AD536AKHZ

Overview

The AD536AKHZ is a monolithic integrated circuit designed for true RMS-to-DC conversion. It directly computes the RMS value of complex input waveforms containing AC and DC components, offering performance comparable to hybrid units. 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 5V to 36V range and includes a crest factor compensation scheme allowing measurements up to a crest factor of 7 with only 1% error. The component operates over an extended temperature range of -55°C to +125°C.

Feature Summary

• Performs true RMS-to-DC conversion for signals containing both AC and DC components
• Laser trimmed to ensure high precision with a maximum reading error of ±0.2%
• Includes crest factor compensation enabling accurate measurement at crest factors up to 7
• Features a logarithmic dB output with a 60 dB dynamic range

Applications

• Precision power measurement systems
• Audio signal analysis and processing
• Vibration monitoring equipment
• Test and measurement instrumentation

Procurement Notes

Verify the specific suffix KHZ against official Analog Devices documentation to confirm package type and temperature grade. Ensure compatibility with system voltage requirements ranging from 5V to 36V. Confirm that the -55°C to +125°C operating range meets environmental specifications. Cross-reference pinout details for the TO-100-10 metal can package during integration.

Selection Notes

Select this component when high accuracy is required for complex waveform analysis. The ±0.2% error specification suits applications demanding precise power calculations. Consider the wide bandwidth capabilities for signals exceeding 100 mV. Evaluate the need for the extended industrial temperature range compared to commercial variants.

Part Context

This part belongs to the AD536A family of RMS-to-DC converters manufactured by Analog Devices. It serves as a complete monolithic solution replacing older hybrid technologies. The AD536A series provides direct computation of RMS values without external calibration, utilizing internal laser trimming for stability and accuracy across varying conditions.

Replacement Considerations

The AD536AJHZ offers similar functionality but with a higher maximum error of ±0.5%. The AD536AS shares the same extended temperature range but differs in accuracy specifications. Verify pin compatibility and thermal characteristics before substituting.