LM4040C10IDCKR

Overview

The LM4040C10IDCKR is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 10V with an initial accuracy tolerance of ±0.5%. The device operates within an ambient temperature range of -40°C to +85°C and features a maximum average temperature coefficient of 100ppm/°C. Packaged in a space-saving SC-70 (DCK) format, it requires a minimum cathode current of 45μA typical and supports up to 15mA. The component exhibits low dynamic impedance and wideband noise characteristics suitable for sensitive analog circuits.

Feature Summary

• Provides stable reference voltage without requiring external output capacitors
• Maintains stability across all capacitive load conditions
• Offers low dynamic impedance and low noise performance
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort

Applications

• Data-acquisition systems
• Energy infrastructure monitoring
• Analog input modules
• Field transmitters
• Precision audio equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest Package Option Addendum to confirm package type and availability status. Ensure the selected grade meets the required initial accuracy and temperature coefficient specifications for the target application environment. Cross-reference the datasheet revision date to validate electrical characteristic limits before finalizing procurement orders.

Selection Notes

Select this component when a 10V fixed reference is required in a compact surface-mount footprint. The C-grade offers a balance of cost and performance with 0.5% accuracy. Consider the SC-70 package dimensions for board space constraints. Verify that the operating current remains within the recommended range to maintain specified noise and impedance parameters throughout the industrial temperature span.

Part Context

This part belongs to the LM4040 series of shunt voltage references from Texas Instruments. The series includes multiple grades (A, B, C, D) offering varying levels of accuracy and temperature coefficients. The 'I' suffix indicates characterization for the industrial temperature range (-40°C to +85°C), while the 'DCK' designation specifies the 5-pin SC-70 package configuration used for space-efficient designs.

Replacement Considerations

LM4040C10IDCKRG4