
• Battery-powered measurement instruments
• Precision rectifier circuits requiring high accuracy
• Signal processing in industrial monitoring systems

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm that the SOIC-8 package matches the required PCB footprint and soldering specifications. Ensure the operating temperature range aligns with the intended application environment. Check for RoHS compliance status if environmental regulations apply. Validate datasheet revisions to ensure compatibility with current design requirements.

Selection Notes

Select this component when precise RMS calculation is required for non-sinusoidal signals in low-power environments. Consider the SOIC-8 package for surface-mount assembly constraints. Evaluate the 200 µA supply current against total system power budgets. Verify that the wide supply voltage range accommodates the available power rails. Assess the need for an integrated buffer versus discrete solutions based on board space limitations.

Part Context

The AD736 series represents Analog Devices' solution for accurate RMS-to-DC conversion in compact forms. The ARZ suffix indicates a specific tape-and-reel packaging variant within the SOIC-8 family. This part continues the legacy of high-performance analog signal processing while addressing modern size and power efficiency demands in portable instrumentation.

Replacement Considerations

Cross-reference with AD736JRZ-R7 for identical electrical performance in a different temperature grade. Verify pinout compatibility before substituting with other RMS-to-DC converters from the same manufacturer.