LM4040C10IDBZR

Overview

The LM4040C10IDBZR 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 temperature coefficient of 100ppm/°C. It requires a minimum cathode current of 125µA and supports a maximum operating current of 15mA. The component is housed in a space-saving SOT-23-3 surface-mount package.

Feature Summary

• Provides a stable 10V reference voltage with tight manufacturing tolerances for high-precision applications
• Operates efficiently at low currents, requiring only 125µA minimum cathode current
• Maintains voltage stability across the industrial temperature range with a low temperature coefficient
• Designed for compact designs using a small SOT-23-3 surface-mount package

Applications

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

Procurement Notes

Verify the specific suffix 'DBZR' corresponds to the SOT-23-3 package and tape-and-reel delivery format. Confirm the 'C' grade designation matches the required 0.5% accuracy and 100ppm/°C temperature coefficient specifications. Ensure the 'I' suffix aligns with the -40°C to +85°C industrial temperature range requirements for your specific design environment.

Selection Notes

Select this component when a fixed 10V reference is needed with moderate precision (0.5%) in a compact form factor. It is suitable for battery-powered or power-sensitive designs due to its low minimum operating current. Consider alternative grades if tighter tolerance or extended temperature ranges are required.

Part Context

This part belongs to the LM4040 series of micropower shunt voltage references from Texas Instruments. The series offers various fixed output voltages and accuracy grades (A, B, C, D) to balance cost and performance. The LM4040C10IDBZR specifically represents the C-grade version with 10V output in the SOT-23-3 package.

FAQ

Does the LM4040C10IDBZR require an external capacitor for stability?

No, the LM4040 series is designed to be stable with all capacitive loads and does not require an output capacitor for operation.

What is the minimum current required to operate the LM4040C10IDBZR?

The device requires a minimum cathode current of 125µA to maintain regulation and proper operation.