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austriamicrosystems ag is now ams ag the technical content of this austriamicrosystems datasheet is still valid. contact information: headquarters: ams ag tobelbaderstrasse 30 8141 unterpremstaetten, austria tel: +43 (0) 3136 500 0 e - mail: ams_sales @ams.com please visit our website at www.ams.com
as1970 - as1975 low-voltage single/dual/quad comparators data sheet www.austriamicrosystems.com revision 1.02 1 - 18 1 general description the as1970 - as1975 are single/dual/quad compara- tors that operate with suppli es from 2.5 to 5.5v making them perfect for all 3- and 5-volt applications. the com- parators can also operate with dual supplies (1.25 to 2.75v), and require very little supply current (down to 8.5a) with minimal propagation delay (300ns). low input bias current (1.0pa, typ), low input offset volt- age (0.5mv, typ), and internal hysteresis (3mv) make these comparators ideal for low-power single-cell appli- cations including power-management and power-moni- toring systems. the comparators are available as the standard products listed in ta b l e 1 . the as1970/as1972/as1974 pu sh/pull output can sink or source current. the as1971/as1973/as1975 open-drain output can be pulled beyond v cc to a maximum of 5.5v > v ee . these open-drain versions are ideal for logic-level translators or bipolar-to-unipolar converters. large internal output driv ers allow rail-to-rail output swings with loads of up to 8ma. the as1970/as1971 are available in a 5-pin sot23 package. the as1972/as1973 are available in a 8-pin msop package. the as1974/as1975 are available in a 14-pin tssop package. figure 1. block diagrams 2 key features cmos push/pull output sinks and sources 8ma (as1970/as1972/as1974) cmos open-drain output voltage extends beyond v cc (as1971/as1973/as1975) quiescent supply current: 8.5a per comparator internal hysteresis: 3mv 3v/5v logic-level translation single-supply operation: 2.5 to 5.5v common-mode input voltage range extends 250mv above the rails low propagation delay: 300ns minimized overall power consumption supply current @1mhz switching frequency: 80a no phase reversal for overdriven inputs package types: - 5-pin sot23 ? as1970/as1971 - 8-pin msop ? as1972/as1973 - 14-pin tssop ? as1974/as1975 3 applications the devices are ideal for battery-powered systems, mobile communication devices , zero-crossing detectors, window comparators, level translators, threshold detec- tors/discriminators, ground/s upply-sensing applications, ir receivers or any other space-limited application with low power-consumption requirements. table 1. standard products model output type as1970/as1972/as1974 push/pull as1971/as1973/as1975 open-drain ? + ? + ? + ? + outa ina+ ina- v ee v cc outd ind+ ind- outc inc+ inc- outb inb+ inb- as1974/as1975 as1972/as1973 v ee v cc ina+ ina- ? + outa inb+ inb- ? + outb v cc as1970/as1971 v ee in+ in- ? + out ams ag technical content still valid
www.austriamicrosystems.com revision 1.02 2 - 18 as1970 data sheet - pinout and packaging 4 pinout and packaging pin assignments figure 2. pin assignments (top view) pin descriptions table 2. pin descriptions pin number pin name description see figure 2 in- comparator inverting input in+ comparator non-inverting input ina- comparator a inverting input ina+ comparator a non-inverting input inb- comparator b inverting input inb+ comparator b non-inverting input inc- comparator c inverting input inc+ comparator c non-inverting input ind- comparator d inverting input ind+ comparator d non-inverting input out comparator output outa comparator a output outb comparator b output outc comparator c output outd comparator d output v cc positive supply voltage v ee negative supply voltage 5 inb+ 7 outb 6 inb- 8 v cc 4 in- 5 v ee 1 out 2 v cc 3 in+ 5-pin sot23 as1972/ as1973 8-pin msop as1970/ as1971 as1974/ as1975 14-pin tssop 4 v ee 3 ina+ 2 ina- 1 outa 7 outb 6 inb- 5 inb+ 4 v cc 3 ina+ 2 ina- 1 outa 8 outc 9 inc- 10 inc+ 11 v ee 12 ind+ 13 ind- 14 outd ams ag technical content still valid
