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      參數(shù)資料
      型號(hào): TC7126ARCKW
      元件分類: ADC
      英文描述: 1-CH DUAL-SLOPE ADC, PARALLEL ACCESS, PQFP44
      封裝: REVERSE, PLASTIC, QFP-44
      文件頁(yè)數(shù): 5/26頁(yè)
      文件大?。?/td> 413K
      代理商: TC7126ARCKW
      2006 Microchip Technology Inc.
      DS21458C-page 13
      TC7126/A
      6.6
      Reference Voltage Selection
      A full scale reading (2000 counts) requires the input
      signal be twice the reference voltage.
      Note:
      VFS = 2VREF.
      In some applications, a scale factor other than unity
      may exist between a transducer output voltage and the
      required digital reading. Assume, for example, a
      pressure transducer output for 2000lb/in2 is 400mV.
      Rather than dividing the input voltage by two, the
      reference voltage should be set to 200mV. This permits
      the transducer input to be used directly.
      The differential reference can also be used where a
      digital zero reading is required when VIN is not equal to
      zero. This is common in temperature measuring instru-
      mentation. A compensating offset voltage can be
      applied between analog common and VIN-. The trans-
      ducer output is connected between VIN+ and analog
      common.
      Required Full Scale Voltage*
      VREF
      20mV
      100mV
      2V
      1V
      相關(guān)PDF資料
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      TC7126ARCLW 1-CH DUAL-SLOPE ADC, PARALLEL ACCESS, PQCC44
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      相關(guān)代理商/技術(shù)參數(shù)
      參數(shù)描述
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