ZHCSNR2 December   2021 DAC43508 , DAC53508

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configurations and 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: SPI
    7. 7.7  Timing Requirements: Logic
    8. 7.8  Timing Diagrams
    9. 7.9  Typical Characteristics: Static Performance
    10. 7.10 Typical Characteristics: Dynamic Performance
    11. 7.11 Typical Characteristics: General
  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 DAC Transfer Function
        2. 8.3.1.2 DAC Register Update and LDAC Functionality
        3. 8.3.1.3 CLR Functionality
        4. 8.3.1.4 Output Amplifier
      2. 8.3.2 Reference
      3. 8.3.3 Power-On Reset (POR)
      4. 8.3.4 Software Reset
    4. 8.4 Device Functional Modes
      1. 8.4.1 Power-Down Mode
    5. 8.5 Programming
      1. 8.5.1 Serial Peripheral Interface (SPI)
    6. 8.6 Register Map
      1. 8.6.1 DEVICE_CONFIG Register (address = 01h) [reset = 00FFh]
      2. 8.6.2 STATUS_TRIGGER Register (address = 02h) [reset = 0000h]
      3. 8.6.3 BRDCAST Register (address = 03h) [reset = 0000h]
      4. 8.6.4 DACn_DATA Register (address = 08h to 0Fh) [reset = 0000h]
  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 Curve
      2. 9.2.2 Programmable Window Comparator
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curve
  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 接收文档更新通知
    3. 12.3 支持资源
    4. 12.4 Trademarks
    5. 12.5 静电放电警告
    6. 12.6 术语表
  13. 13Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

3 说明

10 位 DAC53508 和 8 位 DAC43508 (DACx3508) 是低功耗、八通道、电压输出数模转换器 (DAC)。DACx3508 根据设计在 1.8V 至 5.5V 的宽电源电压范围内具有单调性。DACx3508 使用外部基准，可提供 1.8V 至 5.5V 的满标度输出电压范围，同时每通道消耗的静态电流为 0.1mA。DACx3508 还包括基于每通道且用户可编程的断电寄存器。这些寄存器有助于 DAC 输出缓冲器以 10kΩ-AGND 断电状态启动，并保持该状态，直到向这些输出缓冲器发出加电命令。

DACx3508 具有低静态电流、宽电源电压范围、八通道和每通道断电选项，因此非常适合高密度、低功耗的电池供电系统。

这些器件通过 3 线（只写）SPI 接口进行通信。这些器件还具有负载 DAC (LDAC) 和清零 CLR 输入。

器件信息
器件型号封装(1)封装尺寸（标称值）
DAC53508WQFN (16)3.00mm × 3.00mm
DAC43508
(1) 如需了解所有可用封装，请参阅数据表末尾的可订购产品附录。

 

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