LM4132DMF-4.1

Voltage Reference Overview

The LM4132DMF-4.1 is a precision series voltage reference manufactured by Texas Instruments, delivering a nominal output of 4.096 V in a SOT-23 (5) package. It features an initial accuracy of ±0.4% and a temperature coefficient of 20 ppm/°C across the -40°C to +125°C operating range. The device operates with a supply current of 60 µA and supports up to 20 mA load current. It includes an enable pin for shutdown mode and functions within an input voltage range of VREF + 400 mV to 5.5 V.

Voltage Reference Feature Summary

• EEPROM-based laser-trimmed CMOS architecture for high stability
• Integrated enable pin for low-power shutdown control
• Capacitor-stable design without buffer amplifier requirements

Voltage Reference Applications

• Instrumentation and process control systems
• Data acquisition systems
• Portable battery-powered equipment
• Precision regulators

Voltage Reference Procurement Notes

Verify the specific grade suffix 'D' corresponds to the required 0.4% accuracy and 20 ppm/°C tempco specifications. Confirm the 'MF' suffix indicates the SOT-23 package variant. Ensure the '-4.1' designation matches the 4.096 V output requirement for your circuit design.

Voltage Reference Selection Notes

Select this component when space-constrained designs require a series reference with moderate precision. The D-grade offers a balance between cost and performance compared to higher grades. Consider the 20 mA drive capability and low quiescent current for battery applications.

Voltage Reference Part Context

This part belongs to the LM4132 family of precision voltage references. The family utilizes EEPROM registers for curvature correction and temperature compensation. Other variants include different voltage outputs and accuracy grades such as A, B, C, and E.

Voltage Reference FAQ

Does the LM4132DMF-4.1 require an output capacitor?

No, the device is stable with low-ESR ceramic capacitors and does not strictly require an output capacitor or buffer amplifier for operation.

What is the function of the EN pin?

The EN pin allows the device to be enabled or disabled. When pulled low, it activates a shutdown mode with significantly reduced supply current.