ZXRE4041DR

Overview

The ZXRE4041DR is a micropower shunt voltage reference manufactured by Diodes Incorporated, providing a precise 1.225V output. It utilizes a bandgap circuit topology and is housed in an SOT-23 surface-mount package. The device features a typical temperature coefficient of 20ppm/°C and maintains stability across an operating current range from 30µA to 12mA. It offers a 1% initial accuracy tolerance and operates reliably within a temperature range of -40°C to +125°C.

Feature Summary

• Provides a stable 1.225V precision reference with low power consumption
• Features a small outline SOT-23 package for space-constrained designs
• Maintains excellent stability under capacitive load conditions
• Offers high performance as a direct alternative to LM4041 references

Applications

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

Procurement Notes

Verify the specific suffix 'D' indicates the 1% tolerance grade when ordering. Confirm the package type matches the required SOT-23 footprint. Ensure the application environment stays within the specified -40°C to +125°C operating temperature range. Check that the bias current requirements fall between the 30µA minimum knee current and the 12mA maximum operating limit.

Selection Notes

Select this component for applications requiring a compact, low-power voltage reference. The 1.225V output is suitable for low-voltage analog circuits. Consider the 20ppm/°C temperature coefficient for thermal stability needs. Verify compatibility with existing PCB layouts designed for SOT-23 packages. Evaluate if the 1% tolerance meets the system's precision requirements compared to tighter grades.

Part Context

This part belongs to the ZXRE4041 series of micropower voltage references from Diodes Incorporated. The series includes variants with different tolerance grades, such as C (0.5%) and F (2%). The ZXRE4041DR specifically denotes the 1% tolerance version in the SOT-23 package. It serves as a modern replacement for legacy components like the LM4041.

Replacement Considerations

The datasheet identifies the ZXRE4041 as a pin-for-pin compatible alternative to the LM4041 voltage reference. When substituting, verify that the load current and temperature specifications align with the original design constraints.