SBAS843A september   2017  – july 2023 ADS8588H

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  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  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. 7 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. 8 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. 9 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

7.4.1.15 DB8/DOUTB

DB8/DOUTB is a dual-function digital output pin.

In parallel interface mode (PAR/SER/BYTE SEL = 0), use this pin to output bit 8 of the conversion result for each analog channel when both the CS and RD signals are pulled low.

When the device operates in parallel byte interface mode (PAR/SER/BYTE SEL = 1 and DB15/BYTE SEL = 1), this pin remains in a tri-state mode.

In serial interface mode (PAR/SER/BYTE SEL = 1 and DB15/BYTE SEL = 0), this pin outputs the conversion data for the second half count of device input channels (channels 5-8 of the ADS8588H).