SBASAD1A December   2023  – May 2024 ADC3910D025 , ADC3910D065 , ADC3910D125 , ADC3910S025 , ADC3910S065 , ADC3910S125

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 - Power Consumption
    6. 5.6  Electrical Characteristics - DC Specifications
    7. 5.7  Electrical Characteristics - AC Specifications (25 MSPS)
    8. 5.8  Electrical Characteristics - AC Specifications (65 MSPS)
    9. 5.9  Electrical Characteristics - AC Specifications (125 MSPS)
    10. 5.10 Timing Requirements
    11. 5.11 Output Interface Timing Diagram
    12. 5.12 Typical Characteristics - 25MSPS
    13. 5.13 Typical Characteristics - 65MSPS
    14. 5.14 Typical Characteristics - 125MSPS
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 ADC Features
        1. 6.3.1.1 Low Latency Mode
        2. 6.3.1.2 Full Digital Feature Mode
        3. 6.3.1.3 Interleaving Mode
      2. 6.3.2 Analog Input
        1. 6.3.2.1 Single Ended Input
        2. 6.3.2.2 Differential Input
        3. 6.3.2.3 Analog Input Bandwidth
      3. 6.3.3 Sampling Clock Input
      4. 6.3.4 Voltage Reference
      5. 6.3.5 Over-range (OVR)
      6. 6.3.6 Digital Features
        1. 6.3.6.1 Digital Down Converter
          1. 6.3.6.1.1 Digital Down Converter Data Select
          2. 6.3.6.1.2 Decimation Filter
          3. 6.3.6.1.3 DDC Over-range
          4. 6.3.6.1.4 Output Formatting with Decimation
        2. 6.3.6.2 Digital Comparator
          1. 6.3.6.2.1 Comparator Data Select
          2. 6.3.6.2.2 Comparator High and Low Threshold
          3. 6.3.6.2.3 Comparator Configuration Compare Mode
          4. 6.3.6.2.4 Comparator Event Configuration
        3. 6.3.6.3 Statistics Engine
          1. 6.3.6.3.1 Statistics Engine Data Select
          2. 6.3.6.3.2 Window Configuration
        4. 6.3.6.4 Digital Alerts
      7. 6.3.7 Digital Interface
        1. 6.3.7.1 Parallel CMOS Output
        2. 6.3.7.2 Serialized CMOS Output
      8. 6.3.8 Test Patterns
        1. 6.3.8.1 Bypass Test Pattern
        2. 6.3.8.2 Digital Test Pattern
    4. 6.4 Device Functional Modes
      1. 6.4.1 Normal Operation
      2. 6.4.2 Power Down Options
    5. 6.5 Programming
      1. 6.5.1 Configuration using the SPI interface
        1. 6.5.1.1 Register Write
        2. 6.5.1.2 Register Read
    6. 6.6 Register Maps
      1. 6.6.1 Register Descriptions
      2. 6.6.2 Statistics Engine Register Map
      3. 6.6.3 Alerts Register Map
  8. 7 Application Information Disclaimer
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Input Signal Path
        2. 7.2.2.2 Sampling Clock
        3. 7.2.2.3 Voltage Reference
      3. 7.2.3 Application Curves
    3. 7.3 Initialization Set Up
      1. 7.3.1 Register Initialization During Operation
    4. 7.4 Power Supply Recommendations
    5. 7.5 Layout
      1. 7.5.1 Layout Guidelines
      2. 7.5.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Receiving Notification of Documentation Updates
    2. 8.2 Support Resources
    3. 8.3 Trademarks
    4. 8.4 Electrostatic Discharge Caution
    5. 8.5 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information
6.3.6.2.4 Comparator Event Configuration

Figure 6-26 shows the digital comparator monitor events that can be configured as triggers.

The digital comparator has two options for asserting ALERT pin: event-based or window-based monitoring.

In event-based monitorin, the ALERT pin is asserted when an event is triggered based on the comparator configuration seen in Figure 6-27.

In window-based monitoring, the ALERT pin is only asserted when the number of event triggers recorded in CNT_MODE_x (0x1EA) crosses the threshold set in SPI register ALERT_THRESHOLD (0x1EC-0x1ED). Window-based monitoring is enabled in SPI register CNT_EN (0x1EA). Figure 6-28 shows an example of window-based monitoring.

ADC3910D025 ADC3910D065 ADC3910D125 ADC3910S025 ADC3910S065 ADC3910S125 Digital Comparator Event MonitoringFigure 6-26 Digital Comparator Event Monitoring
ADC3910D025 ADC3910D065 ADC3910D125 ADC3910S025 ADC3910S065 ADC3910S125 Event MonitoringFigure 6-27 Event Monitoring
ADC3910D025 ADC3910D065 ADC3910D125 ADC3910S025 ADC3910S065 ADC3910S125 Window MonitoringFigure 6-28 Window Monitoring