LM4040D10ILP

Overview

The LM4040D10ILP 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%. The device operates within an ambient temperature range of -40°C to 85°C and features a maximum temperature coefficient of 150ppm/°C. It utilizes a TO-92-3 package for through-hole mounting. The component requires a minimum cathode current of 45μA (typical) and supports a maximum continuous cathode current of 15mA. It exhibits low dynamic impedance and wideband noise characteristics suitable for stable reference applications.

Feature Summary

• Provides a fixed 10V output with tight initial accuracy tolerances
• Operates stably with all capacitive loads without requiring external output capacitors
• Features low dynamic impedance and low noise for precise voltage regulation
• Designed for micropower applications with a wide operating current range

Applications

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

Procurement Notes

Verify the specific suffix 'ILP' corresponds to the TO-92-3 through-hole package variant when sourcing. Confirm that the D grade designation aligns with the required 1% accuracy and 150ppm/°C temperature coefficient specifications for your design. Ensure the industrial temperature range (-40°C to 85°C) meets your environmental operating requirements before finalizing procurement.

Selection Notes

Select this component when a fixed 10V reference is needed in a through-hole configuration. The D grade offers a balance of cost and performance with 1% accuracy. Consider the minimum operating current of 45μA to ensure proper biasing in low-power designs. Verify that the thermal resistance and power dissipation capabilities are sufficient for the expected cathode current levels in the target application.

Part Context

This part belongs to the LM4040 series of shunt voltage references, which includes A, B, C, and D grades offering varying levels of accuracy and temperature stability. The series is designed for versatile use in portable and general-purpose electronics. The LM4040 family is characterized by its ease of use, requiring no external components for basic operation while maintaining stability across a wide range of load conditions and temperatures.

FAQ

Does the LM4040D10ILP require an output capacitor for stability?

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

What is the maximum continuous cathode current for this device?

The maximum continuous cathode current is 15mA, as specified in the recommended operating conditions.