AD8574TRU-EP

Overview

The AD8574TRU-EP is a quad, zero-drift operational amplifier from Analog Devices, designed for single-supply operation between 2.7 V and 5 V. It features rail-to-rail input and output capabilities with an ultralow offset voltage of 1 μV and drift of 0.005 μV/°C. The device offers high gain (145 dB typical), CMRR (140 dB typical), and PSRR (130 dB typical). It operates within a military temperature range of −55°C to +125°C and utilizes a patented spread spectrum auto-zero technique to eliminate intermodulation effects.

Feature Summary

• Utilizes a patented spread spectrum auto-zero technique to eliminate intermodulation effects in AC applications.
• Provides rail-to-rail input and output swings for maximum dynamic range.
• Features ultralow offset voltage and drift for minimized error sources.
• Supports defense and aerospace applications through controlled manufacturing baselines.

Applications

• Temperature sensors
• Pressure sensors
• Precision current sensing
• Strain gage amplifiers

Procurement Notes

Verify the Enhanced Product (EP) designation ensures compliance with AQEC standards for defense and aerospace use. Confirm the specific suffix indicates RoHS compliance if required by the application. Check that the ordering code matches the desired package option and reel configuration. Ensure the supply chain supports the controlled manufacturing baseline requirements.

Selection Notes

Select this component when extreme DC precision and low drift are critical in single-supply systems. The quad configuration allows multiple channels in a compact 14-lead TSSOP package. Consider the 2.7 V to 5 V operating range and ensure the load conditions align with the specified output swing characteristics across the full military temperature range.

Part Context

This part belongs to the AD857x family of zero-drift amplifiers, which includes dual and single-channel variants. The AD8574-EP specifically targets rugged environments requiring military-grade reliability. It shares core architectural benefits with standard commercial versions but adheres to stricter quality control and notification protocols.

Replacement Considerations

Standard AD8574 variants lack the EP qualification and military temperature range. Verify compatibility with existing board layouts as the 14-lead TSSOP footprint remains consistent across the family.