REF1941AIDDCT

Overview

The REF1941AIDDCT is a dual-output series voltage reference from Texas Instruments, housed in a SOT-23-5 Thin package. It provides fixed outputs of 4.096V and half-reference (2.048V). Key electrical parameters include an initial accuracy of ±0.1%, a temperature coefficient of 25 ppm/°C, and a maximum input voltage of 5.5V. The device operates with a supply current of 460µA and supports a maximum output current of 20mA. It functions within a temperature range of -40°C to +125°C.

Feature Summary

• Dual-output architecture providing both full reference and half-reference voltages simultaneously.
• High precision performance with ±0.1% initial accuracy and low temperature drift.
• Low power consumption suitable for battery-operated and space-constrained designs.

Applications

• Data acquisition systems requiring stable reference sources
• Industrial process control instrumentation
• Portable measurement devices

Procurement Notes

Verify the specific suffix 'AIDDCT' matches the required tolerance grade, package type, and tape-and-reel quantity. Confirm that the manufacturer's datasheet specifications align with system requirements for accuracy and thermal stability before finalizing procurement orders.

Selection Notes

Select this component when dual independent voltage rails are needed from a single IC to save board space. Ensure the input voltage remains within the 5.5V maximum limit and that the load current does not exceed the 20mA specification while maintaining the required accuracy over the operating temperature range.

Part Context

This part belongs to the REF19xx family of low-drift, low-power voltage references. It complements other variants like the REF1925 and REF1930 by offering a 4.096V output option, which is commonly used in high-resolution analog-to-digital converter applications.

Replacement Considerations

Compatible substitutes include REF1941AIDDCR and REF1941AIDDT, which share identical electrical characteristics but differ in packaging format or reel configuration.