SBOS697B September   2014  – July 2026 REF19

PRODUCTION DATA  

  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
    6. 6.6 Typical Characteristics
  8. 7 Parameter Measurement Information
    1. 7.1 Solder Heat Shift
    2. 7.2 Thermal Hysteresis
    3. 7.3 Noise Performance
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 VREF and VBIAS Tracking
      2. 8.3.2 Low Temperature Drift
      3. 8.3.3 Load Current
    4. 8.4 Device Functional Modes
  10. 9 Applications and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Shunt Resistor
        2. 9.2.2.2 Differential Amplifier
        3. 9.2.2.3 Voltage Reference
        4. 9.2.2.4 Results
      3. 9.2.3 Application Curves
    3. 9.3 Power-Supply Recommendations
    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)
Orderable Information

6.6 Typical Characteristics

At TA = 25°C, IL = 0mA, VIN = 5V power supply, CL = 0 µF, and 2.5V output, unless otherwise noted.

REF19 VREF – 2 × VBIAS Distribution
Figure 6-1 VREF – 2 × VBIAS Distribution
REF19 Distribution of VREF – 2 × VBIAS Drift Tracking Over Temperature
–40°C ≤ TA ≤ 125°C
Figure 6-3 Distribution of VREF – 2 × VBIAS Drift Tracking Over Temperature
REF19 Solder Heat Shift Distribution (VBIAS)
Refer to the Section 7.1 section for more information.
Figure 6-5 Solder Heat Shift Distribution (VBIAS)
REF19 VREF – 2 × VBIAS Tracking vs Temperature
Figure 6-7 VREF – 2 × VBIAS Tracking vs Temperature
REF19 Output Voltage Change vs Load Current (VBIAS)
VBIAS output
Figure 6-9 Output Voltage Change vs Load Current (VBIAS)
REF19 Load Regulation Sourcing vs Temperature (VBIAS)
VBIAS outputIL = 20mA
Figure 6-11 Load Regulation Sourcing vs Temperature (VBIAS)
REF19 Load Regulation Sinking vs Temperature (VBIAS)
VBIAS outputIL = –20mA
Figure 6-13 Load Regulation Sinking vs Temperature (VBIAS)
REF19 Line Regulation vs Temperature (VBIAS)
VBIAS output
Figure 6-15 Line Regulation vs Temperature (VBIAS)
REF19 Power-Supply Rejection Ratio vs Frequency
CL = 10 µF
Figure 6-17 Power-Supply Rejection Ratio vs Frequency
REF19 Line Transient Response
CL = 10 µF
Figure 6-19 Line Transient Response
REF19 Load Transient Response
CL = 10 µFIL = ±1mA step
Figure 6-21 Load Transient Response
REF19 Load Transient Response
CL = 10 µFIL = ±20mA step
Figure 6-23 Load Transient Response
REF19 Turn-On Settling Time
CL = 1 µF
Figure 6-25 Turn-On Settling Time
REF19 Quiescent Current vs Temperature
Figure 6-27 Quiescent Current vs Temperature
REF19 0.1Hz to 10Hz Noise (VREF)
VREF output
Figure 6-29 0.1Hz to 10Hz Noise (VREF)
REF19 Output Voltage Noise Spectrum
Figure 6-31 Output Voltage Noise Spectrum
REF19 Output Impedance vs Frequency (VBIAS)
VBIAS output
Figure 6-33 Output Impedance vs Frequency (VBIAS)
REF19 Thermal Hysteresis Distribution (VBIAS)
Figure 6-35 Thermal Hysteresis Distribution (VBIAS)
REF19 Distribution of VREF – 2 × VBIAS Drift Tracking Over Temperature
–40°C ≤ TA ≤ 85°C
Figure 6-2 Distribution of VREF – 2 × VBIAS Drift Tracking Over Temperature
REF19 Solder Heat Shift Distribution (VREF)
Refer to the Section 7.1 section for more information.
Figure 6-4 Solder Heat Shift Distribution (VREF)
REF19 Output Voltage Accuracy (VREF) vs Temperature
Figure 6-6 Output Voltage Accuracy (VREF) vs Temperature
REF19 Output Voltage Change vs Load Current (VREF)
VREF output
Figure 6-8 Output Voltage Change vs Load Current (VREF)
REF19 Load Regulation Sourcing vs Temperature (VREF)
VREF outputIL = 20mA
Figure 6-10 Load Regulation Sourcing vs Temperature (VREF)
REF19 Load Regulation Sinking vs Temperature (VREF)
VREF outputIL = –20mA
Figure 6-12 Load Regulation Sinking vs Temperature (VREF)
REF19 Line Regulation vs Temperature (VREF)
VREF output
Figure 6-14 Line Regulation vs Temperature (VREF)
REF19 Power-Supply Rejection Ratio vs Frequency
CL = 0 µF
Figure 6-16 Power-Supply Rejection Ratio vs Frequency
REF19 Line Transient Response
CL = 1 µF
Figure 6-18 Line Transient Response
REF19 Load Transient Response
CL = 1 µFIL = ±1mA step
Figure 6-20 Load Transient Response
REF19 Load Transient Response
CL = 1 µFIL = ±20mA step
Figure 6-22 Load Transient Response
REF19 Minimum Dropout Voltage vs Load Current
Figure 6-24 Minimum Dropout Voltage vs Load Current
REF19 Turn-On Settling Time
CL = 10 µF
Figure 6-26 Turn-On Settling Time
REF19 Quiescent Current vs Input Voltage
Figure 6-28 Quiescent Current vs Input Voltage
REF19 0.1Hz to 10Hz Noise (VBIAS)
VBIAS output
Figure 6-30 0.1Hz to 10Hz Noise (VBIAS)
REF19 Output Impedance vs Frequency (VREF)
VREF output
Figure 6-32 Output Impedance vs Frequency (VREF)
REF19 Thermal Hysteresis Distribution (VREF)
Figure 6-34 Thermal Hysteresis Distribution (VREF)