ZXRE4041DFTC

Overview

The ZXRE4041DFTC is a micropower shunt voltage reference providing a nominal output of 1.225V with a 1% tolerance grade. It operates within a current range of 30µA to 12mA and features a typical temperature coefficient of 20ppm/°C across an operating temperature range of -40°C to +125°C. The device is housed in a compact SOT-23 surface-mount package, ensuring unconditional stability even under capacitive loads.

Feature Summary

• Provides a precise 1.225V bandgap reference voltage with tight tolerance grades for high-accuracy applications
• Operates efficiently at low currents with a minimum knee current of 30µA
• Maintains excellent thermal stability with a typical temperature coefficient of 20ppm/°C
• Ensures unconditional stability when driving capacitive loads

Applications

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

Procurement Notes

Verify the specific suffix 'DF' confirms the 1% tolerance grade and standard reel packaging configuration. Confirm the component meets RoHS standards as indicated by the green molding compound specification. Ensure the ordering code matches the required SOT-23 package dimensions and pinout assignments for your PCB layout.

Selection Notes

Select this component when space constraints require a small SOT-23 footprint alongside precision voltage referencing needs. It serves as a direct pin-compatible alternative to industry-standard LM4041 devices. Consider its low knee current capability for battery-operated designs requiring minimal quiescent power consumption.

Part Context

This part belongs to Diodes Incorporated's ZXRE series of micro-power voltage references. These components are designed for applications demanding high stability and low power consumption in compact form factors. The series supports various tolerance grades to accommodate different precision requirements across industrial and consumer electronics markets.

Replacement Considerations

The datasheet identifies the ZXRE4041 as a pin-for-pin compatible alternative to LM4041 voltage references. Verify that substitute parts match the 1.225V output and SOT-23 package dimensions.

FAQ

Is the ZXRE4041 stable with capacitive loads?

Yes, the device is designed to be highly tolerant of capacitive loads while maintaining unconditional stability.

What is the minimum operating current for this reference?

The minimum operating current (knee current) is specified as 30µA.