ADA4177-2ARMZ-R7

Overview

The ADA4177-2ARMZ-R7 is a dual-channel precision operational amplifier from Analog Devices, featuring integrated input overvoltage protection and an EMI filter. It operates within a supply voltage range of ±2.5 V to ±18 V (5 V to 36 V total). Key electrical parameters include a maximum offset voltage of 60 µV at 25°C, a maximum offset drift of 1 µV/°C, and a typical supply current of 500 µA per channel. The device offers a gain bandwidth product of 3.5 MHz, a slew rate of 1.5 V/µs, and rail-to-rail output swing. Input bias current is limited to 1 nA maximum.

Feature Summary

• Integrated input overvoltage protection allows signals to exceed supply rails by up to 32 V without damage.
• Built-in EMI filter provides high rejection against electromagnetic interference at 1000 MHz and 2400 MHz.
• Rail-to-rail output capability ensures maximum dynamic range in single or dual supply configurations.
• Low noise density and low input bias current support high-precision signal conditioning applications.

Applications

• Wireless base station control circuits
• Optical network control circuits
• Sensor signal conditioning for thermocouples, RTDs, and strain gages
• Process control front-end amplifiers

Procurement Notes

Verify the specific package type and reel quantity when ordering, as the suffix indicates tape-and-reel packaging. Confirm that the required operating temperature range aligns with the industrial specification limits. Ensure PCB layout accounts for thermal resistance characteristics to maintain junction temperatures within absolute maximum ratings during operation.

Selection Notes

Select this component when robust input protection against extreme voltage excursions is required alongside high DC precision. It is suitable for environments with significant electromagnetic interference where standard op amps might fail. Consider the 8-lead MSOP package for space-constrained designs requiring surface-mount assembly.

Part Context

This part belongs to the ADA4177 family, which includes single, dual, and quad-channel variants. The family is designed to replace older precision amplifiers that lack modern protection features. The dual-channel version consolidates two protected amplifiers into one compact package, reducing board space compared to discrete solutions.

Replacement Considerations

ADA4177-2ARZ