ICL7116:3 1/2位ADC,可直接驱动LCD显示/保持

The Maxim ICL7116 and ICL7117 are 3½ digit monolithic analog-to-digital converters. They differ from the Maxim ICL7106 and ICL7107 in that the ICL7116 and ICL7117 have a Hold pin, which makes it possible to hold or “freeze” a reading. These integrating ADCs have very high input impedances and directly drive LCD (ICL7116) and LED (ICL7117) displays. Versatility and accuracy are inherent features of these converters. The dual-slope conversion technique automatically rejects interference signals common in industrial environments. The true differential input is particularly useful when making ratiometric measurements (ohms or bridge transducers). Maxim has added a zero-integrator phase to the ICL7116 and ICL7117, eliminating overrange hangover and hysteresis effects. Finally, these devices offer high accuracy by lowering rollover error to less than one count and zero reading drift to less than 1µV/°C.

关键特性
  • Improved 2nd Source!
  • Hold Pin Allows Indefinite Display Hold
  • Guaranteed First Reading Recovery from Overrange
  • On-Board Display Drive Capability—No External Circuitry Required: LCD (ICL7116), LED (ICL7117)
  • High-Impedance CMOS Differential Inputs
  • Low Noise (< 15µVP-P) Without Hysteresis or Overrange Hangover
  • Clock and Reference On-Chip
  • Zero Input Gives Zero Reading
  • True Polarity Indication for Precision Null Applications
ICL7116、ICL7117:引脚配置
ICL7116、ICL7117:引脚配置
应用
    数据手册DataSheet
    语言下载文件备注
    英文ICL7116-ICL7117.pdfRev 1; 10/2013
    关键参数
    Part NumberResolution
    (±Counts)
    Data BusDiff/S.E. InputInternal VREF
    (V)
    External VREF
    (V)
    External VREF
    (V)
    Bipolar VIN
    (±V)
    Package/PinsBudgetary
    Price
    nominalminmaxmaxSee Notes
    ICL711620007-SegmentDiff. Only2.8-93.5
    • CDIP(W)/40
    • PDIP(W)/40
    • PLCC/44
    $6.09 @1k
    ICL7117-55
    • CDIP(W)/40
    • MQFP/44
    • PDIP(W)/40
    • PLCC/44
    $7.92 @500
    技术资料
    相关产品
    • MAX136:低功耗、3 1/2位ADC,带有显示/保持和直接LCD驱动器
    订购型号
    型号状况推荐替代产品封装温度RoHS/无铅
    ICL7116C/D生产中DICE SALES,;NA引脚;DICE S;0°C至+70°C参考数据资料
    ICL7116CJL停止供货CDIP(W),;40引脚;851.8mm²0°C至+70°CRoHS/无铅:否
    ICL7116CPL停止供货ICL7116CPL+PDIP(W),;40引脚;835.7mm²0°C至+70°CRoHS/无铅:否
    ICL7116CPL+生产中PDIP(W),;40引脚;835.7mm²0°C至+70°CRoHS/无铅:无铅
    ICL7116CPL+3停止供货PDIP(W),;40引脚;835.7mm²0°C至+70°CRoHS/无铅:无铅
    ICL7116CPL-3停止供货PDIP(W),;40引脚;835.7mm²0°C至+70°CRoHS/无铅:否
    ICL7116CQH+D生产中PLCC,;44引脚;311.5mm²0°C至+70°CRoHS/无铅:无铅
    ICL7116CQH+TD生产中PLCC,;44引脚;311.5mm²0°C至+70°CRoHS/无铅:无铅
    ICL7116CQH-D停止供货ICL7116CQH+DPLCC,;44引脚;311.5mm²0°C至+70°CRoHS/无铅:否
    ICL7116CQH-TD停止供货ICL7116CQH+TDPLCC;44引脚0°C至+70°C参考数据资料
    ICL7116-ICL7117.pdf ICL7117
    Delta-Sigma ADCs Replace Integrating ADCs for Panel Meters MAX1499
    Understanding Integrating ADCs ICL7137
    ICL7116-ICL7117.pdf ICL7117