LT1004IPW-1-2

Voltage Reference Overview

The LT1004IPW-1-2 is a micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 1.23 V with an initial accuracy of 0.3%. The device features a temperature coefficient of 20 ppm/°C and supports a maximum shunt current of 20 mA. It operates within a temperature range of -40°C to +85°C and is housed in an 8-pin SOIC package.

Voltage Reference Feature Summary

• Provides a stable 1.23 V reference voltage suitable for precision applications
• Delivers high initial accuracy of 0.3% for reliable performance
• Features low temperature drift of 20 ppm/°C for thermal stability
• Supports up to 20 mA shunt current for load regulation

Voltage Reference Applications

• Precision analog-to-digital converter (ADC) references
• Data acquisition systems requiring stable voltage sources
• Portable instrumentation powered by battery supplies
• Industrial control circuits needing accurate voltage benchmarks

Voltage Reference Procurement Notes

Verify the specific suffix IPW corresponds to the SOIC-8 package variant when sourcing. Confirm the -1-2 designation aligns with the 1.23 V output requirement. Ensure the supplier documentation matches the Texas Instruments LT1004 series specifications for accuracy and temperature coefficient compliance before integration.

Voltage Reference Selection Notes

Select this component when a fixed 1.23 V reference is required with moderate accuracy. Consider the 20 ppm/°C drift for thermal environments. The 20 mA shunt capability allows for direct driving of low-impedance loads. Compare against higher precision alternatives if tighter tolerance than 0.3% is necessary.

Voltage Reference Part Context

The LT1004 series represents a family of micropower shunt voltage references designed for general-purpose use. This specific part belongs to the standard accuracy tier, offering a balance between cost and performance. It serves as a foundational reference element in mixed-signal circuits where power consumption and space are constrained.

Voltage Reference Replacement Considerations

• LT1004IPWR-1-2
• LT1004IS8-1.2#PBF

Voltage Reference FAQ

What is the maximum shunt current for the LT1004IPW-1-2?

The maximum shunt current is 20 mA.

Does the LT1004IPW-1-2 have a shutdown pin?

No, the LT1004 is a continuous operation shunt reference without a dedicated shutdown feature.