ADA4523-1BCPZ

Overview

The ADA4523-1BCPZ 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 typical 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.

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 an input common-mode range that includes the negative supply rail.
• Dedicated shutdown control pin allows for significant reduction in supply current consumption.

Applications

• High resolution data acquisition systems
• Reference buffering for precision voltage sources
• Test and measurement instrumentation
• Electronic scales and strain gage amplifiers
• Thermocouple signal conditioning

Procurement Notes

Verify the specific package suffix 'CPZ' corresponds to the 8-lead LFCSP form factor required for your design. Confirm RoHS compliance status and check for any recent Product Change Notifications regarding marking or material declarations before finalizing procurement orders.

Selection Notes

Select this component when ultra-low DC offset and minimal drift are critical requirements. Ensure the application benefits from the integrated EMI filtering and ground-sense capability. Verify that the 5 MHz bandwidth and 1.8 V/µs slew rate meet the dynamic performance needs of the signal chain.

Part Context

This part belongs to the ADA4523 family of high-voltage, low-noise, zero-drift op amps. It is designed for applications requiring precision DC performance across a wide supply range. Companion products include voltage references like the LTC6655 and low-noise amplifiers such as the LT6202.

Replacement Considerations

Public confirmed substitute part numbers: ADA4523-1BRZ, ADA4523-1ARMZ, ADA4523-1ACPZ-RL7.