SNVSCN7D November   2023  – June 2026 REF54

PRODMIX  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics REF54250
    6. 6.6  Electrical Characteristics REF54300
    7. 6.7  Electrical Characteristics REF54410
    8. 6.8  Electrical Characteristics REF54450
    9. 6.9  Electrical Characteristics REF54500
    10. 6.10 Typical Characteristics
  8. 7 Parameter Measurement Information
    1. 7.1 Temperature Drift
    2. 7.2 Long-Term Stability
    3. 7.3 Noise Performance
      1. 7.3.1 1/f Noise
      2. 7.3.2 Broadband Noise
    4. 7.4 Thermal Hysteresis
    5. 7.5 Solder Heat Shift
    6. 7.6 Power Dissipation
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 EN Pin
      2. 8.3.2 NR Pin
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Basic Voltage Reference Connection
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Reference Attach With High Precision ADC
    3. 9.3 Power Supply Recommendation
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)

11 Revision History

Changes from Revision C (May 2025) to Revision D (June 2026)

  • Removed product preview from Package Information table for the LCCC packageGo
  • Changed the document status from Production Data to Production Mix Go
  • Changed REF54500CFKHT, REF54410CFKHT, REF54250CFKHT, and REF54300CDR devices variant status from preview to production dataGo
  • Updated to clarify operating temperature range vs specified temperature rangeGo
  • Added REF54250IDR and REF54410IDR as product preview devicesGo
  • Added I grade device temperature drift preview specificationGo
  • Updated 3V variant noise reduction capacitor = 100µF noise specification from 0.1 ppm p-p to 0.11 ppm p-p.Go
  • Updated 4.096V variant noise reduction capacitor = 10µF noise specification from 0.2 ppm p-p to 0.24 ppm p-p.Go
  • Updated 4.096V variant noise reduction capacitor = 100µF noise specification from 0.09 ppm p-p to 0.11 ppm p-p.Go
  • Updated thermal hysteresis numbers for 4.096V variant to match 2.5V variants.Go
  • Added 3V, 4.5V, and 5V variants noise reduction capacitor = 10µF specificationGo
  • Updated 4.5V variant noise reduction capacitor = 100µF value from 0.08ppm p-p to 0.11ppm p-pGo
  • Updated preview temperature drift from 0.5 ppm/°C to 0.8 ppm/°C for the ceramic package for the 2.5V, 4.096V, and 5V variants. Go
  • Updated 5V variant noise reduction capacitor = 100µF value from 0.08 ppm p-p to 0.11 ppm p-pGo
  • Added wideband noise specification with NR cap 1uF for 3V, 4.5V and 5V variantsGo
  • Added 9000 hours data to the long-term stability graph for FKH package and added temperature drift distribution for REF54xxxFKHT. Renamed plots to distinguish between REF54xxxFKHT and REF54xxxCDR. Figure 6-18 and Figure 6-20 Go
  • Added the 9000 hours long term stability data for FKH package to Figure 7-4 Go
  • Added layout example for FKH package.Go

Changes from Revision B (June 2024) to Revision C (May 2025)

  • Added REF54xxxCFKH information throuout the data sheetGo
  • Changed REF54500CDR device variant status from preview to production data. Added LCCC package variants in preview state.Go
  • Move REF54500CDR specifications from preview to released.Go
  • Added the 7500 hours long term stability data for SOIC package to Figure 7-3 Go
  • Added the 2000 hours long term stability data for FKH package to Figure 7-4 Go