ADA4523-1BRZ-RL7

Overview

The ADA4523-1BRZ-RL7 is a single-channel, zero-drift operational amplifier manufactured by Analog Devices Inc. It operates within a supply voltage range of 4.5 V to 36 V and features rail-to-rail output capability. Key electrical specifications include a maximum offset voltage of ±4 µV at 5 V, an offset voltage drift of 0.01 µV/°C, and a gain-bandwidth product of 5 MHz. The device exhibits low input noise with a spectral density of 4.2 nV/√Hz at 1 kHz and integrates EMI filters for high immunity. It is housed in an 8-lead SOIC package.

Feature Summary

• Zero-drift architecture utilizing self-calibrating circuitry to suppress offset voltage and 1/f noise over time and temperature.
• Integrated electromagnetic interference (EMI) filtering provides high immunity against external RF signals.
• Rail-to-rail output swing with ground-sense input capability extending the common-mode range to the negative supply rail.

Applications

• High resolution data acquisition systems
• Thermocouple amplifiers
• Strain gage signal conditioning
• Low-side current sense circuits

Procurement Notes

Verify the specific ordering suffix RL7 confirms tape-and-reel packaging when sourcing from distributors. Confirm the component matches the ADA4523-1 family specifications, including the 8-lead SOIC package and Analog Devices manufacturing origin. Ensure the part number corresponds to the Rev. 0 datasheet requirements for electrical characteristics and thermal performance.

Selection Notes

Select this component for applications requiring precision DC performance across a wide supply voltage range up to 36 V. The integrated EMI filters make it suitable for noisy industrial environments. Consider the 5 MHz bandwidth and 1.8 V/µs slew rate for dynamic signal requirements. Verify that the shutdown pin functionality aligns with system power management needs.

Part Context

The ADA4523-1 belongs to the ADA4523 series of high-voltage, low-noise zero-drift amplifiers. It is designed to replace traditional chopper-stabilized amplifiers while offering superior noise performance and EMI rejection. The BRZ-RL7 designation indicates the standard SOIC package variant supplied in reel format for automated assembly processes.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.