ZHCSM18 July   2021  – January 2023 ADS9817

ADVANCE INFORMATION  

  1. 特性
  2. 应用
  3. 说明
  4. Revision History
  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
    6. 6.6 Timing Requirements
    7. 6.7 Switching Characteristics
    8. 6.8 Timing Diagrams
    9. 6.9 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Analog Inputs
        1. 7.3.1.1 Programmable Gain Amplifier (PGA)
        2. 7.3.1.2 Input Clamp Protection Circuit
        3. 7.3.1.3 Wide-Common-Mode Voltage Rejection Circuit
        4. 7.3.1.4 Programmable Low-Pass Filter
        5. 7.3.1.5 Gain Error Calibration
      2. 7.3.2 ADC Transfer Function
      3. 7.3.3 ADC Sampling Clock Input
      4. 7.3.4 Reference
        1. 7.3.4.1 Internal Reference Voltage
        2. 7.3.4.2 External Reference Voltage
      5. 7.3.5 Test Patterns for Data Interface
        1. 7.3.5.1 User-Defined Test Pattern
        2. 7.3.5.2 User-Defined Alternating Test Pattern
        3. 7.3.5.3 Ramp Test Pattern
    4. 7.4 Programming
      1. 7.4.1 Register Write
      2. 7.4.2 Register Read
      3. 7.4.3 Multiple Devices: Daisy-Chain Topology for SPI Configuration
        1. 7.4.3.1 Register Write With Daisy-Chain
        2. 7.4.3.2 Register Read With Daisy-Chain
    5. 7.5 Register Map
      1. 7.5.1 Register Bank 0
      2. 7.5.2 Register Bank 1
  8. Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Data Acquisition (DAQ) System
      2. 8.2.2 Design Requirements
      3. 8.2.3 Detailed Design Procedure
        1. 8.2.3.1 CMOS Data Interface
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      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

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

特性

  • 具有模拟前端的 8 通道 18 位 ADC:
    • 双路同步采样:4 × 1 个通道
    • 恒定的 1MΩ 输入阻抗前端
  • 可编程的低通滤波器带宽:
    • 21kHz 和 400kHz
  • 可编程输入范围:
    • ±12V、±10V、±7V、±5V、±3.5V 和 ±2.5V
    • 单端和差动输入
  • 输入过压保护:高达 ±18 V
  • 集成低漂移 4.096V 精密基准
  • 出色的性能:
    • DNL:±0.3 LSB,INL:±1.5 LSB
    • SNR:92.2 dB,THD:–112 dB
  • 电源:
    • 模拟和数字:5 V 和 1.8 V
    • 数字接口:1.2V 至 1.8V
  • 温度范围:–40°C 至 +125°C
器件框图