ZHCSDL7B November 2014  – March 2016 AMC7834

PRODUCTION DATA. 

  1. 特性
  2. 应用范围
  3. 说明
  4. 修订历史记录
  5. Pin Configuration and Functions
  6. Specifications
    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—DAC Specifications
    6. 6.6 Electrical Characteristics—ADC, Current and Temperature Sensor Specifications
    7. 6.7 Electrical Characteristics—General Specifications
    8. 6.8 Serial Interface Timing Requirements
    9. 6.9 Switching Characteristics—DAC Specifications
    10. 6.10Switching Characteristics—ADC, Current and Temperature Sensor Specifications
    11. 6.11Switching Characteristics—General Specifications
    12. 6.12Typical Characteristics
      1. 6.12.1Typical Characteristics: DAC
      2. 6.12.2Typical Characteristics: ADC
      3. 6.12.3Typical Characteristics: Current Sense
      4. 6.12.4Typical Characteristics: Temperature Sensor
      5. 6.12.5Typical Characteristics: Reference
  7. Detailed Description
    1. 7.1Overview
    2. 7.2Functional Block Diagram
    3. 7.3Feature Description
      1. 7.3.1Digital-to-Analog Converters (DACs)
        1. 7.3.1.1DAC Configuration
          1. 7.3.1.1.1Bipolar DACs (DAC1, DAC2, DAC3, and DAC4)
          2. 7.3.1.1.2Auxiliary DACs (AUXDAC1, AUXDAC2, AUXDAC3, and AUXDAC4)
        2. 7.3.1.2DAC Register Structure
        3. 7.3.1.3DAC Clamp Operation
      2. 7.3.2Analog-to-Digital Converter (ADC)
        1. 7.3.2.1External Analog Inputs
        2. 7.3.2.2Internal Bipolar DAC Monitoring Inputs
        3. 7.3.2.3ADC Sequencing
      3. 7.3.3Temperature Sensors
        1. 7.3.3.1Internal Temperature Sensor
        2. 7.3.3.2Remote Temperature Sensors
      4. 7.3.4Current Sensors
      5. 7.3.5Drain Switch Control
      6. 7.3.6Programmable Out-of-Range Alarms
        1. 7.3.6.1ADC Internal Monitoring Input Out-of-Range Alarm
        2. 7.3.6.2Current-Sense Out-of-Range Alarm
        3. 7.3.6.3Temperature Sensors Out-of-Range Alarm
        4. 7.3.6.4Bipolar DACs High Alarm
        5. 7.3.6.5AVSS Detection Alarm
        6. 7.3.6.6AVDD Detection Alarm
        7. 7.3.6.7Hysteresis
        8. 7.3.6.8False-Alarm Protection
      7. 7.3.7Reference Specifications
        1. 7.3.7.1Internal Reference Operation
        2. 7.3.7.2External Reference Operation
      8. 7.3.8General Purpose I/Os
    4. 7.4Device Functional Modes
      1. 7.4.1Open-Loop Mode
      2. 7.4.2Closed-Loop Mode
    5. 7.5Programming
    6. 7.6Register Maps
      1. 7.6.1 Power Mode: Address 0x02
        1. 7.6.1.1Power Mode Register (address = 0x02) [reset = 0x000]
      2. 7.6.2 Device Identification: Address 0x04 through 0x0C
        1. 7.6.2.1Device ID Register (address = 0x04) [reset = 0x0C34]
        2. 7.6.2.2Version ID Register (address = 0x06) [reset = 0x0001]
        3. 7.6.2.3Vendor ID Register (address = 0x0C) [reset = 0x0451]
      3. 7.6.3 General Device Configuration: Address 0x10 through 0x16
        1. 7.6.3.1AMC Configuration 0 Register (address = 0x10) [reset = 0x0300]
        2. 7.6.3.2AMC Configuration 1 Register (address = 0x11) [reset = 0x036A]
        3. 7.6.3.3ADC MUX Register (address = 0x12) [reset = 0x0000]
        4. 7.6.3.4Closed Loop Settling Time Register (address = 0x14) [reset = 0x2222]
        5. 7.6.3.5DAC Sync Register (address = 0x15) [reset = 0x0000]
        6. 7.6.3.6DAC Range Register (address = 0x16) [reset = 0x0000]
      4. 7.6.4 Clamp and Alarm Configuration: Address 0x17 through 0x1B
