LM4040DIM3X-10-NS

Overview

The LM4040DIM3X-10-NS is a precision micropower shunt voltage reference manufactured by National Semiconductor. It provides a fixed output voltage of 10V with an initial accuracy of ±1%. The device operates within an industrial temperature range of -40°C to +125°C and features a maximum temperature coefficient of 70 ppm/°C. It supports a maximum output current of 15 mA and exhibits ultra-low operating current characteristics, typically 10 µA at 25°C. The component is housed in a compact SOT-23-3L package, suitable for space-constrained designs.

Feature Summary

• Provides stable fixed output voltage over the industrial temperature range
• Ultra-low operating current suitable for power-restricted designs
• High precision with low temperature coefficient for accurate referencing
• Capable of driving capacitive loads while maintaining stability

Applications

• Portable instrumentation requiring precise voltage references
• Battery-powered systems where low quiescent current is critical
• Data acquisition systems needing stable analog references
• Industrial control circuits requiring wide temperature operation

Procurement Notes

Verify that the specific suffix 'NS' aligns with National Semiconductor manufacturing specifications rather than generic distributor codes. Confirm the package marking matches the SOT-23-3L physical dimensions. Ensure the datasheet version corresponds to the production lot date code to guarantee compliance with the stated electrical parameters and environmental ratings.

Selection Notes

Select this component when a fixed 10V reference is required with high accuracy and low power consumption. Consider the SOT-23-3L package size for PCB layout constraints. Evaluate the thermal environment to ensure operation remains within the -40°C to +125°C range. Compare against other LM4040 variants if different output voltages or tighter accuracy grades are needed.

Part Context

This part belongs to the LM4040 family of precision micropower shunt voltage references. The series offers various output voltages including 2.048V, 2.5V, 3.0V, 4.096V, and 5.0V, alongside the 10V option. Variants differ by accuracy grade (A, B, C, D) and package type (SOT-23-3L, SOT-323-5L). The DIM3X designation indicates the specific pinout and package configuration for this 10V version.

Replacement Considerations

LM4040DIM3-10.0/NOPB serves as a direct equivalent from Texas Instruments, offering identical electrical specifications and pinout compatibility. Verify that the replacement part maintains the same SOT-23-3L package and 10V fixed output requirement.