LM4041D12ILPR

Voltage Reference Overview

The LM4041D12ILPR is a precision micropower shunt voltage reference from Texas Instruments, featuring a fixed nominal output of 1.225V. It belongs to the D-grade series with an initial accuracy tolerance of ±1% and a temperature coefficient of 150 ppm/°C. The device operates within a wide current range, typically starting at 60µA up to a maximum cathode current of 12mA. Designed for stability across all capacitive loads without requiring external output capacitors, it functions reliably in industrial environments with a specified operating temperature range of -40°C to +85°C.

Voltage Reference Feature Summary

• Provides stable reference voltage across all capacitive loads without requiring external output capacitors
• Utilizes Zener-zap trimming technology to ensure precise initial accuracy and low temperature drift
• Operates efficiently with micropower consumption suitable for battery-powered applications
• Maintains low dynamic impedance and low noise characteristics for signal integrity

Voltage Reference Applications

• Data acquisition systems requiring stable reference voltages
• Portable and battery-powered equipment where power efficiency is critical
• Process control instrumentation and monitoring circuits
• Precision audio applications demanding low noise performance

Voltage Reference Procurement Notes

Verify the specific suffix ILPR confirms the SOT-23-3 surface-mount package and industrial temperature rating (-40°C to +85°C). Confirm the D-grade designation corresponds to the required ±1% accuracy and 150 ppm/°C temperature coefficient for your design specifications. Ensure compatibility with standard reflow soldering profiles for this package type.

Voltage Reference Selection Notes

Select this component when a fixed 1.225V reference is needed with moderate precision requirements. The D-grade offers a cost-effective solution compared to higher accuracy grades while maintaining stability across the full industrial temperature range. Consider the minimum operating current of 60µA to ensure adequate biasing in low-power designs.

Voltage Reference Part Context

This part belongs to the LM4041 family of precision shunt voltage references. The family includes adjustable versions and various accuracy grades (A, B, C, D) with different temperature coefficients. The LM4041 series is widely used in general-purpose analog circuits where a reliable, compact voltage reference is essential for ADCs, DACs, and comparator thresholds.

Voltage Reference Replacement Considerations

LM4041D12IDCKR: Fixed 1.225V, 1% accuracy, SC-70-5 package, same electrical performance but different footprint.

Voltage Reference FAQ

Does the LM4041D12ILPR require an external capacitor for stability?

No, the device is designed to be stable with all capacitive loads and does not require an external output capacitor.

What is the minimum operating current for this device?

The typical minimum operating current is 60µA, allowing for efficient operation in low-power applications.