LM4132AMFX-3.0

Voltage Reference Overview

The LM4132AMFX-3.0/NOPB is a precision series voltage reference manufactured by Texas Instruments, housed in a SOT-23-5 package. It delivers a fixed output voltage of 3 V with an initial accuracy of ±0.05%. The device features a low temperature coefficient of 10 ppm/°C and operates within a junction temperature range of -40°C to +125°C. It supports a maximum load current of 20 mA and includes an enable pin for shutdown mode operation.

Voltage Reference Feature Summary

• EEPROM-based curvature correction for high precision
• Low dropout voltage capability
• Enable pin for power management

Voltage Reference Applications

• Data acquisition systems
• Portable battery-powered equipment
• Precision regulators

Voltage Reference Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free status and confirm the 'A' grade designation matches the required 0.05% accuracy specification. Ensure the ordering code aligns with the SOT-23-5 package variant. Cross-reference the manufacturer's latest datasheet revision to confirm electrical characteristics remain unchanged.

Voltage Reference Selection Notes

Select this component when high accuracy and low drift are critical in space-constrained designs. The CMOS architecture offers cost-effectiveness compared to laser-trimmed bipolar references. Consider the 60 µA supply current for battery life optimization and verify input voltage requirements against the specified dropout characteristics.

Voltage Reference Part Context

This part belongs to the LM4132 family of precision voltage references. The family utilizes CMOS technology with EEPROM registers for calibration. Other grades (B, C, D, E) offer lower accuracy but may provide different trade-offs in performance or cost within the same package footprint.

Voltage Reference Replacement Considerations

LM4132EMF-3.0/NOPB

Voltage Reference FAQ

Does the LM4132AMFX-3.0 require an output capacitor?

No, the device does not require an output capacitor or buffer amplifier for stability.

What is the function of the EN pin?

The EN pin allows the device to be placed into a shutdown mode with reduced supply current.