www.austriamicrosystems.com revision 1.02 3 - 18 as1970 data sheet - absolute maximum ratings 5 absolute maximum ratings stresses beyond those listed in table 3 may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other cond itions beyond those indicated in section 6 electrical characteristics on page 4 is not implied. exposure to absolute maxi mum rating conditions for extended periods may affect device reliability. table 3. absolute maximum ratings parameter min max units comments supply voltage v cc to v ee 7v in x+ , in x - to v ee -0.3 v cc + 0.3 v out x to v ee as1970/as1972/as1974 -0.3 v cc + 0.3 v as1971/as1973/as1975 -0.3 +7 v out x short-circuit duration to v ee or v cc 10 s continuous power dissipation (t amb = +70oc) 5-pin sot23 571 mw derate 7.1mw/oc above +70oc 8-pin msop 727 mw derate 9.1mw/oc above +70oc 14-pin tssop 727 mw derate 9.1mw/oc above +70oc operating temperat ure range -40 +85 oc junction temperature range +150 oc storage temperature range -65 +150 oc package body temperature 260 oc the reflow peak soldering temperature (body temperature) specified is in accordance with ipc/jedec j-std- 020c ?moisture/reflow sensitivity classification for non-hermetic solid state surface mount devices?. the lead finish for pb-free leaded packages is matte tin (100% sn). ams ag technical content still valid
www.austriamicrosystems.com revision 1.02 4 - 18 as1970 data sheet - electrical characteristics 6 electrical characteristics v cc = 2.7 to 5.5v, v ee = 0v, v cm = 0v, t amb = -40 to +85oc (unless otherwise specified). typ values are at t amb = +25oc. table 4. electrical characteristics symbol parameter conditions min typ max units v cc supply voltage inferred from psrr test 2.5 5.5 v i dd supply current v cc = 5v, no load, as1974/as1975 36 64 a v cc = 5v, no load, as1972/as1973 18 32 v cc = 5v, no load, as1970, as1971 11 19 v cc = 2.7v, no load, as1974/as1975 34 60 v cc = 2.7v, no load, as1972/as1973 17 30 v cc = 2.7v, no load, as1970, as1971 10 18 psrr power-supply rejection ratio 2.5v v cc 5.5v, t amb = +25oc 55 80 db v cmr common-mode voltage range 1 t amb = +25oc v ee - 0.25 v cc + 0.25 v t amb = -40 to +85oc v ee v cc v os input offset voltage 2 full common-mode range, t amb = +25oc 0.5 6 mv full common-mode range, t amb = -40 to +85oc 8 v hys input hysteresis 3 mv i b input bias current 3, 4 0.001 10 na i os input offset current 0.5 pa c in input capacitance 3.5 pf cmrr common-mode rejection ratio t amb = +25oc 52 80 db i leak output leakage current as1971/as1973/as1975 only 1.0 a i sc output short-circuit current sourcing or sinking, v out = v ee or v cc , v cc = 5v 60 ma sourcing or sinking, v out = v ee or v cc , v cc = 2.7v 18 v ol out x output voltage low v cc = 5v, i sink = 8ma, t amb = +25oc 0.2 0.4 v v cc = 5v, i sink = 8ma, t amb = -40 to +85oc 0.55 v cc = 2.7v, i sink = 3.5ma, t amb = +25oc 0.15 0.3 v cc = 2.7v, i sink = 3.5ma, t amb = -40 to +85oc 0.4 v oh out x output voltage high (as1970/as1972/as1974 only) v cc = 5v, i sink = 8ma, t amb = +25oc 4.6 4.85 v v cc = 5v, i sink = 8ma, t amb = -40 to +85oc 4.45 v cc = 2.7v, i sink = 3.5ma, t amb = +25oc 2.4 2.55 v cc = 2.7v, i sink = 3.5ma, t amb = -40 to +85oc 2.3 ams ag technical content still valid
