ZXRE4041FRSTZ

Overview

The ZXRE4041FRSTZ is a micropower bandgap voltage reference providing a nominal output of 1.225V in an SOT-23 package. It operates within a current range of 30µA to 12mA, maintaining stability under capacitive loads. The device features a typical temperature coefficient of 20ppm/°C and offers tolerance grades of 0.5%, 1%, and 2%. It functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Micropower operation with a low knee current of 30µA
• Unconditionally stable performance with high capacitive load tolerance
• Small outline SOT-23 surface mount packaging for space efficiency
• High precision with a typical temperature coefficient of 20ppm/°C

Applications

• Battery powered equipment
• Precision power supplies
• Portable instrumentation
• Data acquisition systems
• A/D and D/A converters

Procurement Notes

Verify the specific tolerance grade suffix (C, D, or F) required for your application accuracy needs. Confirm that the SOT-23 package aligns with your PCB footprint requirements. Ensure the operating environment stays within the specified -40°C to +125°C temperature range. Check for any updated datasheet revisions that may affect electrical characteristics or ordering information before finalizing procurement.

Selection Notes

Select this component when a compact, low-power shunt reference is needed for portable devices. It serves as a pin-compatible alternative to LM4041 references. Choose based on required initial accuracy: 0.5% for C grade, 1% for D grade, or 2% for standard applications. Consider the 30µA minimum current requirement for battery life optimization.

Part Context

This part belongs to the ZXRE4041 series of micropower voltage references manufactured by Diodes Incorporated. The series includes variants with different tolerance grades packaged in the SOT-23 form factor. These components are designed to replace older through-hole references while offering improved thermal stability and lower power consumption in modern electronic designs.

Replacement Considerations

The datasheet identifies the ZXRE4041 as a pin-for-pin compatible alternative to LM4041 voltage references. Verify that the replacement meets the same electrical specifications for your circuit design.

FAQ

Is the ZXRE4041 unconditionally stable?

Yes, the device is designed to be unconditionally stable and is highly tolerant of capacitive loads.

What is the typical temperature coefficient?

The typical temperature coefficient is 20ppm/°C over the operating current range.