SLVSKW2 January   2026 ADS1278QML-SP

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Quality Conformance Inspection
    7. 5.7 Timing Requirements: SPI Format
    8. 5.8 Timing Requirements: Frame-Sync Format
    9. 5.9 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1  Sampling Aperture Matching
      2. 6.3.2  Frequency Response
        1. 6.3.2.1 High-Speed, Low-Power, And Low-Speed Modes
        2. 6.3.2.2 High-Resolution Mode
      3. 6.3.3  Phase Response
      4. 6.3.4  Settling Time
      5. 6.3.5  Data Format
      6. 6.3.6  Analog Inputs (AINP, AINN)
      7. 6.3.7  Voltage Reference Inputs (VREFP, VREFN)
      8. 6.3.8  Clock Input (CLK)
      9. 6.3.9  Mode Selection (MODE)
      10. 6.3.10 Synchronization (SYNC)
      11. 6.3.11 Power-Down ( PWDN)
      12. 6.3.12 Format[2:0]
      13. 6.3.13 Serial Interface Protocols
      14. 6.3.14 SPI Serial Interface
        1. 6.3.14.1 SCLK
        2. 6.3.14.2 DRDY/FSYNC (SPI Format)
        3. 6.3.14.3 DOUT
        4. 6.3.14.4 DIN
      15. 6.3.15 Frame-Sync Serial Interface
        1. 6.3.15.1 SCLK
        2. 6.3.15.2 DRDY/FSYNC (Frame-Sync Format)
        3. 6.3.15.3 DOUT
        4. 6.3.15.4 DIN
      16. 6.3.16 DOUT Modes
        1. 6.3.16.1 TDM Mode
        2. 6.3.16.2 TDM Mode, Fixed-Position Data
        3. 6.3.16.3 TDM Mode, Dynamic Position Data
        4. 6.3.16.4 Discrete Data Output Mode
      17. 6.3.17 Daisy-Chaining
      18. 6.3.18 Modulator Output
      19. 6.3.19 Pin Test Using Test[1:0] Inputs
      20. 6.3.20 VCOM Output
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
      3. 7.2.3 Application Curve
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Receiving Notification of Documentation Updates
    2. 8.2 Community Resources
    3. 8.3 Trademarks
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

6.3.12 Format[2:0]

Data can be read from the ADS1278QML-SP with two interface protocols (SPI or Frame-Sync) and several options of data formats (TDM/Discrete and Fixed/Dynamic data positions). The FORMAT[2:0] inputs are used to select among the options. Table 6-11 lists the available options. See the DOUT Modes section for details of the DOUT Mode and Data Position.

Table 6-11 Data Output Format
FORMAT[2:0] INTERFACE PROTOCOL DOUT MODE DATA POSITION
000 SPI TDM Dynamic
001 SPI TDM Fixed
010 SPI Discrete —
011 Frame-Sync TDM Dynamic
100 Frame-Sync TDM Fixed
101 Frame-Sync Discrete —
110 Modulator Mode — —