LT1009ILPRE3

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. It requires a minimum cathode current of 400 µA and supports a maximum shunt current of 10 mA. The component is housed in a TO-92-3 through-hole package, designed for applications requiring precise voltage regulation in compact form factors.

Voltage Reference Feature Summary

• Provides a fixed 2.5 V reference output with high initial accuracy
• Features low temperature drift characteristics for thermal stability
• Operates as a shunt reference with defined minimum and maximum current limits

Voltage Reference Applications

• Precision analog-to-digital converter (ADC) reference sources
• Digital-to-analog converter (DAC) voltage references
• Battery-powered instrumentation circuits
• Portable measurement equipment power management

Voltage Reference Procurement Notes

Verify the specific suffix PRE3 against the official datasheet to confirm package type and tape/reel specifications. Confirm RoHS compliance status and lead times directly with authorized distributors. Ensure the procurement channel is authorized to guarantee component authenticity and traceability. Check for any product change notifications that may affect pinout or electrical parameters before finalizing orders.

Voltage Reference Selection Notes

Select this component when a through-hole TO-92 package is required for a 2.5 V reference. Compare the 25 PPM/C temperature coefficient against application thermal requirements. Verify that the circuit design can maintain the minimum 400 µA cathode current while staying below the 10 mA maximum limit. Consider board space constraints and mounting style compatibility during the selection process.

Voltage Reference Part Context

The LT1009 series represents a family of precision shunt voltage references known for low noise and high stability. The ILPRE3 variant specifically denotes the through-hole TO-92 packaging option within this lineup. This series is widely used in industrial and consumer electronics where reliable voltage referencing is critical for signal integrity and measurement accuracy.

Voltage Reference Replacement Considerations

LT1009IDR: Surface mount SOIC-8 version with similar electrical characteristics. LT1009CD: Commercial grade SOIC-8 variant. LT1009IZ: Through-hole DO-35 glass axial package from Analog Devices.