SNAS809 December   2021 REF35

ADVANCE INFORMATION  

  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
    2. 8.2 Temperature Coefficient
    3. 8.3 Long-Term Stability
    4. 8.4 Thermal Hysteresis
    5. 8.5 Noise Performance
      1. 8.5.1 Low Frequency (1/f) Noise
      2. 8.5.2 Broadband Noise
    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 Supply Voltage
      2. 9.3.2 EN Pin
      3. 9.3.3 NR Pin
    4. 9.4 Device Functional Modes
      1. 9.4.1 Basic Connections
      2. 9.4.2 Start-Up
      3. 9.4.3 Output Transient Behavior
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application: Negative Reference Voltage
    3. 10.3 Typical Application: Precision Power Supply and Reference
      1. 10.3.1 Design Requirements
      2. 10.3.2 Detailed Design Procedure
        1. 10.3.2.1 Selection of Reference
        2. 10.3.2.2 Input and Output Capacitors
        3. 10.3.2.3 Selection of ADC
      3. 10.3.3 Application Curves
  11. 11Power Supply Recommendations
  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

Features

  • Ultra-low quiescent current:
    • 680 nA (typical)
  • Initial accuracy: ±0.05% (maximum)
  • Temperature coefficient:
    • 10 ppm/°C (maximum for −40°C to 125°C)
  • Output 1/f noise (0.1 Hz to 10 Hz): 8.5 ppmP-P
  • NR pin to reduce noise
  • EN pin to reduce shutdown current consumption
  • Excellent long-term stability: 20 ppm @ 1k hr
  • Excellent thermal hysteresis: 20 ppm
  • Specified temperature range: −40°C to +125°C
  • Operating temperature range: −55°C to +125°C
  • Output current: +10 mA, −5 mA
  • Input voltage: VREF + VDO to 6 V
  • Output voltage options:
    • 1.024 V, 1.2 V, 1.25 V, 1.6 V, 1.8 V, 2.048 V,
      2.5 V, 3.0 V, 3.3 V, 4.096 V, 5.0 V
  • Small footprint 6-pin SOT−23 package