www.austriamicrosystems.com revision 1.02 5 - 18 as1970 data sheet - electrical characteristics t rise out x rise time (as1970/as1972/as1974 only) v cc = 5v, c load = 15pf 32 ns v cc = 5v, c load = 50pf 50 v cc = 5v, c load = 200pf 80 t fall out x fall time v cc = 5v, c load = 15pf 22 ns v cc = 5v, c load = 50pf 32 v cc = 5v, c load = 200pf 60 t pd- propagation delay as1970/as1972/as1974 only, c load = 15pf, 10mv overdrive 400 ns as1970/as1972/as1974 only, c load = 15pf, 100mv overdrive 300 as1971/as1973/as1975 only, c load = 15pf, r pullup = 5.1k , 10mv overdrive 400 as1971/as1973/as1975 only, c load = 15pf, r pullup = 5.1k , 100mv overdrive 300 t pd+ as1970/as1972/as1974 only, c load = 15pf, 10mv overdrive 420 as1970/as1972/as1974 only, c load = 15pf, 100mv overdrive 270 t pu power-up time 20 s 1. inferred from the v os test. both or either inputs can be driven 0. 3v beyond either supply rail without output phase reversal. 2. v os is defined as the center of the hysteresis band at the input. 3. i b is defined as the average of the two input bias currents (i b- , i b+ ). 4. guaranteed by design. table 4. electrical characteristics (continued) symbol parameter conditions min typ max units ams ag technical content still valid
www.austriamicrosystems.com revision 1.02 6 - 18 as1970 data sheet - typical operating characteristics 7 typical operating characteristics figure 3. supply current vs. temperature figure 4. supply current vs. output transition (per comparator) frequency (per comparator) figure 5. v ol vs. i sink ; v in+ < v in- figure 6. v oh vs. i source ; v in+ > v in- figure 7. i sink vs. temperature figure 8. v os vs. temperature 1 10 100 1000 0.1 1 10 100 1000 output transition frequency (khz) supply current (a) e 6 8 10 12 14 16 18 -60 -40 -20 0 20 40 60 80 100 temp (c) supply current (a) e v cc = 5v v cc = 3v v cc = 5v v cc = 2.7v 0.1 1 10 100 1000 0.01 0.1 1 10 100 output sink current (ma) output low voltage (mv) e 0.1 1 10 100 1000 0.01 0.1 1 10 100 output source current (ma) output high voltage (mv) e v cc = 5v v cc = 2.7v v cc = 5v v cc = 2.7v 0 10 20 30 40 50 60 70 80 90 100 -60 -40 -20 0 20 40 60 80 100 temperature (c) output sink current (ma) e 2.00 2.10 2.20 2.30 2.40 2.50 2.60 2.70 2.80 2.90 3.00 -60 -40 -20 0 20 40 60 80 100 temperature (c) offset voltage (mv) ] v cc = 5v v cc = 2.7v ams ag technical content still valid
www.austriamicrosystems.com revision 1.02 7 - 18 as1970 data sheet - typical operating characteristics figure 9. t pd+ vs. c load ; v cc = 3v, v od = 50mv figure 10. t pd+ vs. c load ; v cc = 5v, v od = 50mv figure 11. t pd+ vs. temperature; v od = 50mv figure 12. t pd+ vs. v od figure 13. 1mhz response; v od = 50mv figure 14. power-up delay; v od = 50mv 200 250 300 350 400 450 0 200 400 600 800 1000 capacitive load (pf) propagation delay t pd+ (ns) ] 250 300 350 400 450 500 550 0 200 400 600 800 1000 capacitive load (pf) propagation delay t pd+ (ns) ] to v out = 50% of final value to v out = 10% of final value to v out = 50% of final value to v out = 10% of final value 200 300 400 500 600 0 40 80 120 160 200 input overdrive (mv) propagation delay t pd+ (ns) ] 240 250 260 270 280 290 -40 -20 0 20 40 60 80 100 temperature (c) propagation delay t pd+ (ns) ] to v out = 50% of final value to v out = 10% of final value v cc = 5v v cc = 2.7v out 400ns/div 50mv/div 2v/div in+ out 2v/div 2v/div v cc 4s/div ams ag technical content still valid
www.austriamicrosystems.com revision 1.02 8 - 18 as1970 data sheet - typical operating characteristics figure 15. t pd+ ; v od = 50mv figure 16. t pd- ; v od = 50mv 100ns/div 100ns/div out 50mv/div 2v/div in+ out 50mv/div 2v/div in+ ams ag technical content still valid
