ICL7106/7107
AVAILAB LE ICL7106/ICL7107 31/2 Digit A/D Converters
General Description Features
S Improved 2nd Source (see Page 3 for "Maxim Advantage") S Guaranteed First Reading Recovery from Overrange S On-Board Display Drive Capability--No External Circuitry Required LCD--ICL7106 LED--ICL7107 S High-Impedance CMOS Differential Inputs S Low Noise (< 15µVP-P) without Hysteresis or Overrange Hangover S Clock and Reference On-Chip S True Differential Reference and Input S True Polarity Indication for Precision Null Applications S Monolithic CMOS Design 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 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 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. Order Information
PART ICL7106CPL+ ICL7106CQH+ ICL7107CPL+ ICL7107CQH+ TEMP RANGE 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C PIN-PACKAGE 40 PDIP 44 PLCC 40 PDIP 44 PLCC Pressure Voltage Resistance Applications Functional Speed Diagrams Temperature
Conductance Current Material Thickness +Denotes a lead(Pb)-free/RoHS-compliant package. Pin Configurations
+ Typical Operating Circuit
LCD DISPLAY ANALOG INPUT ICL7106
9V VREF PDIP Pin 2.000V Configurations appear at end of data sheet. COMMON (P32) 1.000V 100.0mV 200.0mV Diagrams continued at end of data sheet. Functional Pin Configurations continued at end of data sheet UCSP is a trademark of Maxim Integrated Products, Inc. The "Maxim Advantage" signifies an upgraded quality level. At no additional cost we offer a second-source device that is subject to the following: guaranteed performance ov …
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