SNAS781E October   2020  – July 2022 REF70

PRODMIX  

  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  REF7012 Electrical Characteristics
    6. 7.6  REF7025 Electrical Characteristics
    7. 7.7  REF7030 Electrical Characteristics
    8. 7.8  REF7033 Electrical Characteristics
    9. 7.9  REF7040 Electrical Characteristics
    10. 7.10 REF7050 Electrical Characteristics
    11. 7.11 Typical Characteristics
  8. Parameter Measurement Information
    1. 8.1 Solder Heat Shift
    2. 8.2 Long-Term Stability
    3. 8.3 Thermal Hysteresis
    4. 8.4 Noise Performance
      1. 8.4.1 1/f Noise
      2. 8.4.2 Broadband Noise
    5. 8.5 Temperature Drift
    6. 8.6 Power Dissipation
  9. Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 EN Pin
    4. 9.4 Device Functional Modes
      1. 9.4.1 Basic Connections
      2. 9.4.2 Negative Reference Voltage
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 Typical Application: Basic Voltage Reference Connection
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
          1. 10.2.1.2.1 Input and Output Capacitors
            1. 10.2.1.2.1.1 Application Curve
          2. 10.2.1.2.2 Force and Sense Connection
      2. 10.2.2 Typical Application: DAC Force and Sense Reference Drive Circuit
        1. 10.2.2.1 Design Requirements
  11. 11Power Supply Recommendation
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 Receiving Notification of Documentation Updates
    3. 13.3 Support 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

Typical Characteristics

at TA = 25°C, VIN = VEN = VREF + 0.5 V, IL = 0 mA, CL = 10 μF, CIN = 0.1 μF, VREF = 2.5 V (unless otherwise noted)

GUID-20201214-CA0I-QQPP-WVCP-KGCVDN7P3JXM-low.gifFigure 7-1 Output Voltage Vs Free-Air Temperature
GUID-20201223-CA0I-V7GV-NJMH-WNXNKCLKDNNV-low.gifFigure 7-3 Accuracy Distribution
GUID-20201214-CA0I-CWLM-RCML-9CZNMGHLBCSN-low.gifFigure 7-5 Load Regulation (Sourcing) vs Temperature
GUID-20200823-CA0I-VW3Q-LT97-DMXBPQM3Q3VL-low.gifFigure 7-7 Line Regulation Response
GUID-20201214-CA0I-2P10-5ZBZ-NCQ78SC220R8-low.gifFigure 7-9 Load Transient Response (CL = 10 μF)
GUID-20200823-CA0I-X2S0-4JKD-3C8TTXZR2KRH-low.gifFigure 7-11 Quiescent Current vs Temperature
GUID-20200823-CA0I-FZB4-HMHT-WPDKJZWQ7FZN-low.gifFigure 7-13 Enable Threshold vs VIN
GUID-20201214-CA0I-CHL0-FDJL-0M9VRPRFXH0J-low.gifFigure 7-15 0.1-Hz to 10-Hz Voltage Noise Distribution (300 units)
Figure 7-17 Power-Supply Rejection Ratio vs Frequency
Figure 7-19 REF7012 FKH Thermal Hysteresis Distribution (0°C to 70°C)
Figure 7-2 Temperature Drift Distribution
GUID-20201214-CA0I-GV5F-GKJ6-RZLM1VG530ZT-low.gifFigure 7-4 Line Regulation vs Temperature
GUID-20201214-CA0I-KK93-H81P-HVXNKMGTSJN0-low.gifFigure 7-6 Load Regulation (Sinking) vs Temperature
GUID-20201214-CA0I-MPVC-DNVJ-1GPJ9DKZFV5F-low.gifFigure 7-8 Load Transient Response (CL = 1 μF)
GUID-20201213-CA0I-PQS2-FF2F-B4GD15XQPNFM-low.gifFigure 7-10 Output Impedance
GUID-20200823-CA0I-G76R-WVZ1-5CWVL7KQM2XC-low.gifFigure 7-12 Shutdown Current vs Temperature
GUID-20201213-CA0I-CMP4-WPVC-CSFWNRMR0KMQ-low.gifFigure 7-14 Dropout Voltage vs Temperature
GUID-20200823-CA0I-KR9W-7KTL-SZD5SSR3WNBP-low.gifFigure 7-16 Noise Performance 10 Hz to 100 kHz
Figure 7-18 REF7025 FKH Thermal Hysteresis Distribution (0°C to 70°C)
Figure 7-20 Long-Term Stability (First 4000 Hours)