AD536AKDZ

Overview

The AD536AKDZ is a monolithic true RMS-to-DC converter from Analog Devices. It directly computes the RMS value of complex waveforms containing AC and DC components. The device features laser trimming for high accuracy, with a maximum reading error of ±0.2%. It supports single or dual supply operation within a voltage range of 5V to 36V. The quiescent current is 1.2 mA. It offers a crest factor compensation scheme allowing measurements up to a crest factor of 7 with 1% error. Bandwidth extends to 450 kHz for signals above 100 mV and 2 MHz for signals above 1 V.

Feature Summary

• Performs true RMS-to-DC conversion for complex input waveforms
• Laser trimmed for high precision with low reading error
• Includes crest factor compensation for wide dynamic range measurement
• Provides logarithmic dB output capability

Applications

• Power measurement systems
• Audio signal analysis
• Vibration monitoring
• Instrumentation requiring RMS calculation

Procurement Notes

Verify component authenticity through authorized distributors. Confirm package type matches design requirements. Check for recent product change notifications regarding manufacturing site updates. Ensure environmental compliance documentation aligns with project specifications. Validate availability status as supply may be limited.

Selection Notes

Select this part when high accuracy RMS conversion is required. Consider the ±0.2% error specification for precision applications. Evaluate bandwidth needs against signal frequency content. Assess power supply constraints due to low quiescent current requirement. Compare against standard operational amplifier solutions for complexity reduction.

Part Context

This component belongs to the AD536A family of RMS-to-DC converters. It serves as an integrated solution replacing hybrid or modular units. The device simplifies circuit design by performing internal squaring, averaging, and square root operations. It is designed for applications demanding accurate power-related signal measurements.

Replacement Considerations

The AD536A is the base model predecessor. The AD536AKDZ offers improved bandwidth and temperature drift characteristics compared to earlier versions. Verify pin compatibility if substituting older variants.