AD737JN

Overview

The AD737JN is a precision RMS-to-DC converter IC manufactured by Analog Devices Inc. It operates within a supply voltage range of -16.5 V to -3.2 V and 2.5 V to 16.5 V, with a maximum input voltage of ±16.5 V. The device features a linear error of 0.35% and a power dissipation of 200 mW. It is housed in an 8-pin Plastic Dual In-Line Package (DIP) with dimensions of 9.27 mm length. The operational temperature range spans from -40°C to +85°C, supporting applications requiring accurate true RMS conversion.

Feature Summary

• Performs true root-mean-square to direct-current signal conversion
• Provides low linear error for high measurement accuracy
• Supports dual-polarity power supply configurations

Applications

• Industrial process control instrumentation
• Audio level metering systems
• Vibration monitoring equipment

Procurement Notes

Verify component authenticity through authorized distributors or official manufacturer channels. Confirm package type matches the 8-pin DIP specification. Ensure supply voltage parameters align with system requirements before integration. Check RoHS compliance status as historical data may vary.

Selection Notes

Select this component when precise RMS conversion is required in through-hole PCB designs. Consider the 8-pin DIP package for prototyping or legacy board compatibility. Evaluate the ±16.5 V input range against signal amplitude constraints. Compare performance metrics with surface-mount alternatives if space is limited.

Part Context

The AD737 belongs to the Analog Devices RMS-to-DC converter family, designed for accurate AC signal magnitude measurement. It complements other specialized PMICs by providing fundamental signal conditioning capabilities. The JN suffix denotes the plastic dual in-line package variant, distinct from surface-mount options like the ARZ series.

Replacement Considerations

The AD737ARZ serves as a surface-mount equivalent within the same functional family. Verify pinout compatibility and thermal characteristics when transitioning between DIP and SOIC packages.