AD536AJD

Overview

The AD536AJD is a monolithic true RMS-to-DC converter IC from Analog Devices. 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 error of ±0.5%. It supports single or dual supply operation within a 5V to 36V range and draws only 1.2mA quiescent current. The component provides a logarithmic dB output with a 60dB range and includes crest factor compensation up to 7.

Feature Summary

• Performs true RMS-to-DC conversion for signals containing both AC and DC components
• Includes crest factor compensation scheme allowing measurements with 1% error at crest factors up to 7
• Provides a dedicated logarithmic dB output pin with a 60dB dynamic range
• Features laser-trimmed internal circuitry ensuring high precision without external adjustments

Applications

• Power measurement systems requiring accurate RMS calculation
• Audio level metering utilizing the logarithmic dB output
• Battery-powered instruments due to low static current consumption
• Industrial process control signal conditioning

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and temperature rating. Ensure the procurement channel sources genuine components to maintain specified accuracy levels. Cross-reference the part number with current datasheets to validate availability status and any recent product change notifications before finalizing orders.

Selection Notes

Select this component when high-precision RMS conversion is required for mixed AC/DC signals. Consider the AD536AJD for applications needing integrated crest factor compensation and a direct dB output. Evaluate the operating temperature range and supply voltage requirements against the system constraints to ensure compatibility with the specified commercial grade specifications.

Part Context

The AD536A series represents a complete monolithic solution for true RMS-to-DC conversion, replacing more expensive hybrid or modular alternatives. The AD536AJD variant specifically denotes the commercial grade version housed in a standard DIP package. This family is designed to simplify the design of power meters and signal analyzers by integrating rectification, squaring, averaging, and buffering functions on a single chip.

Replacement Considerations

The AD536AJQ serves as a verified equivalent replacement option within the same product family.