ICL7106 Datasheet | Maxim Integrated

Description The Maxim ICL7106/ICL7107 are monolithic analog-todigital converters (ADCs). They have very high input impedances and require no external display drive circuitry. On-board active ponents 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 mon anode light emitting diode (LED) display. Versatility and accuracy are inherent features of these converters. The dual-slope conversion technique automatically rejects interference signals mon 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 1FV/NC. These devices are used in a wide range of digital panel meter applications. Most applications, however, involve the measurement and display of analog data. Pressure Voltage Resistance Applications Te Fmupenractutrieonal SDpieaedgrams Conductance Current Material Thickness Typical Operating Circuit ANALOG INPUT LCD DISPLAY VREF 9V Features SImproved 2nd Source (see Page 3 for “Maxim Advantage”) SGuaranteed First Reading Recovery from Overrange SOn-Board Display Drive Capability- No External Circuitry Required LCD- ICL7106 LED- ICL7107 SHigh-Impedance CMOS Differential Inputs SLow Noise (< 15µVP-P) without Hysteresis or Overrange Hangover SClock and Reference On-Chip STrue Differential Reference and Input STrue Polarity Indication for Precision Null Applications SMonolithic CMOS Design Order Information PART TEMP RANGE PIN-PACKAGE ICL7106CPL+ 0°C to +70°C 40 PDIP ICL7106CQH+ 0°C to +70°C 44 PLCC ICL7107CPL+ 0°C to...