AD8674ARZ

Overview

The AD8674ARZ is a quad-channel precision operational amplifier manufactured by Analog Devices Inc. It features a gain bandwidth product of 10 MHz, a slew rate of 4 V/µs, and an input offset voltage maximum of 75 µV at 25°C. The device operates on dual supplies ranging from ±5 V to ±15 V with a supply current of 3.5 mA per amplifier. It provides a voltage noise density of 2.8 nV/√Hz and maintains unity-gain stability while driving capacitive loads exceeding 1000 pF without phase reversal.

Feature Summary

• Unity-gain stable operation with no output phase reversal under overdrive conditions
• Capable of driving large capacitive loads exceeding 1000 pF directly
• Low input bias current combined with very low voltage noise density

Applications

• PLL synthesizers and loop filters
• GPS receiver band-pass and low-pass filters
• Precision instrumentation and data acquisition systems

Procurement Notes

Verify the specific package option against the ordering guide to ensure compatibility with the intended PCB footprint. Confirm that the industrial temperature range of -40°C to +85°C meets system requirements. Check for RoHS compliance status indicated by the Z suffix in the part number before finalizing procurement documentation.

Selection Notes

Select this component when multiple high-precision channels are required within a single integrated circuit. The quad configuration reduces board space compared to using separate single or dual amplifiers. Ensure the application benefits from the combination of low noise and wide bandwidth provided by the bipolar input stage architecture.

Part Context

This device belongs to the AD8671/AD8672/AD8674 family of precision operational amplifiers designed for applications requiring ultralow noise and high accuracy. While sharing core electrical characteristics with the single-channel AD8671 and dual-channel AD8672, the AD8674 integrates four independent amplifiers into a 14-lead SOIC package.

Replacement Considerations

ADA4091-4, OP4177, ADA4004-4, OP497, and AD704 are suggested alternatives if extremely low voltage noise is not required.