LM4132DMFX-2.0

Voltage Reference Overview

The LM4132DMFX-2.0 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 2.048 V with an initial accuracy of ±0.05%. The device features a temperature coefficient of 20 ppm/°C and supports a maximum input voltage of 6 V. It operates within a junction temperature range of -40°C to +125°C and includes a shutdown enable feature for power management.

Voltage Reference Feature Summary

• Provides high-precision fixed voltage reference with tight initial accuracy tolerance
• Integrates low-dropout regulator topology for stable output performance
• Includes dedicated shutdown pin to minimize current consumption during inactive periods

Voltage Reference Applications

• Precision data acquisition systems requiring stable reference sources
• Battery-powered instrumentation utilizing low quiescent current operation
• Industrial control circuits demanding wide temperature stability

Voltage Reference Procurement Notes

Verify the specific suffix configuration against the manufacturer datasheet to ensure compatibility with required accuracy grades and packaging options. Confirm that the SOT-23-5 footprint matches the target PCB layout constraints. Ensure the selected variant supports the necessary thermal operating range for the intended application environment.

Voltage Reference Selection Notes

Select this component when a compact form factor is required alongside high precision. The 2.048 V output is suitable for interfacing with ADCs and DACs. Consider the shutdown functionality if system power efficiency is critical. Verify that the 6 V maximum input voltage aligns with the available supply rails in the design.

Voltage Reference Part Context

This part belongs to the LM4132 family of micropower shunt voltage references. The family offers various output voltages and accuracy grades within the same SOT-23-5 package. The DMF suffix indicates a specific tape-and-reel packaging format optimized for automated assembly processes.

Voltage Reference Replacement Considerations

LM4132AMFX-2.0/NOPB: Offers similar precision but may differ in temperature coefficient specifications. LM4132EMFX-2.0/NOPB: Provides alternative accuracy grades within the same package. Verify electrical parameters and pinout compatibility before substitution.