SLASES7A July   2019  – December 2019 DAC43401 , DAC53401

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Functional Block Diagram
      2.      Power-Supply Control With the DACx3401
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information
    5. 7.5  Electrical Characteristics
    6. 7.6  Timing Requirements: I2CTM Standard mode
    7. 7.7  Timing Requirements: I2CTM Fast mode
    8. 7.8  Timing Requirements: I2CTM Fast+ mode
    9. 7.9  Typical Characteristics: VDD = 1.8 V (Reference = VDD) or VDD = 2 V (Internal Reference)
    10. 7.10 Typical Characteristics: VDD = 5.5 V (Reference = VDD) or VDD = 5 V (Internal Reference)
    11. 7.11 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Digital-to-Analog Converter (DAC) Architecture
        1. 8.3.1.1 Reference Selection and DAC Transfer Function
          1. 8.3.1.1.1 Power Supply as Reference
          2. 8.3.1.1.2 Internal Reference
      2. 8.3.2 DAC Update
        1. 8.3.2.1 DAC Update Busy
      3. 8.3.3 Nonvolatile Memory (EEPROM or NVM)
        1. 8.3.3.1 NVM Cyclic Redundancy Check
        2. 8.3.3.2 NVM_CRC_ALARM_USER Bit
        3. 8.3.3.3 NVM_CRC_ALARM_INTERNAL Bit
      4. 8.3.4 Programmable Slew Rate
      5. 8.3.5 Power-on-Reset (POR)
      6. 8.3.6 Software Reset
      7. 8.3.7 Device Lock Feature
      8. 8.3.8 PMBus Compatibility
    4. 8.4 Device Functional Modes
      1. 8.4.1 Power Down Mode
      2. 8.4.2 Continuous Waveform Generation (CWG) Mode
      3. 8.4.3 PMBus Compatibility Mode
      4. 8.4.4 Medical Alarm Generation Mode
        1. 8.4.4.1 Low-Priority Alarm
        2. 8.4.4.2 Medium-Priority Alarm
        3. 8.4.4.3 High-Priority Alarm
        4. 8.4.4.4 Interburst Time
        5. 8.4.4.5 Pulse Off Time
        6. 8.4.4.6 Pulse On Time
    5. 8.5 Programming
      1. 8.5.1 F/S Mode Protocol
      2. 8.5.2 DACx3401 I2C Update Sequence
      3. 8.5.3 Address Byte
      4. 8.5.4 Command Byte
      5. 8.5.5 I2C Read Sequence
    6. 8.6 Register Map
      1. 8.6.1  STATUS Register (address = D0h) (reset = 000Ch or 0014h)
        1. Table 18. STATUS Register Field Descriptions
      2. 8.6.2  GENERAL_CONFIG Register (address = D1h) (reset = 01F0h)
        1. Table 19. GENERAL_CONFIG Register Field Descriptions
      3. 8.6.3  MED_ALARM_CONFIG Register (address = D2h) (reset = 0000h)
        1. Table 20. MED_ALARM_CONFIG Register Field Descriptions
      4. 8.6.4  TRIGGER Register (address = D3h) (reset = 0008h)
        1. Table 21. TRIGGER Register Field Descriptions
      5. 8.6.5  DAC_DATA Register (address = 21h) (reset = 0000h)
        1. Table 22. DAC_DATA Register Field Descriptions
      6. 8.6.6  DAC_MARGIN_HIGH Register (address = 25h) (reset = 0000h)
        1. Table 23. DAC_MARGIN_HIGH Register Field Descriptions
      7. 8.6.7  DAC_MARGIN_LOW Register (address = 26h) (reset = 0000h)
        1. Table 24. DAC_MARGIN_LOW Register Field Descriptions
      8. 8.6.8  PMBUS_OPERATION Register (address = 01h) (reset = 0000h)
        1. Table 25. PMBUS_OPERATION Register Field Descriptions
      9. 8.6.9  PMBUS_STATUS_BYTE Register (address = 78h) (reset = 0000h)
        1. Table 26. PMBUS_STATUS_BYTE Register Field Descriptions
      10. 8.6.10 PMBUS_VERSION Register (address = 98h) (reset = 2200h)
        1. Table 27. PMBUS_VERSION Register Field Descriptions
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Programmable LED Biasing
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Power-Supply Margining
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curves
      3. 9.2.3 Medical Alarm Generation
        1. 9.2.3.1 Design Requirements
        2. 9.2.3.2 Detailed Design Procedure
        3. 9.2.3.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Related Links
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Support Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • 1 LSB INL and DNL (10-bit and 8-bit)
  • Wide operating range
    • Power supply: 1.8 V to 5.5 V
    • Temperature range: –40˚C to +125˚C
  • PMBus™ compatible I2C interface
    • Standard, Fast, and Fast+ modes
    • Digital slew rate control
    • 1.62-V VIH with VDD = 5.5 V
  • User-programmable nonvolatile memory (NVM/EEPROM)
    • Save and recall all register settings
  • Programmable waveform generation: Square, ramp, and sawtooth
  • Preprogrammed medical-alarm tone-generation mode: low, medium, and high priority alarms
  • Internal reference
  • Very low power: 0.2 mA at 1.8 V
  • Flexible startup: High impedance or 10K-GND
  • Tiny package: 8-pin WSON (2 mm × 2 mm)
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