REF1004I-2.5/2K5

Overview

The REF1004I-2.5/2K5 is a micropower voltage reference featuring a fixed output of 2.5V with an initial accuracy of ±20mV and a temperature coefficient of 20 ppm/°C. It operates within a –40°C to +85°C range, drawing a minimum current of 20µA and supporting up to 20mA load current. The device utilizes an 8-lead SOIC package and is supplied in tape and reel format.

Feature Summary

• Two-terminal bandgap reference diode designed for high accuracy at low operating currents
• Excellent long-term temperature stability and very low dynamic impedance
• Drop-in replacement for LT1004 and upgraded replacement for LM185/385 series

Applications

• Battery powered test equipment
• Portable medical instrumentation
• Portable communications devices
• A/D and D/A converters
• Notebook and palmtop computers

Procurement Notes

Verify the specific suffix /2K5 indicates tape and reel packaging rather than tube. Confirm RoHS compliance status and lead finish details via the latest TI Package Option Addendum. Ensure moisture sensitivity level ratings align with assembly requirements.

Selection Notes

Select this component when precise voltage referencing is required under battery-powered conditions. The wide operating current range from 20µA to 20mA allows flexibility in circuit design while maintaining stability across industrial temperature extremes.

Part Context

Part of the REF1004 family offering 1.2V and 2.5V options. The 'I' suffix denotes industrial temperature range characterization. Manufactured by Texas Instruments, it serves as a cost-effective solution for applications demanding superior temperature characteristics compared to standard references.

Replacement Considerations

LT1004

FAQ

What is the minimum operating current for the REF1004I-2.5?

The minimum operating current is 20µA.

Does the REF1004I-2.5 replace older reference types?

Yes, it is an upgraded replacement for the LM185/385 series references.