ICL7106/7107 ICL7106/ICL7107 1 3 2 Digit A/D Converters General Description Features S Improved 2nd Source (see Page 3 for Maxim The Maxim ICL7106/ICL7107 are monolithic analog-to- Advantage) digital converters (ADCs). They have very high input S Guaranteed First Reading Recovery from impedances and require no external display drive cir- Overrange cuitry. On-board active components include polarity and S On-Board Display Drive CapabilityNo External digit drivers, segment decoders, voltage reference and Circuitry Required a clock circuit. The ICL7106 will directly drive a nonmulti- LCDICL7106 plexed liquid crystal display (LCD), whereas the ICL7107 LEDICL7107 will directly drive a common anode light emitting diode S High-Impedance CMOS Differential Inputs (LED) display. S Low Noise (< 15V ) without Hysteresis or P-P Versatility and accuracy are inherent features of these Overrange Hangover converters. The dual-slope conversion technique auto- S Clock and Reference On-Chip matically rejects interference signals common in industri- S True Differential Reference and Input al environments. The true differential input and reference are particularly useful when making ratiometric measure- S True Polarity Indication for Precision Null Applications ments (ohms or bridge transducers). Maxim has added a zero-integrator phase to the ICL7106 and ICL7107, S Monolithic CMOS Design eliminating overrange hangover and hysteresis effects. Finally, these devices offer high accuracy by lowering Order Information rollover error to less than one count and zero reading drift to less than 1FV/NC. PART TEMP RANGE PIN-PACKAGE These devices are used in a wide range of digital panel ICL7106CPL+ 0C to +70C 40 PDIP meter applications. Most applications, however, involve ICL7106CQH+ 0C to +70C 44 PLCC the measurement and display of analog data. ICL7107CPL+ 0C to +70C 40 PDIP Applications ICL7107CQH+ 0C to +70C 44 PLCC Functional Diagrams +Denotes a lead(Pb)-free/RoHS-compliant package. Pressure Temperature Speed Voltage Conductance Material Pin Configurations Thickness Resistance Current + Typical Operating Circuit LCD DISPLAY ANALOG INPUT ICL7106 9V V REF TO ANALOG V FULL-SCALE INPUT REF PDIP COMMON (P32) Pin Configurations appear at end of data sheet.1.000V 2.000V 200.0mV 100.0mV Functional Diagrams continued at end of data sheet. Pin Configurations continued at end of data sheet UCSP is a trademark of Maxim Integrated Products, Inc. TheMaxim Advantag signifies an upgraded quality level. At no additional cost we offer a second-source device that is subject to the following: guaranteed performance over temperature along with tighter test specifications on many key parameters and device enhancement, when needed, that result in improved performance without changing the functionality. For pricing, delivery, and ordering information, please contact Maxim Direct For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maximLQWHJUDWHG.com. 19-0948 Rev 1 1/12 at 1-888-629-4642, or visit Maxims website at www.maximintegrated.com. AVAILABLEICL7106/ICL7107 1 3 2 Digit A/D Converters ABSOLUTE MAXIMUM RATINGS Continuous Power Dissipation (T = +70NC)(Note 2) Supply Voltage A PDIP (derate 16.7mW/NC above +70NC) ................1333.3mW ICL7106, V+ to V- ..............................................................15V PLCC (derate 13.3mW/NC above +70NC)...............1066.7mW ICL7107, V+ to GND ........................................................ +6V Operating Temperature Range ............................. 0NC to +70NC ICL7107, V- to GND ...........................................................-9V Storage Temperature Range ............................ -55NC to +160NC Analog Input Voltage (either input) (Note 1) ................. V+ to V- Lead Temperature (soldering, 10s) ................................+300NC Reference Input Voltage (either input) ...........................V+ to V- Soldering Temperature (reflow) Clock Input PDIP .............................................................................+260NC ICL7106 .................................................................TEST to V+ PLCC ...........................................................................+245NC ICL7107 ................................................................. GND to V+ Note 1: Input voltages may exceed the supply voltages, provided the input current is limited to 100A. Note 2: Dissipation rating assumes device is mounted with all leads soldered to the PCB. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (Note 3) PARAMETER CONDITIONS MIN TYP MAX UNITS Digital Zero Input Reading V = 0V, full scale = 200.0mV -000.0 000.0 +000.0 IN Reading Digital Ratiometric Reading V = V , V = 100mV 999 999/1000 1000 IN REF REF Reading Rollover Error (Difference in Reading for Equal Positive and Negative Reading Near -V = +V = 200.0mV -1 Q2 +1 Counts IN IN Full Scale) Linearity (Maximum Deviation from Best Full scale = 200mV or full scale = 2.000V -1 Q2 +1 Counts Straight Line Fit) Common-Mode Rejection Ratio (Note 4) V = Q1V, V = 0V, full scale = 200.0mV 50 FV/V CM IN Noise (Pk-Pk Value Not Exceeded V = 0V, full scale = 200mV 15 FV IN 95% of Time) Input Leakage Current V = 0V 1 10 pA IN Zero Reading Drift V = 0V, 0NC < T < +70NC 0.2 1 FV/NC IN A V = 199.0mV, 0NC < T < +70NC IN A Scale Factor Temperature Coefficient 1 5 ppm/NC (external reference 0ppm/NC) V+ Supply Current (Does Not Include LED V = 0V 0.8 1.8 mA IN Current for ICL7107) V- Supply Current (ICL7107 Only) 0.6 1.8 mA Analog Common Voltage 25kI between common and positive supply 2.4 2.8 3.2 V (With Respect to Positive Supply) Temperature Coefficient of Analog 25kI between common and positive supply 80 ppm/NC Common (With Respect to Positive Supply) The electrical characteristics above are a reproduction of a portion of Intersil s copyrighted (1983/1984) data book. This information does not constitute any representation by Maxim that Intersil s products will perform in accordance with these specifications. The Electrical Characteristics tabl along with the descriptive excerpts from the original manufacturer s data sheet have been included in this data sheet solely for comparative purposes. 2 Maxim Integrated