AD536AKQ

Overview

The AD536AKQ is a monolithic true RMS-to-DC converter manufactured by Analog Devices Inc. It directly computes the RMS value of complex input 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, consuming only 1.2mA of quiescent current. The component offers wide bandwidth capabilities, extending up to 450kHz for signals above 100mV, and includes a crest factor compensation scheme allowing measurements with 1% error at crest factors up to 7.

Feature Summary

• Performs true RMS-to-DC conversion for complex AC and DC signals
• Laser trimmed for high precision with minimal external adjustment required
• Includes crest factor compensation for accurate measurement of wide dynamic range signals
• Provides logarithmic dB output capability with a 60dB range

Applications

• Power measurement systems requiring accurate RMS calculation
• Audio level metering and analysis
• Vibration monitoring and signal processing
• Battery-powered instrumentation due to low power consumption

Procurement Notes

Verify the specific suffix 'KQ' against official Analog Devices documentation to confirm package type and temperature grade. Ensure compatibility with existing circuit designs regarding supply voltage ranges and pin configurations. Cross-reference datasheet revisions to confirm electrical characteristics match project requirements before finalizing procurement orders.

Selection Notes

Select this component when high accuracy RMS conversion is required for signals with varying crest factors. The AD536AKQ is suitable for applications demanding low power consumption and wide bandwidth. Consider the available accuracy grades and operating temperature ranges to ensure the device meets environmental and performance specifications.

Part Context

The AD536A series represents a complete monolithic integrated circuit solution for RMS-to-DC conversion, offering performance comparable to more expensive hybrid units. This family improves upon earlier models like the AD536 by providing enhanced bandwidth and reduced temperature drift. The AD536AKQ variant specifically targets high-precision applications requiring tight error margins.

Replacement Considerations

The AD536A can be directly replaced by the AD536AKQ to improve bandwidth and temperature drift standards.