LM4040D10IDBZR

Overview

The LM4040D10IDBZR 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 ±1% and a maximum temperature coefficient of 150ppm/°C. The device operates within a cathode current range from a minimum of 74µA to a maximum of 15mA. It is characterized for operation over an ambient temperature range of -40°C to +85°C. The component is housed in a space-saving SOT-23 surface-mount package.

Feature Summary

• Provides stable reference voltage using fuse and Zener-zap reverse breakdown voltage trim during wafer sort
• Operates without external output capacitors while remaining stable with all capacitive loads
• Features low dynamic impedance and low noise characteristics for consistent performance across varying currents and temperatures

Applications

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

Procurement Notes

Verify the specific suffix 'DBZR' corresponds to the SOT-23-3 package and tape-and-reel delivery format as documented in the manufacturer's orderable addendum. Confirm that the industrial temperature grade (I) meets the operational requirements of the target environment, noting that extended temperature variants utilize different suffixes. Ensure compatibility with standard surface-mount assembly processes for the specified footprint dimensions.

Selection Notes

Select this component when a 10V fixed reference with moderate precision is required for portable or space-constrained designs. The D-grade specification offers a balance between cost and performance for applications not requiring sub-percent accuracy. Consider the minimum operating current of 74µA when designing biasing networks to ensure regulation is maintained under light load conditions.

Part Context

This part belongs to the LM4040 series of micropower shunt voltage references, which includes A, B, C, and D grades offering varying levels of accuracy and temperature stability. The series supports multiple fixed output voltages including 2.048V, 2.5V, 3V, 4.096V, 5V, 8.192V, and 10V. The LM4040 family is designed for versatility, utilizing reverse breakdown voltage trimming to achieve tight tolerances across different operating conditions.

Replacement Considerations

LM4040D10IDBZRG4