        1. 7.6.4.1CLAMP Configuration Register (address = 0x17) [reset = 0x003F]
        2. 7.6.4.2SLEEP1 Configuration Register (address = 0x18) [reset = 0xFF00]
        3. 7.6.4.3SLEEP2 Configuration Register (address = 0x19) [reset = 0xFF00]
        4. 7.6.4.4ALARMOUT Clamp Register (address = 0x1A) [reset = 0x0000]
        5. 7.6.4.5ALARMOUT Configuration Register (address = 0x1B) [reset = 0x0000]
      5. 7.6.5 Conversion Trigger: Address 0x1C
        1. 7.6.5.1DAC and ADC Trigger Register (address = 0x1C) [reset = 0x0000]
      6. 7.6.6 Reset: Address 0x1D
        1. 7.6.6.1Software Reset Register (address = 0x1D) [reset = 0x0000]
      7. 7.6.7 Device Status: Address 0x1E and 0x1F
        1. 7.6.7.1Alarm Status Register (address = 0x1E) [reset = 0x0000]
        2. 7.6.7.2General Status Register (address = 0x1F) [reset = 0x0000]
      8. 7.6.8 ADC Data: Address 0x20 through 0x2F
        1. 7.6.8.1ADCn-Internal-Data Register (address = 0x20 to 0x23) [reset = 0x0000]
        2. 7.6.8.2ADCn-External-Data Register (address = 0x24 to 0x27) [reset = 0x0000]
        3. 7.6.8.3CSn-Data Register (address = 0x28 to 0x2B) [reset = 0x0000]
        4. 7.6.8.4LT-Data Register (address = 0x2D) [reset = 0x0000]
        5. 7.6.8.5RTn-Data Register (address = 0x2E to 0x2F) [reset = 0x0000]
      9. 7.6.9 DAC Data: Address 0x30 through 0x37
        1. 7.6.9.1DACn-Data Register (address = 0x30 to 0x33) [reset = 0x0000]
        2. 7.6.9.2AUXDACn-Data Register (address = 0x34 to 0x37) [reset = 0x0000]
      10. 7.6.10Closed-Loop Control: Address 0x38 through 0x3B
        1. 7.6.10.1ClosedLoopn Register (address = 0x38 to 0x3B) [reset = 0x0000]
      11. 7.6.11Alarm Threshold Configuration: Address 0x40 through 0x4F
        1. 7.6.11.1ADCINTn/CSn-Upper-Threshold Register (address = 0x40, 0x42, 0x44 and 0x46) [reset = 0x0FFF]
        2. 7.6.11.2ADCINTn/CSn-Lower-Threshold Register (address = 0x41, 0x43, 0x45 and 0x47) [reset = 0x0000]
        3. 7.6.11.3TS-Upper-Threshold Register (address = 0x48, 0x4A and 0x4C) [reset = 0x07FF]
        4. 7.6.11.4TS-Lower-Threshold Register (address = 0x49, 0x4B and 0x4D) [reset = 0x0800]
        5. 7.6.11.5DACnn-Upper-Threshold Register (address = 0x4E and 0x4F) [reset = 0x0FFF]
      12. 7.6.12Alarm Hysteresis Configuration: Address 0x50 and 0x56
        1. 7.6.12.1ADCINTn/CSn-Hysteresis Register (address = 0x50 to 0x53) [reset = 0x0008]
        2. 7.6.12.2LT-Hysteresis Register (address = 0x54) [reset = 0x0008]
        3. 7.6.12.3RTn-Hysteresis Register (address = 0x55 to 0x56) [reset = 0x0008]
      13. 7.6.13GPIO: Address 0x58
        1. 7.6.13.1GPIO Register (address = 0x58) [reset = 0x000F]
  8. Application and Implementation
    1. 8.1Application Information
    2. 8.2Typical Application
      1. 8.2.1Design Requirements
      2. 8.2.2Detailed Design Procedure
        1. 8.2.2.1ADC Input Conditioning
        2. 8.2.2.2DAC Output Range Selection
        3. 8.2.2.3Temperature Sensing Applications
        4. 8.2.2.4Current Sensing Applications
      3. 8.2.3Application Performance Curve
    3. 8.3Initialization Set Up
      1. 8.3.1Initialization Procedure
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1Layout Guidelines
    2. 10.2Layout Example
  11. 11器件和文档支持
    1. 11.1文档支持
      1. 11.1.1相关文档 
    2. 11.2社区资源
    3. 11.3商标
    4. 11.4静电放电警告
    5. 11.5Glossary
  12. 12机械、封装和可订购信息

