LM4040CIZ-10.0

Overview

The LM4040CIZ-10.0 is a precision micropower shunt voltage reference manufactured by Texas Instruments, featuring a fixed reverse breakdown voltage of 10 V. It operates within an industrial temperature range of -40°C to +85°C and utilizes a SOT-23 surface-mount package. The device provides a C-grade tolerance of ±0.5% at 25°C with a maximum temperature coefficient of 100 ppm/°C. Minimum operating current is specified at 100 μA, while the maximum operating current reaches 15 mA.

Feature Summary

• Eliminates the need for external stabilizing capacitors while ensuring stability with any capacitive load
• Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort to ensure high accuracy
• Incorporates bandgap reference temperature drift curvature correction for stable performance across wide temperature ranges

Applications

• Portable, battery-powered equipment
• Data acquisition systems
• Instrumentation
• Process controls
• Precision audio components

Procurement Notes

Verify that the specific ordering suffix matches the required tolerance grade and package type. Confirm the manufacturer identification on the component marking aligns with Texas Instruments specifications. Ensure the part number corresponds to the correct voltage output and operational temperature range before procurement.

Selection Notes

Select this component when space-critical applications require a precise voltage reference in a sub-miniature SOT-23 package. It is suitable for designs needing stability with capacitive loads without external compensation. Consider the minimum operating current requirements relative to the 10 V output version specifications.

Part Context

This device belongs to the LM4040-N family of precision micropower shunt voltage references. The family includes various fixed reverse breakdown voltages such as 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, and 8.192 V. Other package options include TO-92 and SC70, providing flexibility for different board layout constraints.

Replacement Considerations

LM4040DIM3-10.0/NOPB

FAQ

Does the LM4040CIZ-10.0 require an external capacitor for stability?

No, the advanced design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load.

What is the minimum operating current for the 10-V version?

The minimum operating current increases from 60 μA for lower voltage versions to 100 μA for the 10-V LM4040-N.