ZHCSRX2 march   2023 DAC53004W

PRODUCTION DATA  

  1. 特性
  2. 应用
  3. 说明
  4. Revision History
  5. Pin Configuration and Functions
  6. 规格
    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: Voltage Output
    6. 6.6  Electrical Characteristics: Current Output
    7. 6.7  Electrical Characteristics: Comparator Mode
    8. 6.8  Electrical Characteristics: General
    9. 6.9  Timing Requirements: I2C Standard Mode
    10. 6.10 Timing Requirements: I2C Fast Mode
    11. 6.11 Timing Requirements: I2C Fast Mode Plus
    12. 6.12 Timing Requirements: SPI Write Operation
    13. 6.13 Timing Requirements: SPI Read and Daisy Chain Operation (FSDO = 0)
    14. 6.14 Timing Requirements: SPI Read and Daisy Chain Operation (FSDO = 1)
    15. 6.15 Timing Requirements: GPIO
    16. 6.16 Timing Diagrams
    17. 6.17 Typical Characteristics: Voltage Output
    18. 6.18 Typical Characteristics: Current Output
    19. 6.19 Typical Characteristics: Comparator
    20. 6.20 Typical Characteristics: General
  7. 详细说明
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 特性说明
      1. 7.3.1 智能数模转换器 (DAC) 架构
      2. 7.3.2 数字输入/输出
      3. 7.3.3 Nonvolatile Memory (NVM)
      4. 7.3.4 Power Consumption
    4. 7.4 器件功能模式
      1. 7.4.1 电压输出模式
        1. 7.4.1.1 电压基准和 DAC 传递函数
          1. 7.4.1.1.1 Internal Reference
          2. 7.4.1.1.2 External Reference
          3. 7.4.1.1.3 Power-Supply as Reference
      2. 7.4.2 Current-Output Mode
      3. 7.4.3 比较器模式
        1. 7.4.3.1 可编程迟滞比较器
        2. 7.4.3.2 Programmable Window Comparator
      4. 7.4.4 故障转储模式
      5. 7.4.5 应用特定模式
        1. 7.4.5.1 电压裕量和调节
          1. 7.4.5.1.1 高阻抗输出和 PROTECT 输入
          2. 7.4.5.1.2 Programmable Slew-Rate Control
          3. 7.4.5.1.3 PMBus Compatibility Mode
        2. 7.4.5.2 函数生成
          1. 7.4.5.2.1 Triangular Waveform Generation
          2. 7.4.5.2.2 Sawtooth Waveform Generation
          3. 7.4.5.2.3 Sine Waveform Generation
      6. 7.4.6 器件复位和故障管理
        1. 7.4.6.1 上电复位 (POR)
        2. 7.4.6.2 External Reset
        3. 7.4.6.3 Register-Map Lock
        4. 7.4.6.4 NVM 循环冗余校验 (CRC)
          1. 7.4.6.4.1 NVM-CRC-FAIL-USER 位
          2. 7.4.6.4.2 NVM-CRC-FAIL-INT 位
      7. 7.4.7 Power-Down Mode
    5. 7.5 编程
      1. 7.5.1 SPI 编程模式
      2. 7.5.2 I2C Programming Mode
        1. 7.5.2.1 F/S 模式协议
        2. 7.5.2.2 I2C 更新序列
          1. 7.5.2.2.1 地址字节
          2. 7.5.2.2.2 Command Byte
        3. 7.5.2.3 I2C 读取序列
      3. 7.5.3 通用输入/输出 (GPIO) 模式
    6. 7.6 Register Map
      1. 7.6.1  NOP Register (address = 00h) [reset = 0000h]
      2. 7.6.2  DAC-X-MARGIN-HIGH Register (address = 01h, 07h, 0Dh, 13h) [reset = 0000h]
      3. 7.6.3  DAC-X-MARGIN-LOW Register (address = 02h, 08h, 0Eh, 14h) [reset = 0000h]
      4. 7.6.4  DAC-X-VOUT-CMP-CONFIG Register (address = 03h, 09h, 0Fh, 15h) [reset = 0000h]
      5. 7.6.5  DAC-X-IOUT-MISC-CONFIG Register (address = 04h, 0Ah, 10h, 16h) [reset = 0000h]
      6. 7.6.6  DAC-X-CMP-MODE-CONFIG Register (address = 05h, 0Bh, 11h, 17h) [reset = 0000h]
      7. 7.6.7  DAC-X-FUNC-CONFIG Register (address = 06h, 0Ch, 12h, 18h) [reset = 0000h]
      8. 7.6.8  DAC-X-DATA Register (address = 19h, 1Ah, 1Bh, 1Ch) [reset = 0000h]
      9. 7.6.9  COMMON-CONFIG Register (address = 1Fh) [reset = 0FFFh]
      10. 7.6.10 COMMON-TRIGGER Register (address = 20h) [reset = 0000h]
      11. 7.6.11 COMMON-DAC-TRIG Register (address = 21h) [reset = 0000h]
      12. 7.6.12 GENERAL-STATUS Register (address = 22h) [reset = 00h, DEVICE-ID, VERSION-ID]
      13. 7.6.13 CMP-STATUS 寄存器(地址 = 23h)[复位 = 0000h]
      14. 7.6.14 GPIO-CONFIG Register (address = 24h) [reset = 0000h]
      15. 7.6.15 DEVICE-MODE-CONFIG Register (address = 25h) [reset = 0000h]
      16. 7.6.16 INTERFACE-CONFIG Register (address = 26h) [reset = 0000h]
      17. 7.6.17 SRAM-CONFIG Register (address = 2Bh) [reset = 0000h]
      18. 7.6.18 SRAM-DATA Register (address = 2Ch) [reset = 0000h]
      19. 7.6.19 DAC-X-DATA-8BIT Register (address = 40h, 41h, 42h, 43h) [reset = 0000h]
      20. 7.6.20 BRDCAST-DATA Register (address = 50h) [reset = 0000h]
      21. 7.6.21 PMBUS-PAGE Register [reset = 0300h]
      22. 7.6.22 PMBUS-OP-CMD-X Register [reset = 0000h]
      23. 7.6.23 PMBUS-CML Register [reset = 0000h]
      24. 7.6.24 PMBUS-VERSION 寄存器 [复位 = 2200h]
  8. 应用和实现
    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 布局
      1. 8.4.1 布局指南
      2. 8.4.2 Layout Example
  9. Device and Documentation Support
    1. 9.1 接收文档更新通知
    2. 9.2 支持资源
    3. 9.3 Trademarks
    4. 9.4 静电放电警告
    5. 9.5 术语表
  10. 10Mechanical, Packaging, and Orderable Information