www.austriamicrosystems.com revision 1.02 9 - 18 as1970 data sheet - detailed description 8 detailed description the as1970 - as1975 are single/dual/quad low-power, comparat ors. the devices operate with a supply voltage range between 2.5 and 5.5v while consuming down to 8.5a per comparator. their common-mode input voltage range extends 0.25v beyond each rail. internal hysteresis ensures clean output s witching, even with slow input signals. large internal output drivers allow rail- to-rail output swing with up to 8ma loads. the output stage design minimizes supply-current surges whil e switching, virtually eliminating the power supply tran- sients typical. the as1970/as1972/as1974 push/pull output stage sinks and sources current, wheras the as1971/ as1973/as1975 open-drain output stage can be pulled beyond v cc to an absolute ma ximum of 5.5v > v ee . input stage the input common-mode voltage range extends from -0.25v to (v cc + 0.25v), and the comp arators can operate at any differential input voltage within this voltage range. input bias (i b ) current is 1.0pa (typ) if the input voltage is within the common-mode voltage range. inputs are protected from over -voltage by internal esd protection diodes co nnected to the supply rails. as the input voltage exceeds the supply rails, these diodes become fo rward biased and begin to conduct and the bias currents increase exponentially as the input voltage exceeds the supply rails. output stage the push/pull and open-drain output stages were designed to provide rail-to-rail operation with up to 8ma loads. even at loads of up to 8ma, the supply-current change during an output transition is extremely small (see figure 4 on page 6) . figure 4 shows the minimal supply-current increase as the output switching frequency approaches 1mhz. this characteristic eliminates the need for power-supply filter capa citors to reduce glitches cr eated by comparator switching currents. because of the unique design of its output stage, the as 1970 - as1975 can dramatically increase battery life, even in high-speed applications. ams ag technical content still valid
www.austriamicrosystems.co m revision 1.02 10 - 18 as1970 data sheet - application information 9 application information figure 17 shows a typical application circuit for the as1970 - as1975 comparators. figure 17. typical application diagram ? threshold detector hysteresis (as 1970/as1972/as1974) the as1970/as1972/as1974 have 3mv internal hysteresis. additional h ysteresis can be generated with three resis- tors using positive feedback ( figure 18 ), however this method also slows hysteresis response time. figure 18. additional hyst eresis as1970/as1972/as1974 resistor selection example for the circuit shown in figure 18 , the following steps can be used to calculate values for r 1 , r 2 , and r 3. 1. select r 3 first. the current through r 3 should be at least 1a to minimize errors caused by leakage current. the current through r 3 at the trip point is: (v ref - v out )/r 3 (eq 1) the two possible output states in solving for r 3 yields these two formulas: r 3 = v ref /1a (eq 2) r 3 = (v ref - v cc )/1a (eq 3) for example, for v ref = 1.2v and v cc = 5v, the two r 3 resistor values are 1.2m " and 3.8m " . use the smaller of the two resulting resistor values; in this case a standard 1.2m " resistor should be used for r 3 . 2. choose the hysteresis band (v hb ). for this example, use v hb = 50mv. 3. calculate r 1 according to the following equation: r 1 = r 3 (v hb /v cc )( e q 4 ) substituting the example values for r 3 and v hb gives: r 1 = 1.2m " (50mv/5v) = 12k " as1970 - as1975 r pullup ? ? as1971/as1973/as1975 only v in 4 in- 1 out 2 v cc 5 v ee 3 in+ out r 1 r 3 v cc v in v ref r 2 + v ee v cc ? ams ag technical content still valid
www.austriamicrosystems.co m revision 1.02 11 - 18 as1970 data sheet - application information 4. choose the trip point for v in rising (v thr ) (see page 12) . this is the threshold voltage at which the as1970 - as1975 switches its output from low to high as v in rises above the trip point. for this example, choose v thr = 3v. 5. calculate r 2 as: r 2 = 1/[v thr /(v ref x r 1 ) - (1/r 1 ) - (1/r 3 )] (eq 5) substituting the example values gives: r 2 = 1/[3.0v/(1.2v x 12k ) - (1/12k ) - (1/1.2m )] = 8.05k in this example, a standard 8.2k resistor should be used for r 2 . 