SBOS748 September   2016 REF6225 , REF6230 , REF6233 , REF6241 , REF6245 , REF6250

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application
      2.      Reference Droop comparison (1 LSB = 19.07 µV, With ADS8881 at 1 MSPS)
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 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. 8 Parameter Measurement Information
    1. 8.1 Solder Heat Shift
    2. 8.2 Thermal Hysteresis
    3. 8.3 Reference Droop Measurements
    4. 8.4 1/f Noise Performance
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Integrated ADC Drive Buffer
      2. 9.3.2 Temperature Drift
      3. 9.3.3 Load Current
      4. 9.3.4 Stability
    4. 9.4 Device Functional Modes
  10. 10Applications and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Results
      3. 10.2.3 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 Related Links
    3. 13.3 Receiving Notification of Documentation Updates
    4. 13.4 Community Resources
    5. 13.5 Trademarks
    6. 13.6 Electrostatic Discharge Caution
    7. 13.7 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.6 Typical Characteristics

at TA = 25°C, IL = 0 mA, and VIN = 5 V, using REF6225 (unless otherwise noted)
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C002_SBOS748.png
TA = 0°C to +70°C
Figure 1. Drift Distribution
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C004_SBOS708.png
Figure 3. Solder-Heat Shift Distribution
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C017_SBOS708.png
Figure 5. Dropout Voltage vs Load Current
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C007_SBOS748.png
VIN = VOUT + 600 mV,
IL = 0 mA to 4 mA
Figure 7. Load Regulation Sinking vs Temperature
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C019_SBOS748.png
Figure 9. Supply Current vs Temperature
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C018_SBOS708.png
Figure 11. Turn-On Settling Time
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C022_SBOS708.png
Figure 13. Output-Voltage Noise Spectrum
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C025_SBOS708.png
Graph obtained by design simulation
Figure 15. Output Impedance vs Frequency
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C015_SBOS708.png
Load current = ±3 mA
Figure 17. Load Transient Response
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C028_SBOS748.png
Figure 19. Thermal Hysteresis Distribution (Cycle 1)
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C063_SBOS748.png
Figure 21. Output Impedance Comparison
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C037_SBOS708.png
REF6250 driving REF pin of ADS8881,
fIN = 2 kHz, SNR = 100.4 dB, THD = –123.9 dB
Figure 23. Typical FFT Plot
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C030_SBOS708.png
REF6241 driving REF pin of ADS8881,
fIN = 1 kHz, SNR = 99 dB, THD = –124.4 dB
Figure 25. Typical FFT Plot
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C032_SBOS708.png
REF6241 driving REF pin of ADS8881,
fIN = 10 kHz, SNR = 97.2 dB, THD = –119.7 dB
Figure 27. Typical FFT Plot
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C034_SBOS708.png
REF6225 driving REF pin of ADS8881,
fIN = 2 kHz, SNR = 95.4 dB, THD = –123.5 dB
Figure 29. Typical FFT Plot
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C047_SBOS708.png
REF6250 driving REF pin of ADS8881 operating at 1 MSPS,
positive full-scale input to ADS8881
Figure 31. Reference Droop
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C049_SBOS708.png
REF6250 driving REF pin of ADS8881 operating at 1 MSPS,
AINP = AINN = VREF / 2 for ADS8881
Figure 33. Reference Droop
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C051_SBOS708.png
AINP = AINN = VREF / 2 for ADS8881,
sampling rate = 500 kSPS
Figure 35. DC Input Histogram
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C053_SBOS708.png
AINP = AINN = VREF / 2 for ADS8881,
sampling rate = 20 kSPS
Figure 37. DC Input Histogram
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C005_SBOS708.png
Figure 2. Initial Accuracy Distribution
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C001_SBOS748.png
Figure 4. Output Voltage Accuracy vs Temperature
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C006_SBOS748.png
VIN = VOUT + 600 mV,
IL = 0 mA to 4 mA
Figure 6. Load Regulation Sourcing vs Temperature
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C010_SBOS708.png
VOUT + 0.25 V ≤ VIN ≤ 5.5 V
Figure 8. Line Regulation vs Temperature
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C020_SBOS708.png
Figure 10. Supply Current vs Input Voltage
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C021_SBOS708.png
Figure 12. 0.1-Hz to 10-Hz Noise
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C011_SBOS708.png
Figure 14. PSRR vs Frequency
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C014_SBOS708.png
Load current = ±1 mA
Figure 16. Load Transient Response
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C013_SBOS708.png
Figure 18. Line Transient Response
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C027_SBOS748.png
Figure 20. Thermal Hysteresis Distribution (Cycle 2)
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C024_SBOS708.png
REF6250 driving REF pin of ADS8881,
fIN = 1 kHz, SNR = 100.5 dB, THD = –125.9 dB
Figure 22. Typical FFT Plot
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C038_SBOS708.png
REF6250 driving REF pin of ADS8881,
fIN = 10 kHz, SNR = 99.2 dB, THD = –119.4 dB
Figure 24. Typical FFT Plot
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C031_SBOS708.png
REF6241 driving REF pin of ADS8881,
fIN = 2 kHz, SNR = 99 dB, THD = –123.6 dB
Figure 26. Typical FFT Plot
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C033_SBOS708.png
REF6225 driving REF pin of ADS8881,
fIN = 1 kHz, SNR = 95.4 dB, THD = –124 dB
Figure 28. Typical FFT Plot
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C035_SBOS708.png
REF6225 driving REF pin of ADS8881,
fIN = 10 kHz, SNR = 94.0 dB, THD = –119.3 dB
Figure 30. Typical FFT Plot
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C048_SBOS708.png
REF6250 driving REF pin of ADS8881 operating at 1 MSPS,
negative full-scale input to ADS8881
Figure 32. Reference Droop
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C050_SBOS708.png
AINP = AINN = VREF / 2 for ADS8881,
sampling rate = 1 MSPS
Figure 34. DC Input Histogram
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C052_SBOS708.png
AINP = AINN = VREF / 2 for ADS8881,
sampling rate = 100 kSPS
Figure 36. DC Input Histogram
REF6225 REF6230 REF6233 REF6241 REF6245 REF6250 C042_SBOS748.png
1 LSB = 19.07 µV, with ADS8881 at 1 MSPS
Figure 38. Reference Droop Comparison