SBOS410H June   2007  – June 2016 REF5010 , REF5020 , REF5025 , REF5030 , REF5040 , REF5045 , REF5050

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Device Comparison Table
  6. Pin Configuration and Functions
  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
    6. 7.6 Typical Characteristics
  8. Parameter Measurement Information
    1. 8.1 Solder Heat Shift
  9. Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Temperature Monitoring
      2. 9.3.2 Temperature Drift
      3. 9.3.3 Thermal Hysteresis
      4. 9.3.4 Noise Performance
      5. 9.3.5 Output Adjustment Using the TRIM/NR Pin
    4. 9.4 Device Functional Modes
      1. 9.4.1 Basic Connections
      2. 9.4.2 Supply Voltage
      3. 9.4.3 Negative Reference Voltage
  10. 10Applications and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 16-bit, 250-KSPS Data Acquisition System
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
        3. 10.2.1.3 Application Curve
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
    3. 12.3 Power Dissipation
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 Related Links
    3. 13.3 Community Resources
    4. 13.4 Trademarks
    5. 13.5 Electrostatic Discharge Caution
    6. 13.6 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Low Temperature Drift:
    • High-Grade: 3 ppm/°C (Max)
    • Standard-Grade: 8 ppm/°C (Max)
  • High Accuracy:
    • High-Grade: 0.05% (Max)
    • Standard-Grade: 0.1% (Max)
  • Low Noise: 3 μVPP/V
  • Excellent Long-Term Stability:
    • 45 ppm/1000 hr (Typ) after 1000 Hours
  • High-Output Current: ±10 mA
  • Temperature Range: –40°C to 125°C

2 Applications

  • Precision Data Acquisition Systems
  • ATE Equipment
  • Industrial Process Controls
  • Medical Instrumentation
  • Pressure and Temperature Transmitters
  • Seismic monitoring systems

3 Description

The REF50xx is a family of low-noise, low-drift, very high precision voltage references. These references are capable of both sinking and sourcing current, and have excellent line and load regulation.

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 REF50xx family ideal for use in high-precision data acquisition systems.

Each reference voltage is available in both high grade (REF50xxIDGK and REF50xxID) and standard grade (REF50xxAIDGK and REF50xxAID). The reference voltages are offered in 8-pin VSSOP and SOIC packages, and are specified from –40°C to 125°C.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
REF50xx SOIC (8) 4.90 mm × 3.91 mm
VSSOP (8) 3.00 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

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Simplified Schematic

REF5010 REF5020 REF5025 REF5030 REF5040 REF5045 REF5050 fig_typcl_applctn.gif