LM4041DIZ-ADJ

Voltage Reference Overview

The LM4041DIZ-ADJ is a precision micropower shunt voltage reference manufactured by National Semiconductor. It provides an adjustable output voltage ranging from 1.233V to 10V using external resistors. Key electrical parameters include a maximum initial tolerance of 1.0% and a temperature coefficient of 150ppm/°C. The device operates with a cathode current range of 45µA to 12mA and exhibits typical low noise of 20µVRMS. It is housed in a TO-92-3 package suitable for through-hole mounting.

Voltage Reference Feature Summary

• Adjustable output voltage capability between 1.225V and 10V via external resistor divider
• High precision with tight output tolerance and low temperature coefficient
• Micropower operation with low dynamic impedance and low noise characteristics

Voltage Reference Applications

• Portable battery-powered equipment
• Data acquisition systems
• Instrumentation and process control
• Precision audio components

Voltage Reference Procurement Notes

Verify the manufacturer status as National Semiconductor was acquired by Texas Instruments. Confirm the specific suffix DIZ-ADJ corresponds to the TO-92-3 through-hole package and adjustable version. Check for end-of-life notices or obsolescence warnings, as older NS parts may have limited availability or require substitution with TI equivalents.

Voltage Reference Selection Notes

Select this component when an adjustable shunt reference is required in space-constrained through-hole designs. Ensure the application current stays within the 45µA to 12mA operating range. Consider the 150ppm/°C temperature coefficient against stricter stability requirements. Verify that the 1.0% initial tolerance meets the system accuracy needs without additional calibration.

Voltage Reference Part Context

The LM4041 series is a family of precision micropower shunt voltage references originally developed by National Semiconductor. These devices are designed to replace Zener diodes in applications requiring higher stability and lower noise. The adjustable variant allows designers to set precise reference voltages using standard resistor networks, offering flexibility in power supply design and measurement circuits.

Voltage Reference Replacement Considerations

Texas Instruments LM4041DIZ-ADJ/NOPB is a confirmed direct substitute.