ADA4077-2BRZ

Overview

The ADA4077-2BRZ is a dual high-precision operational amplifier from Analog Devices, packaged in an 8-lead SOIC. 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. Input offset voltage is specified at a maximum of 50 µV (A grade) or 25 µV (B grade), with drift up to 0.55 µV/°C. It offers low input bias current of 1 nA, CMRR of 128 dB, and PSRR of 128 dB.

Feature Summary

• Extremely low offset voltage and drift for high DC accuracy
• Low input bias current and noise density
• Stable operation with capacitive loads exceeding 1000 pF without external compensation
• Immunity to output phase reversal even beyond common-mode limits

Applications

• Process control front-end amplifiers
• Precision sensors and controls
• Optical network control circuits
• Instrumentation
• Precision filters

Procurement Notes

Verify the specific grade (A or B) required for your design, as the datasheet specifies different offset voltage and drift limits for each. Confirm that the 8-lead SOIC package matches your PCB footprint. Ensure the operating temperature range of -40°C to +125°C meets your environmental requirements. Check for MSL1 rating compliance if using stringent assembly processes.

Selection Notes

Select this component when high DC precision is critical alongside moderate speed. It serves as a direct successor to the OPxx77 family, offering significantly lower power consumption and higher bandwidth. Consider the A grade for general precision needs or the B grade for tighter offset specifications. Verify that the single-supply or dual-supply configuration fits your system architecture.

Part Context

The ADA4077-2BRZ belongs to the sixth generation of Analog Devices' industry-standard OP07 amplifier family. It replaces older precision amplifiers like the OP2177, providing improved performance in a compact surface-mount package. This series includes single-channel (ADA4077-1) and quad-channel (ADA4077-4) variants for flexible system design.

Replacement Considerations

Public confirmed substitute part numbers: ADA4077-2ARZ, ADA4077-2ARMZ.