ADA4097-1BUJZ-RL7

Overview

The ADA4097-1BUJZ-RL7 is a single-channel, precision operational amplifier manufactured by Analog Devices Inc. It features an ultrawide common-mode input range extending from −VS to +VS and beyond, supporting Over-The-Top operation up to 70 V. The device operates on supply voltages ranging from +3 V to +50 V with a typical quiescent current of 32.5 µA per channel. Key electrical specifications include a maximum input offset voltage of ±60 µV, a gain-bandwidth product of 130 kHz, and a slew rate of 0.1 V/µs. It offers high CMRR and PSRR values exceeding 120 dB and includes a shutdown feature for low-power applications.

Feature Summary

• Supports Over-The-Top™ operation with inputs functioning above the positive supply rail
• Provides robust performance in abusive environments with overdrive tolerance and no phase reversal
• Features low power consumption with an active supply current of 32.5 µA per channel
• Includes a dedicated shutdown pin to minimize power usage during idle periods

Applications

• Industrial sensor conditioning circuits
• Supply current sensing applications
• Battery and power supply monitoring systems
• Front-end amplifiers in harsh operating environments
• 4 mA to 20 mA transmitter interfaces

Procurement Notes

Verify the specific package type and temperature grade against the ordering guide before procurement. Confirm that the BUJZ suffix corresponds to the correct TSOT-6 package variant. Ensure compatibility with the required operating temperature range, as H-grade variants support extended limits compared to B-grade units. Cross-reference the datasheet revision to confirm all parameter updates are accounted for in the design.

Selection Notes

Select this component when high-voltage signal processing is required without level shifting. The Over-The-Top capability allows direct connection to high-side sensors. Consider the thermal resistance characteristics if operating near the maximum junction temperature limit. Evaluate the shutdown functionality requirements to leverage the reduced standby current effectively in battery-powered designs.

Part Context

This part belongs to the ADA4097 family of robust, precision operational amplifiers designed for high-voltage industrial applications. The series combines low noise and low offset with the ability to withstand input voltages significantly higher than the supply rails. It is engineered for stability and reliability in demanding environments where standard op-amps would fail due to common-mode limitations.

Replacement Considerations

Direct substitutes within the same family include the dual-channel ADA4097-2 variants. Verify pinout compatibility and package dimensions when replacing existing components. Ensure that any alternative device maintains the Over-The-Top input specification and similar quiescent current levels to preserve circuit performance.