LM4041A12IDCKR

Overview

The LM4041A12IDCKR is a precision shunt voltage reference from Texas Instruments featuring a fixed output of 1.225V with an initial accuracy of ±0.1%. It operates within a temperature range of -40°C to +85°C and exhibits a maximum temperature coefficient of 100 ppm/°C. The device supports a shunt current range from 60µA to 12mA, with a typical noise of 20µVRMS (10Hz to 10kHz). It utilizes a SC-70-5 surface-mount package.

Feature Summary

• Provides high-precision fixed voltage reference with ±0.1% initial accuracy
• Operates stably across a wide current range without requiring external capacitors
• Features low output noise for sensitive analog applications

Applications

• Data acquisition systems
• Portable battery-powered equipment
• Precision measurement instruments

Procurement Notes

Verify the specific suffix IDCKR corresponds to the SC-70-5 package and reel packaging configuration. Confirm the A-grade designation matches the required ±0.1% tolerance and 100 ppm/°C temperature coefficient specifications for your design constraints.

Selection Notes

Select this component when a fixed 1.225V reference with tight ±0.1% tolerance is required in a compact SC-70-5 footprint. It is suitable for designs needing stability without external compensation capacitors and operating within industrial temperature limits.

Part Context

This part belongs to the LM4041 family of micropower shunt voltage references. The family offers various accuracy grades and packages, including SOT-23 and TO-92. The LM4041 series is designed for portable applications due to its low minimum operating current and small form factor options.

Replacement Considerations

LM4041B12IDCKR (±0.2% accuracy), LM4041C12IDCKR (±0.5% accuracy). Verify package compatibility and electrical parameter differences before substitution.