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3 1 M 2 digit a/d converters icl7106/icl7107 general description the maxim icl7106/icl7107 are monolithic analog-to-digital converters (adcs). they have very high input impedances and require no external display drive cir - cuitry. on-board active components include polarity and digit drivers, segment decoders, voltage reference and a clock circuit. the icl7106 will directly drive a nonmulti - plexed 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 auto - matically rejects interference signals common in industri - al environments. the true differential input and reference are particularly useful when making ratiometric measure - ments (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 1 f v/ n c. these devices are used in a wide range of digital panel meter applications. most applications, however, involve the measurement and display of analog data. applications 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 (< 15v p-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 pressurevoltage resistance temperatureconductance current speedmaterial thickness typical operating circuit pin configurations order information + denotes a lead(pb)-free/rohs-compliant package. 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 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. 19-0948; rev 1; 1/12 pin configurations continued at end of data sheet pdip part temp range pin-package icl7106cpl+ 0c to +70c 40 pdip icl7106cqh+ 0c to +70c 44 plcc icl7107cpl+ 0c to +70c 40 pdip icl7107cqh+ 0c to +70c 44 plcc icl7106 analog input 9v v ref to analogcommon (p32) full-scale input2.000v 200.0mv v ref 1.000v100.0mv lcd display + for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim?s website at www.maximintegrated.com. downloaded from: http:/// lqwhjudwhg
2 maxim integrated 3 1 M 2 digit a/d converters icl7106/icl7107 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. 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 v- reference input voltage (either input) ........................... v+ to v- clock input icl7106 ................................................................. test to v+ icl7107 ................................................................. gnd to v+ continuous power dissipation (t a = +70 n c)(note 2) pdip (derate 16.7mw/ n c above +70 n c) ................ 1333.3mw plcc (derate 13.3mw/ n c above +70 n c)...............1066.7mw operating temperature range ............................. 0 n c to +70 n c storage temperature range ............................ -55 n c to +160 n c lead temperature (soldering, 10s) ................................ +300 n c soldering temperature (reflow) pdip ............................................................................. +260 n c plcc ........................................................................... +245 n c electrical characteristics (note 3) absolute maximum ratings 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. 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 table" along with the descriptive excerpts from the original manufacturer's data sheet have been included in this data sheet solely for comparative purposes. parameter conditions min typ max units zero input reading v in = 0v, full scale = 200.0mv -000.0 000.0 +000.0 digital reading ratiometric reading v in = v ref , v ref = 100mv 999 999/1000 1000 digital reading rollover error (difference in reading for equal positive and negative reading near full scale) -v in = +v in = 200.0mv -1 q 2 +1 counts linearity (maximum deviation from best straight line fit) full scale = 200mv or full scale = 2.000v -1 q 2 +1 counts common-mode rejection ratio (note 4) v cm = q 1v, v in = 0v, full scale = 200.0mv 50 f v/v noise (pk-pk value not exceeded95% of time) v in = 0v, full scale = 200mv 15 f v input leakage current v in = 0v 1 10 pa zero reading drift v in = 0v, 0 n c < t a < +70 n c 0.2 1 f v/ n c scale factor temperature coefficient v in = 199.0mv, 0 n c < t a < +70 n c (external reference 0ppm/ n c) 1 5 ppm/ n c v+ supply current (does not include led current for icl7107) v in = 0v 0.8 1.8 ma v- supply current (icl7107 only) 0.6 1.8 ma analog common voltage(with respect to positive supply) 25k i between common and positive supply 2.4 2.8 3.2 v temperature coefficient of analog common (with respect to positive supply) 25k i between common and positive supply 80 ppm/ n c downloaded from: http:///
3 maxim integrated 3 1 M 2 digit a/d converters icl7106/icl7107 electrical characteristics (continued)(note 3) note 3: unless otherwise noted, specifications apply to both the icl7106 and icl7107 at t a = +25 n c, f clock = 48khz. icl7106 is tested in the circuit of figure 1. icl7107 is tested in the circuit of figure 2. note 4: see the differential input section. note 5: backplane drive is in phase with segment drive for ?off? segment, 180 n out of phase for ?on? segment. frequency is 20 times the conversion rate. average dc component is less than 50mv. parameter conditions min typ max units icl7106 onlypk-pk segment drive voltage, pk-pk backplane drive voltage (note 5) v + to v - = 9v 4 5 6 v icl7107 onlysegment sinking current (except pin 19) v + = 5.0v, segment voltage = 3v 5 8.0 ma pin 19 o nly 10 16 downloaded from: http:///
4 maxim integrated 3 1 M 2 digit a/d converters icl7106/icl7107 maxim integrated 3 +2kv downloaded from: http:///
5 maxim integrated 3 1 M 2 digit a/d converters icl7106/icl7107 icl7106/7107 4 maxim integrated downloaded from: http:///
6 maxim integrated 3 1 M 2 digit a/d converters icl7106/icl7107 maxim integrated 5 downloaded from: http:///
7 maxim integrated 3 1 M 2 digit a/d converters icl7106/icl7107 icl7106/7107 6 maxim integrated downloaded from: http:///
8 maxim integrated 3 1 M 2 digit a/d converters icl7106/icl7107 maxim integrated 7 downloaded from: http:///
9 maxim integrated 3 1 M 2 digit a/d converters icl7106/icl7107 icl7106/7107 8 maxim integrated downloaded from: http:///
10 maxim integrated 3 1 M 2 digit a/d converters icl7106/icl7107 maxim integrated 9 downloaded from: http:///
11 maxim integrated 3 1 M 2 digit a/d converters icl7106/icl7107 icl7106/7107 10 maxim integrated downloaded from: http:///
12 maxim integrated 3 1 M 2 digit a/d converters icl7106/icl7107 maxim integrated 11 typical applications downloaded from: http:///
13 maxim integrated 3 1 M 2 digit a/d converters icl7106/icl7107 pin configurations (continued) chip information process: bicmos package information for the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages . note that a ?+?, ?#?, or ?-? in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing pertains to the package regardless of rohs status. package type package code document no. land pattern no. 40 pdip p40+1 21-0044 ? 44 plcc q44+1 21-0049 90-0236 icl7106/7107 12 maxim integrated plcc downloaded from: http:///
maxim integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim integrated product. no circuit patent licenses are implied. maxim integrated reserves the right to change the circuitry and specifications without notice at any time. the parametric values (min and max limits) shown in the electrical characteristics table are guaranteed. other parametric values quoted in this data sheet are provided for guidance. 14 maxim integrated 160 rio robles, san jose, ca 95134 usa 1-408-601-1000 ? 2012 maxim integrated products, inc. maxim integrated and the maxim integrated logo are trademarks of maxim integrated products, inc. 3 1 M 2 digit a/d converters icl7106/icl7107 revision history revision number revision date description pages changed 0 10/84 initial release ? 1 1/12 removed cerdip options. 1, 2, 4, 12 downloaded from: http:///

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