AD8436ACPZ-WP

Overview

The AD8436ACPZ-WP is a precision, low-power True RMS-to-DC converter manufactured by Analog Devices Inc. It provides accurate DC equivalent values for AC waveforms, including complex signals from switch-mode power supplies and triac controls. The device features a wide dynamic input range of 100 μV rms to 3 V rms (8.5 V p-p) with an accuracy of ±10 μV and ±0.25% of reading. It operates on a single supply voltage ranging from 4.8 V to 36 V or dual supplies from ±2.4 V to ±18 V. The component utilizes high-impedance FET inputs and includes internal matched resistors for gain configurations.

Feature Summary

• Delivers true RMS results without the need for programming overhead or processor involvement.
• Features high-impedance FET input buffers with extremely low bias current and capacitance.
• Includes a precision DC output buffer that minimizes offset voltage when driving low-impedance loads.
• Provides rapid settling across arbitrary input levels with zero residual switching products.

Applications

• Portable multimeters
• Battery-powered measurement devices
• Power monitoring systems
• Industrial signal conditioning

Procurement Notes

Verify the specific suffix WP against official Analog Devices documentation to confirm package type and environmental rating. Ensure compatibility with the required supply voltage range and input signal characteristics before integration. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when precise RMS conversion is required for complex waveforms without digital processing. It is suitable for applications demanding low power consumption and high input impedance. Consider the available LFCSP and QSOP packages for space-constrained designs requiring robust performance across wide temperature ranges.

Part Context

This device belongs to the AD8436 series of True RMS-to-DC converters. It represents a generation of analog solutions designed to replace costly peak-detection or average-response methods. The technology leverages cross-linear principles to achieve high accuracy and low power consumption in a compact form factor.

Replacement Considerations

Consult official substitution guides for verified alternatives within the Analog Devices portfolio. Generic replacements may not match the specific RMS accuracy or input impedance characteristics.