ADA4077-1ARMZ-R7

Overview

The ADA4077-1ARMZ-R7 is a single-channel precision operational amplifier from Analog Devices, packaged in an 8-lead MSOP. It features a gain bandwidth product of 3.9 MHz and a slew rate of 1.2 V/µs. The device operates on dual supplies ranging from ±2.5 V to ±15 V with a typical supply current of 400 µA per amplifier. Key electrical characteristics include a maximum input offset voltage of 90 µV (A grade) and a maximum drift of 1.2 µV/°C over the -40°C to +125°C temperature range.

Feature Summary

• Extremely low offset voltage and drift for high DC accuracy
• Low input bias current insensitive to ambient temperatures
• Stable operation with capacitive loads exceeding 1000 pF without external compensation
• Immunity to output phase reversal even beyond power supply settings

Applications

• Sensor signal conditioning such as thermocouples, RTDs, and strain gages
• Process control front-end amplifiers
• Precision filters and level setting circuits
• Precision diode power measurement in optical and wireless transmission systems

Procurement Notes

Verify the specific A-grade performance limits against your design requirements, as the MSOP package has higher offset voltage and drift specifications compared to the SOIC variant. Confirm that the reel quantity matches your production needs and ensure proper ESD handling protocols are followed during assembly due to the sensitivity of the CMOS inputs.

Selection Notes

Select this component when high precision is required alongside low power consumption in a compact surface-mount footprint. The MSOP package offers a smaller form factor than the standard SOIC but comes with slightly relaxed offset voltage and drift specifications. Ensure the application benefits from the wide operating temperature range and the stability under heavy capacitive loading conditions.

Part Context

This device belongs to the sixth generation of the industry-standard OP07 amplifier family. It provides significant improvements over previous generations, including lower offset, lower noise, and wider bandwidth while consuming one-fourth the power of the OP177. The part is designed for demanding environments requiring extended industrial temperature operation and robust assembly process compliance.

Replacement Considerations

ADA4077-1ARMZ

FAQ

Does the ADA4077-1ARMZ-R7 experience output phase reversal?

No, the amplifier is immune to phase reversal problems even at input voltages beyond 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 with no external compensation required.