SBOS392I August   2007  – April 2026

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  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 Thermal Hysteresis
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Start-Up Time
      2. 8.3.2 Low Temperature Drift
      3. 8.3.3 Power Dissipation
      4. 8.3.4 Noise Performance
    4. 8.4 Device Functional Modes
  10. 9 Applications and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 REF3312 in a Bipolar Signal-Chain Configuration
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Op Amp Level-Shift Design
          2. 9.2.1.2.2 Differential Input Attenuator Design
          3. 9.2.1.2.3 Input Filtering
          4. 9.2.1.2.4 Component Selection
            1. 9.2.1.2.4.1 Voltage References
            2. 9.2.1.2.4.2 Op Amp
          5. 9.2.1.2.5 Input Attenuation and Level Shifting
          6. 9.2.1.2.6 Input Filtering
          7. 9.2.1.2.7 Passive Component Tolerances and Materials
        3. 9.2.1.3 Application Curves
          1. 9.2.1.3.1 DC Performance
          2. 9.2.1.3.2 AC Performance
    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

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订购信息

6.5 Electrical Characteristics

At TA = 25°C, VIN = 5V, and ILOAD = 0mA (unless otherwise noted).
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
REF3312 (1.25V)
VOUT Output voltage 1.25 V
Initial accuracy –0.15% 0.15%
Output voltage noise f = 0.1Hz to 10Hz 35 μVPP
REF3318 (1.8V)
VOUT Output voltage 1.8 V
Initial accuracy –0.15% 0.15%
Output voltage noise f = 0.1Hz to 10Hz 50 μVPP
REF3320 (2.048V)
VOUT Output voltage 2.048 V
Initial accuracy –0.15% 0.15%
Output voltage noise f = 0.1Hz to 10Hz 55 μVPP
REF3325 (2.5V)
VOUT Output voltage 2.5 V
Initial accuracy –0.15% 0.15%
Output voltage noise f = 0.1Hz to 10Hz 70 μVPP
REF3330 (3.0V)
VOUT Output voltage 3.0 V
Initial accuracy –0.15% 0.15%
Output voltage noise f = 0.1Hz to 10Hz 84 μVPP
REF3333 (3.3V)
VOUT Output voltage 3.3 V
Initial accuracy –0.15% 0.15%
Output voltage noise f = 0.1Hz to 10Hz 92 μVPP
REF33xx (REF3312, REF3320, REF3325, REF3330, REF3333, REF3340)
dVOUT/dT Output voltage temperature drift –40°C to 85°C 9 30 ppm/°C
–40°C to 125°C 8 30
ΔVO(ΔVI) Line regulation VIN = VOUT + 200mV to 5.5V(1) –50 6 50 ppm/V
0°C to +70°C 6
–40°C to 85°C 8
–40°C to 125°C 30
ΔVO(ΔIL) Load regulation VIN = VOUT + 200mV(1) –50 6 50 ppm/mA
ILOAD = ±5mA, 0°C to 70°C 10
–40°C to 85°C 20
–40°C to 125°C 20
Long-term stability(3) 0h to 1000h at 25°C 55 ppm
dT Thermal hysteresis(2) 90 ppm
VIN – VOUT Minimum dropout voltage(1) ILOAD = ±5mA 110 160 mV
0°C to 70°C 120
–40°C to 85°C 135
–40°C to 125°C 180
ILOAD = ±2mA, –40°C to 85°C 70
ISC Short-circuit current Sourcing and sinking 35 mA
Capacitive load 0.1 10 μF
Turn-on settling time To 0.1% with CL = 1μF 2 ms
POWER SUPPLY
VS Specified voltage range VOUT + 0.2(1) 5.5 V
Operating voltage range ILOAD = 0mA VOUT + 0.005 5.5 V
IQ Current 3.9 5 µA
–40°C to 85°C 4.4 6.5
–40°C to 125°C 4.8 8.5
TEMPERATURE
TA Specified range –40 125 °C
Operating range –50 150
(1) The minimum supply voltage for the REF3312 is 1.7V.
(2) The thermal hysteresis procedure is explained in more detail in the Thermal Hysteresis section.
(3) The long-term stability number reduces as the time increases.