SBOS456H September   2008  – February 2015 REF5020A-Q1 , REF5025A-Q1 , REF5030A-Q1 , REF5040A-Q1 , REF5045A-Q1 , REF5050A-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Simplified Schematic
  5. 5 Revision History
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics: Per Device
    6. 7.6 Electrical Characteristics: All Devices
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Supply Voltage
      2. 8.3.2 Using the TRIM/NR Pin
      3. 8.3.3 Temperature Drift
      4. 8.3.4 Temperature Monitoring
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Thermal Hysteresis
    2. 9.2 Typical Applications
      1. 9.2.1 Standalone Applications
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Power Dissipation
          2. 9.2.1.2.2 Noise Performance
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Negative-Reference Voltage Applications
      3. 9.2.3 Data-Acquisition Applications
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Related Links
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Qualified for Automotive Applications
  • Low Temperature Drift
    • Standard Grade: 8 ppm/°C (max)
  • High Accuracy
    • Standard Grade: 0.1% (max)
  • Low Noise: 3 μVPP/V
  • Excellent Long-Term Stability:
    • 5 ppm/1000 hr (typ) after 1000 hours
  • High Output Current: ±10 mA
  • Temperature Range: –40°C to 125°C

2 Applications

  • 16-Bit Data Acquisition Systems
  • ATE Equipment
  • Industrial Process Control
  • Medical Instrumentation
  • Optical Control Systems
  • Precision Instrumentation

3 Description

The REF50xxA-Q1 family of devices is low-noise, low-drift, very-high precision-voltage reference. These reference devices are capable of both sinking and sourcing, and are very robust with regard to line and load changes.

Excellent temperature drift (3 ppm/°C) and high accuracy (0.05%) are achieved using proprietary design techniques. These features combined with very low noise make the REF50xxA-Q1 family of devices ideal for use in high-precision data acquisition systems.

Each reference voltage is available in a standard-grade versions. The devices are offered in SO-8 packages and are specified from –40°C to 125°C.

Device Information(1)

PART NUMBER PACKAGE OUTPUT VOLTAGE
REF5020A-Q1 SOIC (8) 2.048 V
REF5025A-Q1 2.5 V
REF5030A-Q1 3 V
REF5040A-Q1 4.096 V
REF5045A-Q1 4.5 V
REF5050A-Q1 5 V
  1. For all available packages, see the orderable addendum at the end of the data sheet.

4 Simplified Schematic

REF5020A-Q1 REF5025A-Q1 REF5030A-Q1 REF5040A-Q1 REF5045A-Q1 REF5050A-Q1 fbd_bos456.gif