REF1004I-1.2

Overview

The REF1004I-1.2 is a micropower shunt voltage reference manufactured by Texas Instruments, designed for precision applications requiring stable voltage regulation. It provides a fixed output voltage of 1.2 V with an initial accuracy of 0.3% and a temperature coefficient of 20 ppm/°C. The device operates within a supply current range of 20 µA to 20 mA and functions reliably across a temperature range of -40°C to +85°C. Housed in an SOIC-8 surface-mount package, it serves as a compact solution for power-sensitive designs.

Feature Summary

• Micropower operation suitable for battery-powered instruments
• High precision with low temperature drift characteristics
• Compact surface-mount packaging for space-constrained designs

Applications

• Battery-powered instruments
• Building security sensors
• Medical equipment
• Field transmitters
• Calibrators

Procurement Notes

Verify the specific suffix and package type against official datasheets to ensure compatibility with design requirements. Confirm operating temperature ranges and accuracy grades match application needs. Check for moisture sensitivity levels and recommended soldering profiles during procurement planning.

Selection Notes

Select this component when a low-power, high-precision shunt reference is required in a small form factor. Consider the 20 ppm/°C temperature coefficient and 0.3% initial accuracy for critical measurement systems. Ensure the operating current range aligns with system power budget constraints.

Part Context

Part of the REF1004 series, offering improved performance over legacy LT1004 devices. Designed for applications demanding stability and low power consumption in a compact SOIC-8 package. Complements other low-power components like the OPA349 operational amplifier.

Replacement Considerations

LT1004IPWR-2-5: Verify pinout and package compatibility before substitution. REF1112: Offers lower power but different package; check thermal and electrical specifications.