LM4040A10IDCKR

Overview

The LM4040A10IDCKR is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 10V with an initial accuracy of ±0.1% and a maximum temperature coefficient of 100ppm/°C. The device operates within a cathode current range of 45μA to 15mA and functions over an ambient temperature range of -40°C to 85°C. It is housed in a space-saving SC-70-5 package.

Feature Summary

• Offers high precision with tight output tolerances and low temperature coefficients for stable performance.
• Requires no external capacitors for operation and remains stable with all capacitive loads.
• Features low dynamic impedance, low noise, and wide operating current range.
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort.

Applications

• Data-Acquisition Systems
• Energy Infrastructure
• Analog Input Module
• Field Transmitters
• Precision Audio

Procurement Notes

Verify the specific ordering suffix 'DCKR' corresponds to the SC-70-5 package configuration when sourcing. Confirm that the 'I' suffix indicates the industrial temperature range (-40°C to 85°C) required for your application environment. Ensure compatibility with standard surface-mount assembly processes for the specified package type.

Selection Notes

Select this component when a 10V fixed reference with A-grade precision (±0.1%) is required. It is suitable for portable applications due to its micropower characteristics and minimum operating current of 45μA. Consider the SC-70-5 package if board space is limited compared to larger packages like SOT-23 or TO-92.

Part Context

This part belongs to the LM4040 series of shunt voltage references from Texas Instruments. The series includes various grades (A, B, C, D) offering different accuracy levels and temperature coefficients. The LM4040A10IDCKR represents the highest precision grade (A) at the 10V output level in the industrial temperature variant.

Replacement Considerations

LM4040B10IDCKR offers similar functionality with 0.2% accuracy. LM4040C10IDCKR provides 0.5% accuracy. LM4040D10IDCKR provides 1.0% accuracy. For extended temperature ranges, consider LM4040xxxQ variants.