ADA4077-2ARZ

Overview

The ADA4077-2ARZ is a dual-channel high-precision operational amplifier from Analog Devices, housed in an 8-lead SOIC package. It features extremely low offset voltage and drift, with A-grade specifications of 50 µV maximum at 25°C and 0.55 µV/°C drift across the -40°C to +125°C range. The device operates on dual supplies from ±2.5 V to ±15 V, drawing 400 µA per amplifier. Key electrical parameters include a 3.9 MHz gain bandwidth product, 1.2 V/µs slew rate, 6.9 nV/√Hz noise density, and 1 nA maximum input bias current.

Feature Summary

• Extremely low offset voltage and drift for high DC precision
• Low input bias current insensitive to temperature variations
• Immunity to output phase reversal under overload conditions
• Stable operation with capacitive loads exceeding 1000 pF

Applications

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

Procurement Notes

Verify the specific grade (A or B) required for your design, as the ARZ suffix denotes the standard A-grade specification. Confirm the 8-lead SOIC package dimensions match your PCB footprint. Ensure supply voltages remain within the specified ±2.5 V to ±15 V range to maintain performance guarantees.

Selection Notes

Select this component when high DC accuracy and stability are critical. The A-grade rating provides guaranteed maximum offset voltage limits suitable for precision applications. Consider the extended industrial temperature range if the environment exceeds standard commercial limits. Evaluate power consumption requirements against the 400 µA per channel typical draw.

Part Context

This device belongs to the sixth generation of the industry-standard OP07 amplifier family. It offers significant improvements over previous generations, including lower offset, lower drift, and higher bandwidth while maintaining low power consumption. The architecture ensures robust performance in demanding environments without the phase reversal issues common in older designs.

Replacement Considerations

ADA4077-2BRZ: Offers improved offset voltage and drift specifications (B-grade). ADA4077-2ARMZ: Identical electrical characteristics but utilizes an 8-lead MSOP package instead of SOIC.