ADA4077-4ARZ

Overview

The ADA4077-4ARZ is a quad, high-precision operational amplifier featuring extremely low offset voltage and drift. It operates within an extended industrial temperature range of −40°C to +125°C and supports dual supplies from ±2.5 V to ±15 V. Key electrical specifications include a maximum offset voltage of 50 µV at 25°C and a typical drift of 0.75 µV/°C. The device exhibits low input bias current (1 nA max) and low voltage noise density (6.9 nV/√Hz). It offers a gain bandwidth product of approximately 3.9 MHz and unity-gain stability without phase reversal.

Feature Summary

• Extremely low offset voltage and drift for high accuracy signal conditioning
• Immunity to output phase reversal even beyond common-mode limits
• MSL1 rated for robustness in stringent assembly processes
• Stable operation with capacitive loads exceeding 1000 pF

Applications

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

Procurement Notes

Verify the specific package variant, as the ADA4077-4 family includes TSSOP and SOIC options. Confirm the grade matches application requirements, noting that the quad version is specified as A-grade. Ensure compatibility with the required operating temperature range and supply voltage constraints before finalizing procurement.

Selection Notes

Select this component for applications requiring high precision with minimal thermal drift. It serves as a direct upgrade to older OP07-family devices, offering significantly lower power consumption and higher bandwidth. Consider the quad configuration for space-constrained designs needing multiple channels with matched performance characteristics.

Part Context

This device belongs to the sixth generation of Analog Devices' precision amplifier lineage, succeeding models like the OP4177. It integrates advanced proprietary process technology to deliver superior performance in compact surface-mount packages. The design focuses on reducing warmup drift errors while maintaining high common-mode rejection and power supply rejection ratios.

Replacement Considerations

ADA4077-4ARUZ