LT1004CLPE3-2-5

Voltage Reference Overview

The LT1004CLPE3-2-5 is a micropower integrated voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 2.5 V with an initial accuracy of 0.8% and a temperature coefficient of 20 ppm/°C. The device operates within a supply voltage range of 2.5 V to 40 V and supports a maximum shunt current of 20 mA. It functions across a temperature range from -40°C to +85°C and is housed in an 8-pin PDIP package.

Voltage Reference Feature Summary

• Micropower integrated design for low current consumption
• Fixed 2.5 V precision output voltage
• Wide operating supply voltage range up to 40 V
• High stability with 20 ppm/°C temperature coefficient

Voltage Reference Applications

• Precision analog-to-digital converter (ADC) references
• Digital-to-analog converter (DAC) voltage sources
• Battery-powered instrumentation systems
• Portable measurement equipment requiring stable bias voltages

Voltage Reference Procurement Notes

Verify the specific suffix 'E4' indicates lead-free compliance per RoHS standards as documented by Texas Instruments. Confirm the package type matches the required 8-pin PDIP form factor for your PCB layout. Ensure the operating environment stays within the specified -40°C to +85°C range to maintain the stated 0.8% initial accuracy and 20 ppm/°C temperature performance characteristics.

Voltage Reference Selection Notes

Select this component when a stable, low-power 2.5 V reference is needed for battery-operated or portable devices. It is suitable for applications requiring moderate precision where a 0.8% initial accuracy and 20 ppm/°C drift are acceptable. Consider the 20 mA maximum shunt current limit when designing the series resistor network to ensure proper regulation without exceeding power dissipation limits.

Voltage Reference Part Context

This part belongs to the LT1004 family of micropower voltage references from Texas Instruments. It serves as a precision shunt reference alternative to Zener diodes, offering superior temperature stability and lower noise. The family includes variants with different output voltages and accuracies, but the LT1004CLPE3-2-5 specifically targets general-purpose precision applications requiring a reliable 2.5 V source.

Voltage Reference Replacement Considerations

LT1004IPWR-2-5: Different package (TSSOP-8 vs PDIP-8). Verify pin compatibility if replacing on existing boards.