AD8674AR

Overview

The AD8674AR is a quad precision operational amplifier from Analog Devices, housed in a 14-lead SOIC package. It features a gain bandwidth product of 10 MHz and a slew rate of 4 V/µs. The device exhibits low input offset voltage (max 75 µV) and low input bias current (max 12 nA). Operating on dual supplies ranging from ±5 V to ±15 V, it draws approximately 3 mA per amplifier. Key performance metrics include a common-mode rejection ratio of 120 dB and a power supply rejection ratio of 115 dB.

Feature Summary

• Very low noise characteristics with high open-loop gain for precision signal processing
• Low input bias current and low offset voltage drift ensuring high DC accuracy
• Stable operation with capacitive loads exceeding 1000 pF without external compensation
• No phase reversal occurs even when input voltage exceeds the supply rails

Applications

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

Procurement Notes

Verify the specific suffix against the manufacturer's ordering guide to confirm package type and temperature range. Ensure the procurement channel provides valid traceability documentation. Confirm RoHS compliance status if required by the design specifications. Check for any regional distribution restrictions or obsolescence notices prior to finalizing the order.

Selection Notes

Select this component for applications requiring low noise and high precision within the industrial temperature range. Consider the 14-lead SOIC package constraints regarding board space and thermal dissipation. Evaluate the need for four channels versus using multiple dual amplifiers to manage heat generation. Verify that the supply voltage range aligns with the system requirements for optimal performance.

Part Context

This part belongs to the AD8671/AD8672/AD8674 series of very low noise bipolar operational amplifiers. The AD8674 specifically integrates four independent amplifiers in a single package. It shares core electrical characteristics with the single-channel AD8671 and dual-channel AD8672 variants, offering a compact solution for multi-channel precision analog signal conditioning tasks.

Replacement Considerations

ADA4091-4, OP4177, ADA4004-4, OP497, AD704.