ADR435TRZ-EP

Overview

The ADR435TRZ-EP is an XFET voltage reference providing a fixed 5.0 V output with ±0.04% initial accuracy and a maximum temperature coefficient of 3 ppm/°C over the military range of −55°C to +125°C. It operates within a supply voltage window of 7.0 V to 18 V, drawing a typical quiescent current of 800 µA. The device features low noise (8 µV p-p from 0.1 Hz to 10 Hz) and supports high output source and sink currents up to ±10 mA. Packaged in an 8-lead SOIC_N, it includes a trim terminal for voltage adjustment.

Feature Summary

• Utilizes patented XFET technology to minimize voltage change versus temperature nonlinearity.
• Supports defense and aerospace applications through AQEC standards and controlled manufacturing baselines.
• Provides high output source and sink current capability without requiring external capacitors.

Applications

• Precision data acquisition systems
• High resolution data converters
• Optical control circuits

Procurement Notes

Verify that the component meets the specific Enhanced Product Features required for your project, including the controlled manufacturing baseline and single assembly site. Confirm the package option matches the R-8 specification and ensure the ordering suffix corresponds to the desired quantity format. Request qualification data if necessary for aerospace or defense compliance requirements.

Selection Notes

Select this component when military temperature operation and enhanced reliability are mandatory. The 5.0 V output is optimized for 5 V systems, offering lower headroom requirements than buried Zener references. Consider the trim terminal if fine-tuning the output voltage within a 0.5% range is needed without compromising performance specifications.

Part Context

This part belongs to the ADR43x-EP series of low noise XFET voltage references. It shares architectural similarities with the ADR431-EP and ADR434-EP but provides a distinct 5.0 V nominal output. The EP designation indicates enhanced product features suitable for rugged environments, distinguishing it from standard commercial grade variants.

Replacement Considerations

ADR435ARZ

FAQ

What is the function of Pin 3?

Pin 3 is labeled NIC, which stands for Not Internally Connected. This pin is not connected internally and should be left unconnected during circuit implementation.

How does the XFET technology benefit this reference?

XFET technology minimizes voltage change versus temperature nonlinearity, resulting in lower temperature coefficients compared to traditional buried Zener references while operating at lower supply voltages.