LM4040DIZ-4.1

Overview

The LM4040DIZ-4.1 is a micropower shunt voltage reference manufactured by National Semiconductor, providing a fixed output of 4.096 V with an initial accuracy of 1%. It operates within a temperature range of -40 °C to +85 °C and features a maximum temperature coefficient of 150 ppm/°C. The device supports a maximum shunt current of 15 mA and utilizes a SOIC-8 surface-mount package.

Feature Summary

• Provides stable precision voltage reference performance across industrial temperature ranges
• Designed for space-constrained applications using compact surface-mount packaging
• Operates efficiently with low power consumption suitable for battery-powered systems

Applications

• Portable electronic devices requiring precise voltage regulation
• Battery-operated instrumentation circuits
• Data acquisition systems needing stable reference voltages

Procurement Notes

Verify the manufacturer origin as National Semiconductor, noting that Texas Instruments acquired the product line. Confirm the specific suffix 'I' indicates industrial temperature range operation and 'Z' denotes lead-free status. Ensure compatibility with SOIC-8 footprint requirements during integration.

Selection Notes

Select this component when a 4.096 V reference with 1% tolerance is required in an SOIC-8 package. Consider the 150 ppm/°C temperature coefficient against stricter stability needs. Evaluate the 15 mA maximum shunt current capability against circuit load requirements.

Part Context

Part of the LM4040 family of micropower shunt references offering various accuracies and voltages. Designed for applications prioritizing low power consumption and high precision in compact form factors.

Replacement Considerations

Check for direct equivalents from Texas Instruments such as LM4040DIZ-4.1/NOPB. Verify pinout compatibility and thermal characteristics before substitution.