LM4132AMFX-4.1

Voltage Reference Overview

The LM4132AMFX-4.1 is a precision low dropout voltage reference from Texas Instruments, housed in a 5-pin SOT-23 package. It provides a fixed output voltage of 4.096 V with an initial accuracy of ±0.05%. The device features a temperature coefficient of 10 ppm/°C and operates within a junction temperature range of -40°C to +125°C. It draws a typical supply current of 60 µA and supports a maximum load current of 20 mA. The input voltage range extends from VREF + 400 mV up to 5.5 V.

Voltage Reference Feature Summary

• Utilizes EEPROM registers for curvature correction and package-level programming to maintain high accuracy.
• Includes an enable pin that facilitates a low-power shutdown mode with minimal quiescent current consumption.
• Capable of delivering up to 20 mA of output current without requiring an external output capacitor or buffer amplifier.

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix 'F' indicates tape-and-reel packaging when ordering. Confirm the '-4.1' designation corresponds to the 4.096 V output variant. Ensure compatibility with the required SOT-23 footprint and check for any automotive qualification requirements if applicable to the target application environment.

Voltage Reference Selection Notes

Select this component when high initial accuracy and low temperature drift are critical. The A-grade specification ensures tight tolerance limits suitable for precision measurement circuits. Consider the low dropout characteristic for applications where the input voltage margin is limited relative to the reference output.

Voltage Reference Part Context

This part belongs to the LM4132 family of CMOS-based precision voltage references. The family offers various output voltages and grades (A through E) to balance performance and cost. The LM4132 series is designed to compete with laser-trimmed bipolar references while offering space-saving SOT-23 packaging and lower power consumption.

Voltage Reference Replacement Considerations

LM4132AMF-4.1/NOPB