AD736JNZ

Overview

The AD736JNZ is a low-power, precision monolithic true RMS-to-DC converter manufactured by Analog Devices. It operates within a supply voltage range of +2.8 V to ±16.5 V and draws a maximum supply current of 200 µA. The device features a full-scale input range of 200 mV RMS with an input impedance of 10^12 Ω and a maximum input bias current of 25 pA. It provides an output current capability of 2 mA and maintains a maximum linear error of 0.35%. The component supports crest factors up to 5 and functions effectively across a commercial temperature range of 0°C to +70°C.

Feature Summary

• Performs true root-mean-square to direct-current conversion using internal square-root computation for high accuracy across diverse waveforms.
• Features a high-impedance FET input stage that eliminates the need for external buffering or adjustment to achieve specified precision.
• Capable of accurately measuring complex signals including variable duty cycle pulses and phase-controlled sine waves.

Applications

• Precision AC/DC conversion in industrial instrumentation
• Measurement of non-sinusoidal waveforms such as pulse trains
• Power monitoring systems requiring accurate RMS calculation

Procurement Notes

Verify the specific suffix JNZ against official Analog Devices documentation to confirm package type and temperature grade. Confirm RoHS compliance status directly from the manufacturer datasheet. Ensure the procurement channel sources genuine components to guarantee electrical parameters match the published specifications.

Selection Notes

Select this component when precise RMS measurement of complex waveforms is required without external calibration. Consider the 200 µA supply current for low-power applications. Verify that the 200 mV full-scale input range meets signal requirements or if attenuation is necessary. Check availability as distribution may be limited.

Part Context

The AD736JNZ belongs to the AD736 family of true RMS-to-DC converters. This series is designed for applications demanding high accuracy and low power consumption. The JNZ designation indicates a specific package and temperature variant within the broader product line, distinct from other suffixes like ARZ or JN.

Replacement Considerations

Consult official Analog Devices documentation for verified substitute part numbers. Do not assume pin compatibility or electrical equivalence with other RMS converters without explicit manufacturer confirmation.