SBAS843A september   2017  – july 2023 ADS8588H

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Revision History
  6. Pin Configuration and Functions
  7. 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  Timing Requirements: CONVST Control
    7. 6.7  Timing Requirements: Data Read Operation
    8. 6.8  Timing Requirements: Parallel Data Read Operation, CS and RD Tied Together
    9. 6.9  Timing Requirements: Parallel Data Read Operation, CS and RD Separate
    10. 6.10 Timing Requirements: Serial Data Read Operation
    11. 6.11 Timing Requirements: Byte Mode Data Read Operation
    12. 6.12 Timing Requirements: Oversampling Mode
    13. 6.13 Timing Requirements: Exit Standby Mode
    14. 6.14 Timing Requirements: Exit Shutdown Mode
    15. 6.15 Switching Characteristics: CONVST Control
    16. 6.16 Switching Characteristics: Parallel Data Read Operation, CS and RD Tied Together
    17. 6.17 Switching Characteristics: Parallel Data Read Operation, CS and RD Separate
    18. 6.18 Switching Characteristics: Serial Data Read Operation
    19. 6.19 Switching Characteristics: Byte Mode Data Read Operation
    20. 6.20 Timing Diagrams
    21. 6.21 Typical Characteristics
  8. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Analog Inputs
      2. 7.3.2  Analog Input Impedance
      3. 7.3.3  Input Clamp Protection Circuit
      4. 7.3.4  Programmable Gain Amplifier (PGA)
      5. 7.3.5  Third-Order, Low-Pass Filter (LPF)
      6. 7.3.6  ADC Driver
      7. 7.3.7  Digital Filter and Noise
      8. 7.3.8  Reference
        1. 7.3.8.1 Internal Reference
        2. 7.3.8.2 External Reference
        3. 7.3.8.3 Supplying One VREF to Multiple Devices
      9. 7.3.9  ADC Transfer Function
      10. 7.3.10 ADS8588H Device Family Comparison
    4. 7.4 Device Functional Modes
      1. 7.4.1 Device Interface: Pin Description
        1. 7.4.1.1  REFSEL (Input)
        2. 7.4.1.2  RANGE (Input)
        3. 7.4.1.3  STBY (Input)
        4. 7.4.1.4  PAR/SER/BYTE SEL (Input)
        5. 7.4.1.5  CONVSTA, CONVSTB (Input)
        6. 7.4.1.6  RESET (Input)
        7. 7.4.1.7  RD/SCLK (Input)
        8. 7.4.1.8  CS (Input)
        9. 7.4.1.9  OS[2:0]
        10. 7.4.1.10 BUSY (Output)
        11. 7.4.1.11 FRSTDATA (Output)
        12. 7.4.1.12 DB15/BYTE SEL
        13. 7.4.1.13 DB14/HBEN
        14. 7.4.1.14 DB[13:9]
        15. 7.4.1.15 DB8/DOUTB
        16. 7.4.1.16 DB7/DOUTA
        17. 7.4.1.17 DB[6:0]
      2. 7.4.2 Device Modes of Operation
        1. 7.4.2.1 Power-Down Modes
          1. 7.4.2.1.1 Standby Mode
          2. 7.4.2.1.2 Shutdown Mode
        2. 7.4.2.2 Conversion Control
          1. 7.4.2.2.1 Simultaneous Sampling on All Input Channels
          2. 7.4.2.2.2 Simultaneous Sampling Two Sets of Input Channels
        3. 7.4.2.3 Data Read Operation
          1. 7.4.2.3.1 Parallel Data Read
          2. 7.4.2.3.2 Parallel Byte Data Read
          3. 7.4.2.3.3 Serial Data Read
          4. 7.4.2.3.4 Data Read During Conversion
        4. 7.4.2.4 Oversampling Mode of Operation
  9. Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Examples
  10. Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

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

Typical Characteristics

at TA = 25°C, AVDD = 5 V, DVDD = 3 V, internal reference VREF = 2.5 V, and fS = 500 kSPS per channel (unless otherwise noted)

