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| ICL7106/7107 www..com Description The ICL7106 and ICL7107 are high performance,low power 3 1 / 2 digit A/D converters. Included are seven segment decoders, display drivers, a reference, and a clock. The ICL7106 is designed to interface with a liquid crystal display (LCD) and includes a multiplexed backplane drive, the ICL7107 will directly drive an instrument size light emitting diode (LED) display. The ICL7106 and ICL7107 bring together a combination of high accuracy, versatility, and true economy. True differential inputs and reference are useful in all systems, but give the designer an uncommon advantage when measuring load cells, strain gauges and other bridge type transducers. Finally he true economy of single power Supply operation ( ICL7106 ), enables a high performance panel meter to be built with the addition of only 10 passive display. Components and a ICL7106, ICL7107 TOP VIEW Features * Guaranteed Zero Reading for 0V input on All Scales * True Polarity at Zero for Precise Null Detection (1' s) V+ D1 C1 B1 A1 F1 G1 E1 D2 C2 (10' s) B2 A2 F2 E2 D3 (100' s) B3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 OSC 1 39 OSC 2 38 OSC 3 37 TEST 36 REF HI 35 REF LO 34 CREF+ CREF33 COMMON 32 IN HI 31 IN LO 30 A-Z 29 BUFF 28 INT 27 Vs) 26 G2 (10' 25 C3 24 A3 23 22 G3 21 BP/GND * True Differential input and Reference, Direct Display * Drive - LCD ICL7106 - LED ICL7107 * Low Noise-Less Than 15 uVp-p * On Chip Clock and Reference * Low Power DissipationTypically Less Than 10mW * No Additional Active Circuits Required * New Small Outline Surface Mount Package Available F3 E3 (1000) AB4 (MINUS) POL Absolute Maximum Ratings Supply Voltage ICL7106, V+ to V-.......................................................15V ICL7107, V+ to GND...................................................6V ICL7107, V- to GND....................................................-9V Analog input Voltage (Either input) (Note 1)..................V+ to VReference input Voltage (Either input)...........................V+ to VClock input ICL7106......................................................TEST to V+ ICL7107.......................................................GND to V+ BEIJING ESTEK ELECTRONICS CO.,LTD 1 ICL7106/7107 www..com Electrical Characteristics Parameters Test conditions VIN = 0.0V, Full-Scale = 200mV VIN = V REF V REF 100mV , = -V IN = +V IN 200mV Difference in Reading for Equal Positive and Negative inputs Near Full-Scale Full-Scale = 200mV or Full-Scale = 2V Maximum Deviation from Best Straight Line Fit (Note 5) VCM = 1V, V IN = 0V, 200mV (Note 5) Full-Scale = Min -000.0 999 -1 Typ 000.0 Max 000.0 Unit Digital Reading Digital Reading Counts SYSTEMS PEREFORMANCE Zero input Reading Ratiometric Reading Rollover Error 999/1000 - 1000 +1 Linearity -1 - +1 Counts Common Mode rejection Ratio End Power Supply Character V+ Supply Current End Power Supply Character VSupply Current COMMON Pin Analog Common Voltage DISPLAY DRIVER ICL7106 ONLY Segment Drive Voltage Pk-Pk Pk-Pk Backplane Drive Voltage ICL7107 ONLY Current Segment Sinking (Except Pin 19 and 20) Pin 19 Only Pin 20 Only 2.4 50 - - - 1.8 1.8 3.2 uV/V mA mA V VIN = 0 (Does Not include LED Current for ICL7107) ICL7107 Only 25 k W Between Common and Positive Supply (With Respect to + Supply) V+ = to V- = 9V 4 5 6 V V+ = 5V, Segment Voltage = 3V 5 10 4 8 16 7 - - - mA mA mA NOTES: 1. Input voltages may exceed the supply voltages provided the input current is limited to 2. Unless otherwise noted, specifications apply to both the ICL7106 and ICL7107 at TA = +25 tested in the circuit of Figure 1. ICL7107 is tested in the circuit of Figure 2. 3. Not tested, guaranteed by design. uA fCLOCK 48kHz. ICL7106 is C, = BEIJING ESTEK ELECTRONICS CO.,LTD 2 ICL7106/7107 www..com Typical Applications Circuit Figure 1. ICL7106 Test circuit and typical application with LCD display components selected for 200 mV full scale BEIJING ESTEK ELECTRONICS CO.,LTD 3 ICL7106/7107 www..com Figure 2. ICL7107 Test circuit and typical application with LED display components selected for 200 mV full scale Ordering Information O RDERING NUM BER ICL7107 P ACK AG E DIP - 40 M ARKIN G ICL7107 Address : Postalcode:100039 Tel: 86-010-58895780 / 81 / 82 / 83 / 84 Http://www.estek.com.cn Email:sales@estek.com.cn 6A06--6A07 Rm 6A07,Changyin Office Building ,No.88,Yong Ding Road,Hai Dian District ,Beijing Fax : 010-58895793 REV No:01-060811 BEIJING ESTEK ELECTRONICS CO.,LTD 4 |
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