JAJSIV0B June   2009  – March 2020 PGA280

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      代表的なアプリケーション
  4. 4 改訂履歴
  5. 5 概要（続き）
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 Electrical Characteristics
    3. 7.3 Timing Requirements: Serial Interface
    4. 7.4 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Functional Blocks
        1. 8.3.1.1 Input Switch Network
        2. 8.3.1.2 Input Amplifier, Gain Network, and Buffer
        3. 8.3.1.3 Current Buffer
        4. 8.3.1.4 Input Protection
        5. 8.3.1.5 EMI Susceptibility
        6. 8.3.1.6 Output Stage
        7. 8.3.1.7 Output Filter
        8. 8.3.1.8 Single-Ended Output
        9. 8.3.1.9 Error Detection
      2. 8.3.2 Error Indicators
        1. 8.3.2.1 Input Clamp Conduction (ICAerr)
        2. 8.3.2.2 Input Overvoltage (IOVerr)
        3. 8.3.2.3 Gain Network Overload (GAINerr)
        4. 8.3.2.4 Output Amplifier (OUTerr)
        5. 8.3.2.5 CheckSum Error (CRCerr)
    4. 8.4 Device Functional Modes
      1. 8.4.1 GPIO Operation Mode
        1. 8.4.1.1 CS Mode
    5. 8.5 Programming
      1. 8.5.1 SPI and Register Description
      2. 8.5.2 Command Structure and Register Overview
        1. 8.5.2.1 Command Byte
        2. 8.5.2.2 Extended CS
          1. 8.5.2.2.1 SPI Timing Diagrams (Read and Write)
          2. 8.5.2.2.2 GPIO Pin Reference
          3. 8.5.2.2.3 Checksum
      3. 8.5.3 GPIO Configuration
      4. 8.5.4 Buffer Timing
    6. 8.6 Register Map
      1. 8.6.1  Register 0: Gain and External MUX Address (address = 00h) [reset = 0000 0000b]
      2. 8.6.2  Register 1: Software Reset Register (address = 01h) [reset = 0000 0000b]
      3. 8.6.3  Register 2: SPI: MODE Selection to GPIO-Pin (address = 02h) [reset = 0000 0000b]
      4. 8.6.4  Register 3: BUF Timeout Register (address = 03h) [reset = 0001 1001b]
      5. 8.6.5  Register 4: Error Register (address = 04h) [reset = 0000 0000b]
      6. 8.6.6  Register 5: GPIO Register (address = 05h) [reset = 0000 0000b]
      7. 8.6.7  Register 6: Input Switch Control Register 1 (address = 06h) [reset = 0110 0000b]
      8. 8.6.8  Register 7: Input Switch Control Register 2 (address =07h ) [reset = 0000 0000b]
      9. 8.6.9  Register 8: GPIO Configuration Register (address = 08h) [reset = 0000 0000b]
      10. 8.6.10 Register 9: CS Configuration Mode Register (address = 09h) [reset = 0000 0000b]
      11. 8.6.11 Register 10: Configuration Register 1 (address = 0Ah) [reset = 0000 0000b]
      12. 8.6.12 Register 11: Configuration Register 2 (address = 0Bh) [reset = 0001 0000b]
      13. 8.6.13 Register 12: Special Functions Register (address = 0Ch) [reset = 0000 0000b]
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 External Clock Synchronization
      2. 9.1.2 Quiescent Current
      3. 9.1.3 Settling Time
      4. 9.1.4 Overload Recovery
  10. 10Power Supply Recommendations
  11. 11デバイスおよびドキュメントのサポート
    1. 11.1 ドキュメントの更新通知を受け取る方法
    2. 11.2 サポート・リソース
    3. 11.3 商標
    4. 11.4 静電気放電に関する注意事項
    5. 11.5 Glossary
  12. 12メカニカル、パッケージ、および注文情報

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

8.3.1.8 Single-Ended Output

The output stage of PGA280 is designed for highest precision. The fully-differential output avoids grounding errors and noise, and delivers twice the signal amplitude compared to single-ended signals. However, if desired, the output can be taken single-ended from one of the output pins referred to the voltage at the VOCM pin. The output stage errors now relate to half the signal amplitude and half the signal gain. The unused output is unconnected, but not disconnected from error detection. The usable voltage range for the VOCM input is specified in the and must be observed: the output swing (of both outputs) should not saturate to the supply. Separate specifications for offset voltage and drift indicate higher offset voltage at lower gains, because some error sources are not cancelled in the output stage connected in single-ended mode. Note that the gain is one-half of the gain set in reference to the gain table (see Table 2).