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Figure 6-10 Analog Input Current vs Input Voltage Over Temperature (±10 V)
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Figure 6-12 Input Impedance vs Free-Air Temperature
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Mean = –0.47, sigma = 0.59, number of hits = 4096, VIN = 0 V
Figure 6-14 DC Histogram of Codes (±5 V)
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Figure 6-16 DNL vs Free-Air Temperature
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Figure 6-18 INL vs All Codes (±5 V)
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Figure 6-20 INL vs Free-Air Temperature (±5 V)
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Figure 6-22 Offset Drift Histogram Distribution (±10 V)
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Figure 6-24 Offset Drift Histogram Distribution (±5 V)
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External reference
Figure 6-26 Gain Error vs Temperature
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External reference
Figure 6-28 Gain Error Across Channels vs
Free-Air Temperature (±10 V)
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External reference
Figure 6-30 Gain Error Across Channels vs Free-Air Temperature (±5 V)
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Number of points = 256k, SNR = 92.68 dB, SINAD = 92.61 dB, THD = –110.27 dB, SFDR = 114.58 dB
Figure 6-32 Typical FFT Plot (±10 V)
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Number of points = 4k, SNR = 96.72 dB, SINAD = 96.28 dB, THD = –106.41 dB, SFDR = 112.74 dB
Figure 6-34 Typical FFT Plot for OSR 32x (±10 V)
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OSR = 0
Figure 6-36 SNR vs Input Frequency for Different Input Ranges
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Figure 6-38 SNR vs Input Frequency for Different OSR (±10 V)
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OSR = 0
Figure 6-40 SINAD vs Input Frequency for Different Input Ranges
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Figure 6-42 THD vs Input Frequency for Different Input Ranges
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Figure 6-44 THD vs Input Frequency for Different Source Impedances (±10 V)
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Figure 6-46 Isolation Crosstalk vs Frequency
(Inputs Within Range)
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Figure 6-48 Analog Supply Current (Operational) vs
Free-Air Temperature
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Figure 6-50 Analog Supply Current vs Free-Air Temperature (Standby)
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Figure 6-11 Analog Input Current vs Input Voltage Over Temperature (±5 V)
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Mean = –0.36, sigma = 0.55, number of hits = 4096, VIN = 0 V
Figure 6-13 DC Histogram of Codes (±10 V)
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Figure 6-15 DNL for All Codes
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Figure 6-17 INL vs All Codes (±10 V)
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Figure 6-19 INL vs Free-Air Temperature (±10 V)
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Figure 6-21 Offset Error vs Free-Air Temperature
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Figure 6-23 Offset Error Across Channels vs Free-Air Temperature (±10 V)
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Figure 6-25 Offset Error Across Channels vs Free-Air Temperature (±5 V)
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External reference
Figure 6-27 Gain Error Drift Histogram Distribution (±10 V)
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External reference
Figure 6-29 Gain Error Drift Histogram
Free-Air Distribution (±5 V)
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Figure 6-31 Gain Error as a Function of External Source Resistance
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Number of points = 256k, SNR = 92.02 dB, SINAD = 91.92 dB, THD = –108.11 dB, SFDR = 112.06 dB
Figure 6-33 Typical FFT Plot (±5 V)
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Number of points = 4k, SNR = 95.82 dB, SINAD = 95.38 dB, THD = –105.72 dB, SFDR = 110.17 dB
Figure 6-35 Typical FFT Plot for OSR 32x (±5 V)
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OSR = 0
Figure 6-37 SNR vs Free-Air Temperature for Different Input Ranges
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Figure 6-39 SNR vs Input Frequency for Different OSR (±5 V)
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OSR = 0
Figure 6-41 SINAD vs Free-Air Temperature for Different Input Ranges
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Figure 6-43 THD vs Free-Air Temperature for Different Input Ranges
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Figure 6-45 THD vs Input Frequency for Different Source Impedances (±5 V)
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Figure 6-47 Isolation Crosstalk vs Frequency
(Saturated Inputs)
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Figure 6-49 Analog Supply Current (Static) vs
Free-Air Temperature (Sampling)
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Figure 6-51 Analog Supply Current vs Free-Air Temperature (Shutdown)