REF6225IDGKT

Overview

The REF6225IDGKT is a high-precision series voltage reference from Texas Instruments, providing a fixed 2.5 V output. It features an initial accuracy of ±0.05% and a temperature coefficient of 3 ppm/°C. The device operates within an input voltage range of 4.75 V to 5.5 V and draws a supply current of 1.15 mA. It supports a maximum load current of 3.5 mA and includes an integrated shutdown function. The component is housed in an 8-pin VSSOP package and functions reliably across an extended industrial temperature range of -40°C to +125°C.

Feature Summary

• Integrated ADC drive buffer for direct analog-to-digital converter interfacing
• Low noise performance with 3 µVp-p specification in the 0.1 Hz to 10 Hz frequency band
• Compact surface-mount packaging suitable for space-constrained designs

Applications

• High-resolution data acquisition systems
• Precision instrumentation front-ends
• Medical equipment requiring stable reference voltages

Procurement Notes

Verify the specific suffix 'DGKT' to confirm the VSSOP-8 package and tape-and-reel shipping configuration. Ensure compatibility with moisture sensitivity level requirements during assembly. Confirm that the 2.5 V output aligns with system design specifications before procurement.

Selection Notes

Select this component when a buffered 2.5 V reference with low drift and low noise is required. It is suitable for applications demanding high accuracy without external buffering components. Consider the 1.15 mA quiescent current for power budget calculations.

Part Context

This part belongs to the REF62xx family of high-precision voltage references from Texas Instruments. These devices are designed to offer superior stability and low noise compared to standard references, making them ideal for precision measurement applications where long-term stability is critical.

Replacement Considerations

Check the REF6225IDGKR for reel-only packaging alternatives. Verify REF6225IDR for SOIC package variations if pinout compatibility allows.