AD8574TRUZ-EP-RL

Overview

The AD8574TRUZ-EP-RL is a quad, zero-drift operational amplifier from Analog Devices' Enhanced Product line. It features rail-to-rail input and output swings and operates on a single supply of 2.7 V to 5 V. The device utilizes a patented spread spectrum auto-zero technique to eliminate intermodulation effects in AC applications. Key electrical characteristics include a typical offset voltage of 1 μV, an input offset drift of 0.005 μV/°C, and ultralow input bias current of 10 pA. It offers high gain (145 dB typical), CMRR (140 dB typical), and PSRR (130 dB typical). The component is specified for the military temperature range of −55°C to +125°C and is housed in a 14-lead TSSOP package.

Feature Summary

• Zero-drift architecture using spread spectrum auto-zeroing to minimize DC errors and intermodulation effects
• Rail-to-rail input and output capability for maximum dynamic range
• Ultralow offset voltage and drift ensuring high precision
• Enhanced product reliability with controlled manufacturing baseline

Applications

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

Procurement Notes

Verify that the specific ordering suffix matches the required packaging format, as the datasheet lists both tube and reel options for the TRUZ-EP variant. Confirm compliance with AQEC standards for defense and aerospace qualification requirements. Ensure the military temperature range specification aligns with the system's environmental operating conditions before finalizing procurement.

Selection Notes

Select this component when ultra-low DC error sources are critical and single-supply operation between 2.7 V and 5 V is required. The quad configuration provides four independent channels in a compact package. Consider the 14-lead TSSOP footprint for PCB layout constraints. Verify that the overload recovery time and slew rate meet the dynamic signal processing requirements of the application.

Part Context

This part belongs to the AD8574-EP Enhanced Product family, designed specifically for defense and aerospace applications under the AQEC standard. It shares core specifications with the commercial AD8574 but includes controlled manufacturing baselines, single assembly/test sites, and product change notifications. The EP designation indicates enhanced reliability and traceability compared to standard commercial variants.

Replacement Considerations

The AD8574TRUZ-EP is functionally compatible with the AD8574TRU-EP. Both share identical electrical specifications and pinouts. The primary difference lies in the packaging format; verify if the reel or tube option is required for the production line. No other direct substitutes are documented in the provided datasheet.