LM4132EMFX-1.8

Voltage Reference Overview

The LM4132EMFX-1.8 is a precision series voltage reference manufactured by Texas Instruments, housed in an SOT-23-5 surface-mount package. It provides a fixed output voltage of 1.8 V with an initial accuracy of ±0.5%. The device features a temperature coefficient of 20 ppm/°C and supports a maximum shunt current of 20 mA. It operates within an input voltage range up to 5.5 V and functions across a temperature range of -40°C to +125°C. Quiescent current is typically 60 µA, with a maximum of 100 µA.

Voltage Reference Feature Summary

• Provides stable fixed voltage output for high-precision applications
• Features low temperature drift for consistent performance over wide thermal ranges
• Includes shutdown capability to minimize power consumption when inactive

Voltage Reference Applications

• Data acquisition systems requiring precise analog references
• Portable instrumentation powered by battery sources
• Industrial process control loops
• Medical equipment signal conditioning

Voltage Reference Procurement Notes

Verify the specific suffix against official documentation to confirm pinout compatibility and electrical tolerances. Ensure the ordering code matches the required package style and shipping format. Cross-reference the manufacturer part number with the latest datasheet revision to validate all technical specifications before integration into designs.

Voltage Reference Selection Notes

Select this component when a fixed 1.8 V reference is required with moderate accuracy and low quiescent current. Consider the SOT-23-5 footprint for space-constrained layouts. Evaluate the 20 ppm/°C drift specification against system thermal requirements. Confirm that the 20 mA load current capability meets the downstream circuit demands.

Voltage Reference Part Context

This device belongs to the LM4132 family of micropower shunt voltage references. The family offers various fixed output voltages and accuracy grades. The LM4132 series is designed for applications demanding stability and low power consumption in compact packages. It serves as a benchmark for precision references in portable and industrial electronics.

Voltage Reference Replacement Considerations

LM4132DMFX-1.8/NOPB: Offers improved initial accuracy of ±0.2% while maintaining similar electrical characteristics and package type.