ADA4097-2BRMZ-RL7

Overview

The ADA4097-2BRMZ-RL7 is a dual-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 above the negative supply. The device operates on a wide power supply voltage range of +3 V to +50 V (±25 V for PSRR) with a low quiescent current of 32.5 µA per channel. Key electrical specifications include a gain bandwidth product of 130 kHz, a slew rate of 0.1 V/µs, and a maximum input offset voltage of ±60 µV. It offers robust performance in abusive environments with high CMRR and PSRR.

Feature Summary

• Over-The-Top input capability allowing operation from −VS to +VS and beyond
• Robust design tolerant of abusive environments and large signal overdrive without phase reversal
• Low power consumption with shutdown feature available for specific packages
• High precision with low input offset voltage and drift

Applications

• Industrial sensor conditioning
• Supply current sensing
• Battery and power supply monitoring
• Front-end amplifiers in abusive environments
• 4 mA to 20 mA transmitters

Procurement Notes

Verify the package type matches the required PCB footprint, as the ADA4097-2 is available in SOIC_N, MSOP, and LFCSP variants. Confirm the grade (B or H) corresponds to the necessary temperature range and offset voltage specifications. Ensure the ordering suffix aligns with the desired reel quantity and tape-and-reel configuration. Cross-reference the datasheet revision to confirm all parameter updates are accounted for in the design.

Selection Notes

Select this component when high common-mode voltage tolerance exceeding the positive supply rail is required. It is suitable for single-supply applications where ground sensing or high-side current measurement is needed. Consider the thermal resistance and power dissipation limits if operating at elevated ambient temperatures. Verify that the 130 kHz bandwidth meets the signal frequency requirements for the intended application.

Part Context

This part belongs to the ADA4097 family of robust, precision op amps designed for harsh industrial conditions. Unlike standard op amps, it supports Over-The-Top operation, making it distinct from devices limited to the supply rails. It complements other Analog Devices precision amplifiers but is specifically optimized for high-voltage, low-power, and high-common-mode scenarios.

Replacement Considerations

Direct pin-compatible replacements within the same package must be verified against the datasheet. Other parts in the ADA4097 series may offer different package options or grades. Ensure any substitute maintains the Over-The-Top input capability and similar power supply ranges.