ADA4077-2ARMZ

Overview

The ADA4077-2ARMZ is a dual-channel high-precision operational amplifier from Analog Devices, housed in an 8-lead MSOP package. It operates within an extended industrial temperature range of -40°C to +125°C and supports dual supply voltages from ±2.5 V to ±15 V. Key electrical specifications include a maximum offset voltage of 90 µV at 25°C and a maximum drift of 1.2 µV/°C across the full temperature range. The device features a gain bandwidth product of 3.9 MHz, a slew rate of 1.2 V/µs, and a typical supply current of 400 µA per amplifier.

Feature Summary

• Extremely low offset voltage and drift characteristics ensure high DC accuracy over wide temperature ranges.
• Outputs remain stable with capacitive loads exceeding 1000 pF without requiring external compensation components.
• Immune to output phase reversal even when input common-mode voltages exceed the power supply rails.
• MSL1 rated for compliance with stringent assembly processes and robust thermal handling.

Applications

• Sensor signal conditioning for thermocouples, resistance temperature detectors (RTDs), and strain gauges
• Process control front-end amplifiers
• Precision filters and instrumentation circuits
• Precision diode power measurement in optical and wireless transmission systems

Procurement Notes

Verify the specific grade and package configuration required for your design constraints. Confirm that the 8-lead MSOP footprint matches your PCB layout. Ensure operating conditions stay within the specified ±2.5 V to ±15 V supply range and -40°C to +125°C temperature limits to maintain guaranteed performance parameters.

Selection Notes

Select this component when designing circuits that demand high precision with minimal power consumption. It serves as a direct successor to older OPxx77 family devices, offering improved bandwidth and lower offset while maintaining compatibility with standard surface-mount footprints. Consider the A-grade specifications if tighter offset tolerances are necessary for your application.

Part Context

This device belongs to the sixth generation of Analog Devices' industry-standard OP07 amplifier family. It combines extremely low offset voltage with very low input bias currents, which remain relatively insensitive to ambient temperatures up to 125°C. The architecture provides superior performance compared to previous generations while utilizing compact 8-lead packages.

Replacement Considerations

ADA4077-2ARZ

FAQ

Does the ADA4077-2ARMZ experience output phase reversal?

No, the amplifier is immune to phase reversal problems even when input voltages exceed the power supply settings.

What is the maximum capacitive load the device can drive?

The outputs are stable with capacitive loads of more than 1000 pF without requiring external compensation.