LM4132DMFX-1.8

Voltage Reference Overview

The LM4132DMFX-1.8 is a precision series voltage reference manufactured by Texas Instruments, housed in a SOT-23-5 surface-mount package. It provides a fixed output voltage of 1.8 V with an initial accuracy of 0.05% and a temperature coefficient of 20 ppm/°C. The device supports a maximum input voltage of 5.5 V and a maximum shunt current of 20 mA. It operates within a temperature range of -40°C to +125°C and features a shutdown enable function.

Voltage Reference Feature Summary

• Provides high-precision voltage referencing with tight initial accuracy and low temperature drift for stable circuit operation.
• Integrates a shutdown enable feature to reduce power consumption when the reference is not actively required.
• Delivers reliable performance across a wide industrial temperature range suitable for demanding electronic environments.

Voltage Reference Applications

• Precision analog-to-digital converter (ADC) reference sources
• Data acquisition systems requiring stable voltage baselines
• Battery-powered instrumentation with low quiescent current needs

Voltage Reference Procurement Notes

Verify the specific suffix and marking code on the component body to confirm the 1.8 V output variant. Ensure the ordering part number matches the required tolerance and temperature grade specifications. Confirm package type compatibility during PCB layout review.

Voltage Reference Selection Notes

Select this component when a fixed 1.8 V reference with 0.05% accuracy is required in a compact SOT-23-5 footprint. Consider the shutdown capability if system power management is critical. Compare against other LM4132 variants for different voltage outputs or automotive qualifications.

Voltage Reference Part Context

This device belongs to the LM4132 family of micropower series voltage references from Texas Instruments. The family offers various fixed output voltages and accuracy grades, all sharing similar low-power characteristics and compact packaging options for portable and industrial applications.

Voltage Reference Replacement Considerations

LM4132DMFX-1.8/NOPB is the direct equivalent part number with lead-free compliance. Other LM4132 variants with different output voltages are not electrically compatible substitutes.