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Overview

The 12-bit DAC63004W and 10-bit DAC53004W (DACx3004W) are a pin-compatible family of quad-channel, buffered, voltage-output and current-output, smart digital-to-analog converters (DACs). The DAC channels are independently configurable as voltage or current output. The DAC outputs change to Hi-Z when VDD is off. This feature is useful in voltage-margining applications. These smart DACs contain nonvolatile memory (NVM), an internal reference, automatically detectable SPI or I2C interface, PMBus-compatibility in I2C mode, force-sense output, and a general-purpose input. These devices support Hi-Z power-down modes by default, which can be configured to 10 kΩ-GND or 100 kΩ-GND using the NVM. The DACx3004W have a power-on-reset (POR) circuit that makes sure all the registers start with default or user-programmed settings using NVM. The DACx3004W operate with either an internal reference, external reference, or with a power supply as the reference, and provide a full-scale output of 1.8 V to 5.5 V.

The DACx3004W devices support I2C standard mode (100Kbps), fast mode (400Kbps), and fast mode plus (1Mbps). The I2C interface can be configured with four target addresses using the A0 pin. These devices also support specific PMBus commands such as turn on/off, margin high or low, and more. The SPI mode supports a three-wire interface by default with up to a 50-MHz SCLK input. The GPIO input can be configured as SDO in the NVM for SPI read capability. The GPIO input can alternatively be configured as the LDAC, PD, STATUS, FAULT-DUMP, RESET, or PROTECT function.

The DACx3004W also include digital slew rate control, and support standard waveform generation such as sine and cosine, triangular, and sawtooth waveforms. These devices can generate pulse-width modulation (PWM) output with the combination of the triangular or sawtooth waveform and the FB pin. The force-sense outputs of the DAC channels can be used as programmable comparators. The comparator mode allows programmable hysteresis, latching comparator, window comparator, and fault-dump to the NVM. These features enable the DACx3004W to go beyond the limitations of a conventional DAC that depends on a processor to function. As a result of processor-less operation and the smart feature set, the DACx3004W are called smart DACs.