AD736ARZ

Overview

The AD736ARZ 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 +2.8 V to -3.2 V up to ±16.5 V. The device draws a maximum operating supply current of 200 µA, making it suitable for battery-powered applications. It provides a buffered voltage output with specified accuracy without requiring external trimming. The component supports input signal crest factors up to 5 and maintains high precision across various waveforms, including pulse trains and phase-controlled sine waves.

Feature Summary

• Monolithic true RMS-to-DC conversion architecture optimized for precision measurement
• Integrated buffered voltage output eliminates the need for external adjustment components
• Capable of accurate processing for complex waveforms such as variable duty cycle pulses
• Low power consumption design facilitates deployment in portable and battery-operated systems

Applications

• Portable digital multimeters
• Battery-powered instrumentation systems
• Power monitoring circuits requiring AC/DC conversion
• Signal conditioning for non-sinusoidal waveform analysis

Procurement Notes

Verify the specific suffix 'ARZ' against official Analog Devices documentation to confirm the industrial temperature grade and RoHS compliance status. Ensure the SOIC-8 package dimensions match the target PCB footprint requirements. Confirm availability through authorized distributors as supply levels may vary. Cross-reference the datasheet revision date to ensure compatibility with current design specifications.

Selection Notes

Select this component when high accuracy is required for non-sinusoidal signals without the complexity of discrete solutions. The AD736ARZ offers a compact alternative to traditional precision rectifiers. Consider the 200 µA supply current constraint for power-sensitive designs. Verify that the input signal amplitude falls within the specified full-scale range for optimal performance.

Part Context

The AD736 belongs to a family of precision analog signal processing devices designed for RMS conversion. Unlike general-purpose operational amplifiers, this part integrates specialized internal circuitry for squaring, averaging, and square-rooting operations. It serves as a dedicated solution for converting AC signals to proportional DC voltages based on their effective value.

Replacement Considerations

Consult official substitution guides for pin-compatible alternatives within the same manufacturer's portfolio. Verify functional equivalence regarding bandwidth, input bias current, and output drive capability before replacing.