ADA4077-2BRZ-R7

Overview

The ADA4077-2BRZ-R7 is a dual high-precision operational amplifier from Analog Devices, packaged in an 8-lead SOIC with reel packing. It features a maximum offset voltage of 25 µV at 25°C and a drift of 0.25 µV/°C over 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 >120 dB CMRR and PSRR.

Feature Summary

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

Applications

• Sensor signal conditioning (thermocouples, RTDs, strain gauges)
• Process control front-end amplifiers
• Precision filters
• Optical and wireless transmission power measurement

Procurement Notes

Verify the B-grade specification limits against design requirements, as this variant offers tighter offset voltage tolerances than the A-grade counterpart. Confirm the reel quantity matches production needs. Ensure ESD precautions are observed during handling due to the sensitivity of precision inputs. Cross-reference the datasheet revision to confirm pinout consistency if replacing older inventory.

Selection Notes

Select this component when high DC precision and stability are critical. The B-grade rating provides superior offset performance compared to standard grades. Consider the extended industrial temperature range for harsh environments. Evaluate the low power consumption relative to previous generation amplifiers like the OP177 family for battery or thermally constrained designs.

Part Context

This device belongs to the sixth generation of the industry-standard OP07 amplifier family. It replaces legacy parts by offering significantly improved bandwidth and lower power consumption while maintaining high precision. The dual configuration allows for cost-effective implementation of differential or multi-channel signal processing circuits in compact surface-mount layouts.

Replacement Considerations

ADA4077-2ARZ-R7