AD737JRZ-RL

Overview

The AD737JRZ-RL is a true RMS-to-DC converter integrated circuit manufactured by Analog Devices Inc. It operates within a supply voltage range of 10 V to 44 V and supports dual supplies from ±5 V to ±22 V. The device features an output current capability of 160 µA and functions across a temperature range of -40 °C to +85 °C. Packaged in an 8-pin SOIC format measuring 5 mm x 4 mm x 1.5 mm, it converts AC signals into accurate DC voltages proportional to their RMS values.

Feature Summary

• Performs true root-mean-square to direct-current conversion for precision signal processing
• Supports wide single or dual power supply configurations for flexible system integration
• Provides high-output drive current capability suitable for downstream metering circuits

Applications

• Power monitoring and management systems
• Precision AC voltage and current measurement instrumentation
• Industrial process control signal conditioning

Procurement Notes

Verify the specific suffix RL indicates reel packaging when sourcing. Confirm RoHS compliance status as regulatory requirements evolve. Ensure the selected variant matches the required operating temperature range and package dimensions for your PCB layout. Cross-reference the manufacturer datasheet for absolute maximum ratings to prevent device damage during implementation.

Selection Notes

Select this component when precise RMS calculation is required over simple average-responding converters. Consider the 160 µA output current limit for driving subsequent stages. Evaluate the 8-pin SOIC footprint against available board space. Verify that the input signal frequency and amplitude fall within the specified operational limits for optimal accuracy.

Part Context

This part belongs to the AD737 family of RMS-to-DC converters designed for cost-effective power management applications. It complements other Analog Devices signal chain components by providing accurate energy measurement data. The device serves as a foundational element in systems requiring reliable AC power analysis without complex digital processing overhead.

Replacement Considerations

The AD737ARZ-RL is a documented alternative variant within the same product family. Verify pinout compatibility and electrical parameter alignment before substitution. Check if the replacement meets the specific packaging and temperature grade requirements of the original design.