ICL7107

3 1/2位A/D转换器


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说明

The Maxim ICL7106/ICL7107 are monolithic analog-to-digital converters (ADCs). They have very high input impedances and require no external display drive circuitry. On-board active components include polarity and digit drivers, segment decoders, voltage reference and a clock circuit. The ICL7106 will directly drive a nonmultiplexed liquid crystal display (LCD), whereas the ICL7107 will directly drive a common anode light emitting diode (LED) display.

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 and reference are particularly useful when making ratiometric measurements (ohms or bridge transducers). Maxim has added a zero-integrator phase to the ICL7106 and ICL7107, 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.

These devices are used in a wide range of digital panel meter applications. Most applications, however, involve the measurement and display of analog data.

ICL7106、ICL7107:引脚配置 ICL7106、ICL7107:引脚配置 放大+

关键特性

  • Improved 2nd Source (see Page 3 of the full data sheet for "Maxim Advantage")
  • Guaranteed First Reading Recovery from Overrange
  • On-Board Display Drive Capability—No External Circuitry Required
    • LCD—ICL7106
    • LED—ICL7107
  • High-Impedance CMOS Differential Inputs
  • Low Noise (< 15µVP-P) without Hysteresis or Overrange Hangover
  • Clock and Reference On-Chip
  • True Differential Reference and Input
  • True Polarity Indication for Precision Null Applications
  • Monolithic CMOS Design

应用

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Part NumberResolution
(±Counts)
Conv. Rate
(ksps)
Data BusDiff/S.E. InputInternal VREF
(V)
External VREF
(V)
External VREF
(V)
Bipolar VIN
(±V)
Package/PinsBudgetary
Price
maxnominalminmaxmaxSee Notes
ICL7106 20000.0037-SegmentDiff. Only2.8-93.5
PDIP/40
PLCC/44
$6.09 @1k
ICL7107 -55
MQFP/44
PDIP/40
PLCC/44
查看所有Display-Oriented ADCs (28)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

CAD Symbols and Footprints

  • ICL7107CJL
  • ICL7107CMH+D
  • ICL7107CMH+TD
  • ICL7107CMH-D
  • ICL7107CMH-TD
  • ICL7107CPL
  • ICL7107CPL+
  • ICL7107CPL+3
  • ICL7107CPL-3
  • ICL7107CQH+D
  • ICL7107CQH+TD
  • ICL7107CQH-D
  • ICL7107CQH-TD
  • ICL7107EQH+D
  • ICL7107EQH+TD
  • ICL7107EQH-D
  • ICL7107EQH-TD
  • 型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

    备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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