LT1009ILPE3

Voltage Reference Overview

The LT1009ILPRE3 is a fixed shunt voltage reference integrated circuit manufactured by Texas Instruments. It provides a stable 2.5 V output with an initial accuracy of ±0.2% and a temperature coefficient of 25 PPM/°C. The device operates within a junction temperature range of -40°C to +85°C and supports a maximum shunt current of 10 mA, with a minimum operating current of 400 µA. It is housed in a TO-92-3 through-hole package.

Voltage Reference Feature Summary

• Provides a precise 2.5 V fixed reference voltage suitable for high-accuracy applications
• Features low temperature drift characteristics for stable performance across varying thermal conditions
• Designed as a shunt reference requiring minimal external components for operation

Voltage Reference Applications

• Precision analog-to-digital converter (ADC) reference sources
• Digital-to-analog converter (DAC) voltage references
• Battery-powered instrumentation circuits
• High-resolution measurement systems

Voltage Reference Procurement Notes

Verify the specific suffix 'E3' indicates lead-free compliance and RoHS status before procurement. Confirm the package type matches the required TO-92-3 through-hole footprint. Check for end-of-life notifications as some variants may be discontinued. Ensure the ordering part number aligns exactly with the datasheet specifications for electrical parameters.

Voltage Reference Selection Notes

Select this component when a low-cost, through-hole shunt reference is required for 2.5 V applications. Consider the ±0.2% initial accuracy and 25 PPM/°C temperature coefficient against system requirements. Evaluate the 10 mA maximum current capability to ensure adequate load regulation. Compare against surface-mount alternatives if board space is constrained.

Voltage Reference Part Context

The LT1009 series represents a family of micro-power shunt voltage references from Texas Instruments. These devices are designed to replace Zener diodes in precision applications. The ILP variant specifically denotes the industry-standard TO-92 package configuration, offering a cost-effective solution for general-purpose voltage referencing tasks.

Voltage Reference Replacement Considerations

LT1009CLP: Same electrical specifications in TO-92 package without E3 suffix.