LT1009CLPE3

Voltage Reference Overview

The LT1009CLPE3 is a fixed shunt voltage reference integrated circuit manufactured by Texas Instruments. It provides a nominal output voltage of 2.5 V with an initial accuracy of ±0.2%. The device operates within a temperature range of -40°C to +85°C and features a temperature coefficient of 25 PPM/°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.

Voltage Reference Feature Summary

• Provides a stable 2.5 V reference voltage with high initial accuracy.
• Operates reliably across extended industrial temperature ranges.
• Utilizes a low-cost, three-pin through-hole package for easy integration.

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify the specific suffix 'E3' against the manufacturer's latest documentation to confirm lead-free compliance status and exact pinout configuration. Ensure the selected package variant matches the PCB footprint requirements. Confirm availability as some variants may be subject to production lifecycle changes or obsolescence notices.

Voltage Reference Selection Notes

Select this component when a low-cost, through-hole voltage reference is required for general-purpose precision applications. The 2.5 V output is suitable for single-supply systems. Consider the thermal resistance of the TO-92 package and ensure adequate heat dissipation if operating near the maximum shunt current limit of 10 mA.

Voltage Reference Part Context

The LT1009 series represents a family of low-power, two-terminal shunt voltage references. These devices are designed to replace Zener diodes in applications requiring better stability and lower noise. The CLPE3 variant specifically denotes the commercial grade version packaged in a standard TO-92 case, offering a balance between performance and cost for mass-produced electronics.

Voltage Reference Replacement Considerations

LT1009CLP: Identical electrical specifications and package; verify RoHS compliance status differences.

Voltage Reference FAQ

What is the minimum operating current for the LT1009CLPE3?

The device requires a minimum cathode current of 400 µA to maintain regulation within specified accuracy limits.

Is the LT1009CLPE3 adjustable?

No, the LT1009CLPE3 is a fixed-output voltage reference providing a nominal 2.5 V output.