ZHCSL30B June   2009  – March 2020 PGA280

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      典型应用
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 Electrical Characteristics
    3. 6.3 Timing Requirements: Serial Interface
    4. 6.4 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Functional Blocks
        1. 7.3.1.1 Input Switch Network
        2. 7.3.1.2 Input Amplifier, Gain Network, and Buffer
        3. 7.3.1.3 Current Buffer
        4. 7.3.1.4 Input Protection
        5. 7.3.1.5 EMI Susceptibility
        6. 7.3.1.6 Output Stage
        7. 7.3.1.7 Output Filter
        8. 7.3.1.8 Single-Ended Output
        9. 7.3.1.9 Error Detection
      2. 7.3.2 Error Indicators
        1. 7.3.2.1 Input Clamp Conduction (ICAerr)
        2. 7.3.2.2 Input Overvoltage (IOVerr)
        3. 7.3.2.3 Gain Network Overload (GAINerr)
        4. 7.3.2.4 Output Amplifier (OUTerr)
        5. 7.3.2.5 CheckSum Error (CRCerr)
    4. 7.4 Device Functional Modes
      1. 7.4.1 GPIO Operation Mode
        1. 7.4.1.1 CS Mode
    5. 7.5 Programming
      1. 7.5.1 SPI and Register Description
      2. 7.5.2 Command Structure and Register Overview
        1. 7.5.2.1 Command Byte
        2. 7.5.2.2 Extended CS
          1. 7.5.2.2.1 SPI Timing Diagrams (Read and Write)
          2. 7.5.2.2.2 GPIO Pin Reference
          3. 7.5.2.2.3 Checksum
      3. 7.5.3 GPIO Configuration
      4. 7.5.4 Buffer Timing
    6. 7.6 Register Map
      1. 7.6.1  Register 0: Gain and External MUX Address (address = 00h) [reset = 0000 0000b]
      2. 7.6.2  Register 1: Software Reset Register (address = 01h) [reset = 0000 0000b]
      3. 7.6.3  Register 2: SPI: MODE Selection to GPIO-Pin (address = 02h) [reset = 0000 0000b]
      4. 7.6.4  Register 3: BUF Timeout Register (address = 03h) [reset = 0001 1001b]
      5. 7.6.5  Register 4: Error Register (address = 04h) [reset = 0000 0000b]
      6. 7.6.6  Register 5: GPIO Register (address = 05h) [reset = 0000 0000b]
      7. 7.6.7  Register 6: Input Switch Control Register 1 (address = 06h) [reset = 0110 0000b]
      8. 7.6.8  Register 7: Input Switch Control Register 2 (address =07h ) [reset = 0000 0000b]
      9. 7.6.9  Register 8: GPIO Configuration Register (address = 08h) [reset = 0000 0000b]
      10. 7.6.10 Register 9: CS Configuration Mode Register (address = 09h) [reset = 0000 0000b]
      11. 7.6.11 Register 10: Configuration Register 1 (address = 0Ah) [reset = 0000 0000b]
      12. 7.6.12 Register 11: Configuration Register 2 (address = 0Bh) [reset = 0001 0000b]
      13. 7.6.13 Register 12: Special Functions Register (address = 0Ch) [reset = 0000 0000b]
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 External Clock Synchronization
      2. 8.1.2 Quiescent Current
      3. 8.1.3 Settling Time
      4. 8.1.4 Overload Recovery
  9. 9 Power Supply Recommendations
  10. 10器件和文档支持
    1. 10.1 接收文档更新通知
    2. 10.2 支持资源
    3. 10.3 商标
    4. 10.4 静电放电警告
    5. 10.5 Glossary
  11. 11机械、封装和可订购信息

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

7.3.1.6 Output Stage

The output stage power is connected to the low-voltage supply (normally 3 V or 5 V) that is used by the subsequent signal path of the system. This design prevents overloading of the low-voltage signal path.

The output signal is fully differential around a common-mode voltage (VOCM). The VOCM input pin is typically connected to midsupply voltage to offer the widest signal amplitude range. VOCM is a high-impedance input that requires an external connection to a voltage within the supply boundaries. The usable voltage range for the VOCM input is specified in the and must be observed.

The output stage can be set to a gain of 1 V/V and 1⅜ V/V. THe output stage is set to 1 V/V after a device reset or power-on, and is controlled by the gain multiplication factor.

Both signal outputs, VOP and VON, swing symmetrically around VOCM. The signal is represented as the voltage between the two outputs and does not require an accurate VOCM. Therefore, the signal output does not include ground noise or grounding errors. Noise or drift on VOCM is normally rejected by the common-mode rejection capability of the subsequent signal stage.

The signal that passes through the output stage is internally monitored for two error conditions: clipping of the signal to the supply rail and overcurrent. In fault conditions, an error flag bit is set (OUTerr).