1 特性

  • 8 个具有可编程范围的单调性 12 位数模转换器 (DAC)
    • 4 个双极 DAC:
      –4V 至 1V,–5V 至 0V 以及 0V 至 5V
    • 4 个单极 DAC:
      0V 至 5V 以及 2.5V 至 7.5V
    • 高电流驱动能力:高达 ±10mA
    • 可选钳位电压
  • 多通道 12 位逐次逼近寄存器 (SAR) 模数转换器 (ADC)
    • 4 个外部模拟输入:0V 至 2.5V 范围
    • 4 个用于双极 DAC 监视的内部输入
    • 可编程超范围警报
  • 4 个高侧电流感测放大器
    • 共模电压:4V 至 60V
    • 可选闭环漏极电流控制器操作
  • 温度感测功能
    • 内部温度传感器
    • 2 个远程温度二极管驱动器
  • 2.5V 内部基准电压
  • 4 个通用 I/O 端口 (GPIO)
  • 低功耗 SPI 兼容串行接口
    • 4 线模式,1.7V 至 3.6V 工作电压
  • 工作温度范围:-40°C 至 +125°C
  • 采用 56 引脚超薄型四方扁平无引线 (VQFN) 封装

2 应用范围

  • 通信基础设施:
    • 蜂窝基站
    • 微波回程
    • 光纤网络
  • 通用监视器和控制
  • 数据采集系统

3 说明

AMC7834 器件是一款针对功率放大器 (PA) 偏置的高度集成、低功耗、模拟监视和控制解决方案,能够对温度、电流和电压进行监控。

该器件集成了一个多通道 12 位模数转换器 (ADC);八个 12 位数模转换器 (DAC);四个高侧电流感测放大器,可以选择设置它们作为四个独立闭环漏极电流控制器的一部分;一个精确的片上温度传感器和两个远程温度二极管驱动器;四个可配置的通用 I/O 端口 (GPIO);以及一个精确的内部基准。其高集成度极大地减少了组件数量,并且简化了 PA 偏置系统设计。

该器件具有功能集成和宽工作温度范围等诸多优势,因此适合用作多通道射频 (RF) 通信系统中 PA 的一体化、低成本偏置控制电路。凭借灵活的 DAC 输出范围和宽共模电压电流传感器,此器件可用作针对多种晶体管技术(例如 LDMOS、GaA 和 GaN)的偏置解决方案。AMC7834 功能集对通用监视器和控制系统而言同样有益。

德州仪器 (TI) 提供 了一个完备的模拟监视和控制 (AMC) 产品系列, 以满足各类应用不同的通道数、附加特性或者转换器解决方案需求。更多信息,敬请访问 www.ti.com.cn/amc

器件信息(1)

器件型号封装封装尺寸(标称值)
AMC7834VQFN (56)8.00mm x 8.00mm
  1. 如需了解所有可用封装,请见数据表末尾的可订购产品附录。
AMC7834 alt_slas972.gif

4 修订历史记录

Changes from A Revision (April 2015) to B Revision

Changes from * Revision (November 2014) to A Revision

  • 发布完整版量产数据数据表 Go