SBAS761A February   2020  – February 2020 ADS8355

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Block Diagram
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 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. Table 1. Timing Requirements
    7. Table 2. Switching Characteristics
    8. 6.6      Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Reference
      2. 7.3.2 Analog Inputs
        1. 7.3.2.1 Analog Input: Full-Scale Range Selection
        2. 7.3.2.2 Analog Input: Single-Ended and Pseudo-Differential Configurations
      3. 7.3.3 Transfer Function
    4. 7.4 Device Functional Modes
      1. 7.4.1 Conversion Data Read: Dual-SDO Mode (Default)
      2. 7.4.2 Conversion Data Read: Single-SDO Mode
      3. 7.4.3 Low-Power Modes
        1. 7.4.3.1 STANDBY Mode
        2. 7.4.3.2 PD (Power-Down) Mode
    5. 7.5 Programming
      1. 7.5.1 Register Read/Write Operation
    6. 7.6 Register Map
      1. 7.6.1 ADS8355 Registers
        1. 7.6.1.1  PD_STANDBY Register (Offset = 4h) [reset = 0h]
          1. Table 9. PD_STANDBY Register Field Descriptions
        2. 7.6.1.2  PD_KEY Register (Offset = 5h) [reset = 0h]
          1. Table 10. PD_KEY Register Field Descriptions
        3. 7.6.1.3  SDO_CTRL Register (Offset = Dh) [reset = 0h]
          1. Table 11. SDO_CTRL Register Field Descriptions
        4. 7.6.1.4  DATA_OUT_CTRL Register (Offset = 11h) [reset = 0h]
          1. Table 12. DATA_OUT_CTRL Register Field Descriptions
        5. 7.6.1.5  REF_SEL Register (Offset = 20h) [reset = 0h]
          1. Table 13. REF_SEL Register Field Descriptions
        6. 7.6.1.6  REFDAC_A_LSB Register (Offset = 24h) [reset = 0h]
          1. Table 14. REFDAC_A_LSB Register Field Descriptions
        7. 7.6.1.7  REFDAC_A_MSB Register (Offset = 25h) [reset = 0h]
          1. Table 15. REFDAC_A_MSB Register Field Descriptions
        8. 7.6.1.8  REFDAC_B_LSB Register (Offset = 26h) [reset = 0h]
          1. Table 16. REFDAC_B_LSB Register Field Descriptions
        9. 7.6.1.9  REFDAC_B_MSB Register (Offset = 27h) [reset = 0h]
          1. Table 17. REFDAC_B_MSB Register Field Descriptions
        10. 7.6.1.10 INPUT_CONFIG Register (Offset = 28h) [reset = 0h]
          1. Table 18. INPUT_CONFIG Register Field Descriptions
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Input Amplifier Selection
      2. 8.1.2 Charge Kickback Filter
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Community Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 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, AVDD = 5 V, DVDD = 3.3 V, VREF = 2.5 V (external), and fDATA = 1 MSPS (unless otherwise noted)
ADS8355 D001.gif
fIN = 2 kHz, SNR = 91.27 dB, THD = –96.78 dB
Figure 2. Typical FFT ADC A
ADS8355 D003.gif
fIN = 2 kHz
Figure 4. SNR vs Free-Air Temperature
ADS8355 D005.gif
fIN = 2 kHz
Figure 6. THD vs Free-Air Temperature
ADS8355 D007.gif
fIN = 2 kHz
Figure 8. SINAD vs Reference Voltage
ADS8355 D009.gif
Number of samples = 65536, standard deviation = 0.59
Figure 10. DC Histogram
ADS8355 D011.gif
Figure 12. Offset Error vs Free-Air Temperature
ADS8355 D013.gif
Figure 14. Differential Nonlinearity ADC A
ADS8355 D015.gif
Figure 16. Integral Nonlinearity ADC A
ADS8355 D017.gif
Figure 18. Differential Nonlinearity vs Free-Air Temperature
ADS8355 D019.gif
Figure 20. Differential Nonlinearity vs Reference Voltage
ADS8355 D021.gif
Figure 22. Analog Supply Current vs Free-Air Temperature
ADS8355 D002.gif
fIN = 2 kHz, SNR = 91.31 dB, THD = –96.04 dB
Figure 3. Typical FFT ADC B
ADS8355 D004.gif
fIN = 2 kHz
Figure 5. SINAD vs Free-Air Temperature
ADS8355 D006.gif
fIN = 2 kHz
Figure 7. SNR vs Reference Voltage
ADS8355 D008.gif
fIN = 2 kHz
Figure 9. THD vs Reference Voltage
ADS8355 D010.gif
VREFIO_x = 2.5 V
Figure 11. Internal Reference vs Free-Air Temperature
ADS8355 D012.gif
Figure 13. Gain Error vs Free-Air Temperature
ADS8355 D014.gif
Figure 15. Differential Nonlinearity ADC B
ADS8355 D016.gif
Figure 17. Integral Nonlinearity ADC B
ADS8355 D018.gif
Figure 19. Integral Nonlinearity vs Free-Air Temperature
ADS8355 D020.gif
Figure 21. Integral Nonlinearity vs Reference Voltage
ADS8355 D022.gif
Figure 23. Analog Supply Current vs SCLK Frequency