LM4128BMF-4.1/NOPB

Voltage Reference Overview

The LM4128BMF-4.1/NOPB is a precision micropower shunt voltage reference manufactured by Texas Instruments, designed for applications requiring stable and accurate voltage regulation in compact form factors. This component delivers a nominal output voltage of 4.096 V with an initial accuracy of 0.2 percent, ensuring high precision across varying operating conditions. It operates within a temperature range from -40 degrees Celsius to +125 degrees Celsius and features a maximum shunt current of 20 mA. The device is housed in a five-pin SOT-23 surface-mount package, facilitating easy integration into space-constrained circuit designs while maintaining low power consumption characteristics.

Voltage Reference Feature Summary

• Provides a fixed 4.096 V output with 0.2% initial accuracy for precise regulation
• Operates over an extended industrial temperature range from -40°C to +125°C
• Features low power consumption suitable for battery-powered portable devices
• Utilizes a compact SOT-23-5 surface-mount package for efficient board space utilization

Voltage Reference Applications

• Portable instrumentation requiring stable reference voltages
• Battery-powered measurement systems needing low quiescent current
• Data acquisition systems utilizing analog-to-digital converters
• Medical equipment requiring high precision voltage regulation

Voltage Reference Procurement Notes

Verify the complete part number including suffixes such as NOPB to ensure compliance with lead-free manufacturing standards. Confirm that the specific variant matches the required output voltage and accuracy grade for your application. Check manufacturer documentation for any recent product change notices or lifecycle status updates before finalizing procurement decisions.

Voltage Reference Selection Notes

Select this component when a stable 4.096 V reference is needed with tight tolerance requirements. Consider the SOT-23 package size if board space is limited. Ensure the operating environment stays within the specified temperature range. Evaluate power budget constraints as the device draws minimal current, making it suitable for energy-efficient designs.

Voltage Reference Part Context

This device belongs to the LM4128 series of micropower shunt voltage references from Texas Instruments. The series offers various output voltages and accuracy grades to suit different design needs. The LM4128 family is known for its stability and low noise, making it a common choice in precision analog circuits where reliable voltage referencing is critical for overall system performance.

Voltage Reference Replacement Considerations

Compatible substitutes include other LM4128 variants with similar voltage outputs and accuracy levels. Verify pinout compatibility and thermal characteristics when replacing components. Ensure that alternative parts meet the same temperature and current specifications to maintain circuit integrity.