LM4132EMFX-1.8/NOPB

Voltage Reference Overview

The LM4132EMFX-1.8/NOPB is a precision shunt voltage reference IC manufactured by Texas Instruments, featuring a fixed output of 1.8V with an initial accuracy of ±0.5%. It operates within a supply voltage range up to 6V and supports a maximum shunt current of 20mA. The device exhibits a temperature coefficient of 20ppm/°C and consumes 60µA of operating current. It is housed in a compact SOT-23-5 package and functions reliably across an extended temperature range from -40°C to +125°C.

Voltage Reference Feature Summary

• Provides stable 1.8V reference output with high initial accuracy
• Features low temperature drift for consistent performance
• Includes shutdown capability for power optimization
• Designed for compact surface-mount integration

Voltage Reference Applications

• Portable battery-powered instrumentation
• Data acquisition systems requiring precise references
• Microcontroller analog-to-digital converter inputs
• Medical equipment signal conditioning

Voltage Reference Procurement Notes

Verify the complete part number including the suffix to ensure correct voltage and tolerance specifications. Confirm RoHS compliance status through official manufacturer documentation before procurement. Check for specific packaging options such as cut tape or reel availability directly with authorized distributors. Ensure the supplier provides valid traceability documents for quality assurance purposes.

Voltage Reference Selection Notes

Select this component when a fixed 1.8V reference with ±0.5% accuracy is required. Consider the 20ppm/°C temperature coefficient for thermal stability needs. Evaluate the 60µA quiescent current against system power budgets. Ensure the SOT-23-5 footprint matches the PCB layout constraints and that the 20mA shunt current capability meets load requirements.

Voltage Reference Part Context

This device belongs to the LM4132 series of precision micropower shunt voltage references. It shares the same pinout and general functionality as other variants in the family, differing primarily in output voltage and accuracy grades. The series is designed for applications demanding high stability and low power consumption in small packages.

Voltage Reference Replacement Considerations

LM4132AMFX-1.8/NOPB offers tighter accuracy at ±0.05%. LM4132BMFX-1.8/NOPB provides intermediate accuracy at ±0.1%. LM4132DMFX-1.8/NOPB features lower accuracy at ±0.5% but may differ in noise characteristics. Verify pin compatibility and thermal performance when substituting.