SNVSCN7C November   2023  – May 2025 REF54

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 REF54250
    6. 6.6  Electrical Characteristics REF54300
    7. 6.7  Electrical Characteristics REF54410
    8. 6.8  Electrical Characteristics REF54450
    9. 6.9  Electrical Characteristics REF54500
    10. 6.10 Typical Characteristics
  8. 7 Parameter Measurement Information
    1. 7.1 Temperature Drift
    2. 7.2 Long-Term Stability
    3. 7.3 Noise Performance
      1. 7.3.1 1/f Noise
      2. 7.3.2 Broadband Noise
    4. 7.4 Thermal Hysteresis
    5. 7.5 Solder Heat Shift
    6. 7.6 Power Dissipation
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 EN Pin
      2. 8.3.2 NR Pin
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Basic Voltage Reference Connection
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Reference Attach With High Precision ADC
    3. 9.3 Power Supply Recommendation
    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

6.5 Electrical Characteristics REF54250

Typical specifications at TA = 25°C, min-max specifications verified across temperature range, IL = 0mA, CIN = 0.1µF, CREF = 10µF, CNR = Open, VIN = VREF + VDO, unless otherwise noted
PARAMETER TEST CONDITION MIN TYP MAX UNIT
ACCURACY AND DRIFT
Output voltage accuracy TA = 25°C –0.02 0.02 %
Output voltage temperature coefficient Q grade; –40°C ≤ TA ≤ 125°C (1) 1.5 ppm/℃
Ceramic (FKH) package; 0°C ≤ TA ≤ 70°C  (1) 0.5
C grade; 0°C ≤ TA ≤ 70°C 0.8
LINE AND LOAD REGULATION
ΔVR / ΔVIN Line regulation VREF + VDO ≤ VIN ≤ 18V, 0°C ≤ TA ≤ 70°C 1 3 ppm/V
VREF + VDO ≤ VIN ≤ 18V, –40°C ≤ TA ≤ 125°C (1) 1 3
ΔVR / ΔIL Load regulation IL = 0mA to 10mA, VIN = VREF + VDO, 0°C ≤ TA ≤ 70°C 5 20 ppm/mA
IL = 0mA to 10mA, VIN = VREF + VDO, –40°C ≤ TA ≤ 125°C (1) 5 30
IL = 0mA to –10mA, VIN = VREF + VDO, 0°C ≤ TA ≤ 70°C 5 15
IL = 0mA to –10mA, VIN = VREF + VDO, –40°C ≤ TA ≤ 125°C (1) 5 25
NOISE
enp-p Low frequency noise ƒ = 0.1Hz to 10Hz 0.45 ppmp-p
ƒ = 0.1Hz to 10Hz, CNR = 10µF 0.24
ƒ = 0.1Hz to 10Hz, CNR = 100µF 0.11
en Output voltage noise ƒ = 10Hz to 1kHz  0.7 ppmrms
en Output voltage noise ƒ = 10Hz to 1kHz , CNR = 1µF 0.16 ppmrms
RNR NR pin internal resistance  14 kΩ
HYSTERESIS AND LONG-TERM STABILITY
ΔVREF_LTD  Long-term stability - SOIC (D) package 250h TA = 35°C 14 ppm
1000h TA = 35°C 25
2000h TA = 35°C 32
4500h TA = 35°C 46
ΔVREF_LTD Long-term stability - Ceramic (FKH) package (1) 250h TA = 35°C 2 ppm
1000h TA = 35°C 3
2000h TA = 35°C 4
4500h TA = 35°C 4
ΔVREF_HYS Output voltage hysteresis - SOIC (D) package 25°C, 0°C, 70°C, 25°C (cycle 1) 15 ppm
25°C, 0°C, 70°C, 25°C (cycle 2) 0.8
ΔVREF_HYS Output voltage hysteresis - Ceramic (FKH) package (1) 25°C, 0°C, 70°C, 25°C (cycle 1) 5 ppm
25°C, 0°C, 70°C, 25°C (cycle 2) 0.5
TURN ON TIME
tON Turn-on time 0.1% settling, CREF = 1µF 0.4 ms
CAPACITIVE LOAD
CIN Stable input capacitor range –40℃ ≤ TA ≤ 125℃ 0.1 µF
CREF Stable output capacitor range (2)  –40℃ ≤ TA ≤ 125℃ 1 100 µF
POWER SUPPLY
VIN Input voltage VREF + VDO 18 V
IQ Quiescent current TA = 25°C Active mode 260 µA
–40°C ≤ TA ≤ 125°C 380 µA
TA = 25°C Shutdown mode 0.5 1 uA
–40°C ≤ TA ≤ 125°C 2 uA
VEN Enable pin voltage Active mode (EN=1) 1.6 V
Shutdown mode (EN=0) 0.5 V
IEN Enable pin current VIN = VEN = 18V 0.5 uA
VIN = VEN = 18V, –40°C ≤ TA ≤ 125°C 1.5 uA
VDO Dropout voltage IL = 5mA, –40°C ≤ TA ≤ 125°C 250 mV
IL = 10mA, –40°C ≤ TA ≤ 125°C 400 mV
ISC Short circuit current VREF = 0V 21 mA
(1) Preview specification. Subject to change at production release.
(2) ESR for the capacitor can range from 10mΩ to 1Ω.