ICOM-ICL7106维修手册

MAXIMV3%Digit A/D ConverterGeneral DescriptionFeaturesThe Maxim ICL7106 and ICL7107 are monolithic analogImproved 2nd Sourcel (See 3rd page forEto digital converters.They have very high input imped-“Maxim Advantage"")ances and require no external display drive circuitry.On-board active components include polarity and digit drivGuaranteed first reading recovery fromers,segment decoders,voltage reference and a clockoverrangecircuit.The ICL7106 will directly drive a non-multiplexed71Oliquid crystal display (LCD)whereas the ICL7107 will di-On board Display Drive Capability-no externalrectly drive a common anode light emitting diode (LED)circuitry requireddisplay.LCD-ICL7106Versatility and accuracy are inherent features of theseLED-ICL7107converters.The dual-slope conversion technique auto.High Impedance CMOS Differential Inputsmatically rejects interference signals common in industri-oal environments.The true differential input and referenceLow Noise (15uV p-p)without hysteresis orare particularly useful when making ratiometric measure-overrange hangoverments (ohms or bridge transducers).Maxim has added azero-integrator phase to the ICL7106 and ICL7107,elimi-Clock and Reference On-Chipnating overrange hangover and hysteresis effects.Final-True Differential Reference and Inputly.these devices offer high accuracy by lowering rollovererror to less than one count and zero reading drift to lessTrue Polarity Indication for Precision Nullthan 1uV/C.ApplicationsApplicationsMonolithic CMOS designThese devices can be used in a wide range of digitalOrdering Informationpanel meter applications.Most applications,however,involve the measurement and display of analog data:PARTTEMP.RANGEPACKAGEPressureConductanceICL7106CPL O'C to +70C 40 Lead Plastic DIPVoltageCurrentICL7106CJL 0'C to +70C40 Lead CERDIPResistanceSpeedICL7106CQH 0'C to +70'C44 Lead Plastic Chip CarrierTemperatureMaterial ThicknessICL7106C/D OCto +70'CDiceTypical Operating CircuitICL7107CPL 0C to +70C 40 Lead Plastic DIP1CL7107CJL0°Cto+70C40 Lead CERDIP1CL7107CQH0°Cto+70C44 Lead Plastic Chip CarrierLCD1CL7107C/D0Cto+70°CDicePin Configuration888OSC 116et'sTESTREF LOCOMMON10571005好TES)1oo-昌A51005G52001.▣BP(7106)GNC(7107)202.mW100.0m(MINUS SIGN)See last page for Plastic Chip Carrier Pin Configurationalong withany key parameters:and deviceenhancements,when needed,that resuft in improved performance wit changingMXI川Maxim Integrated Products 1