6. verify the trip voltages and hysteresis as: v thr = v ref x r 1 [(1/r 1 ) + (1/r 2 ) + (1/r 3 )] (eq 6) v thf = v thr - (r 1 x v cc /r 3 )( e q 7 ) hysteresis = v thr - v thf (eq 8) hysteresis (as 1971/as1973/as1975) the as1971/as1973/as1975 have 3mv internal hysteresis. thei r open-drain outputs require an external pullup resis- tor ( figure 19 ), and additional hysteresis can be generated using positive feedback. figure 19. additional hyst eresis as1971/as1973/as1975 resistor selection example for the circuit shown in figure 19 , the following steps can be used to calculate values for r 1 , r 2 , r 3 , and r 4 : 1. select r 3 according to one of: r 3 = v ref /500a (eq 9) r 3 = (v ref - v cc )/500a - r 4 (eq 10) use the smaller of the two resulting resistor values. 2. choose the hyster esis band required (v hb ). for this example, use 50mv. 3. calculate r 1 as: r 1 = (r 3 + r 4 )(v hb /v cc )( e q 1 1 ) 4. choose the trip point for v in rising (v thr ) (see page 12) . this is the threshold voltage at which the comparator switches its output from low to high as v in rises above the trip point. 5. calculate r 2 as: r 2 = 1/[v thr /(v ref x r 1 ) - (1/r 1 ) - 1/(r 3 + r 4 )] (eq 12) 6. verify the trip voltages and hysteresis as follows: v in rising: v thr = v ref x r 1 x [1/r 1 + 1/r 2 + 1/(r 3 + r 4 )] (eq 13) v in falling: v thf = v ref x r 1 x [1/r 1 + 1/r 2 + 1/(r 3 +r 4 )] - 1/(r 3 +r 4 ) x v cc (eq 14) hysteresis = v thr - v thf (eq 15) + r 3 v ee v cc ? v cc r 2 r 4 r 1 v ref v in out ams ag technical content still valid
www.austriamicrosystems.co m revision 1.02 12 - 18 as1970 data sheet - application information hysteresis band internal hysteresis creates two trip points (shown in figure 20 ): rising input voltage (v thr ) and falling input voltage (v thf ). the area between the trip points is the hysteresis band (v hb ). when the comparator input voltages are equiva- lent, the hysteresis effectively causes o ne comparator input to move quickly past the other, thus taking the input out of the region where oscillation occurs. in figure 20 ref has a fixed voltage applied and in+ is varied. if the inputs are reversed the output will be inverted. figure 20. threshold hysteresis band zero-crossing detector figure 21 shows the as1970 in a zero-crossing detector circuit. the inverting input is conn ected to ground, and the non-inverting input is connected to a 100mvp-p signal source . as the signal at the non-inverting input crosses 0v, the signal at out changes states. figure 21. zero-crossing detector logic level translator the comparators can be used as a 5v /3v logic translator as shown in figure 22 . the circuit in figure 22 converts 5v- to 3v-logic levels, and provides the full 5v logic-swing wit hout creating overvoltage on the 3v logic inputs. when the comparator is powered by a 5v supply, r pullup for the open-drain output should be connected to the +3v supply volt- age. for 3v-to-5v logic-level translations, connect the +3v supply voltage to v cc and the +5v supply voltage to r pullup . figure 22. logic level translator in+ out v thr v thf ref thresholds hysteresis band v hb 5 v ee 1 out 100mvp-p as1970 4 in- 3 in+ 2 v cc ? + ? + as1971 r pullup +5/+3v logic out +3/+5v +5/+3v logic in 100k 100k +3/+5v 4 in- 5 v ee 3 in+ 1 out 2 v cc ? + ? + ams ag technical content still valid
www.austriamicrosystems.co m revision 1.02 13 - 18 as1970 data sheet - application information layout considerations the as1970 - as1975 requires proper layout and design techniques for optimum performance. power-supply bypass capacitors are not typically needed, although 100nf bypass capacitors should be used when supply impedance is high, when supply leads are long, or when excessive noise is expected on the supply lines. minimize signal trace lengths to reduce stray capacitance. a ground plane and surface-mount components are recommended. ams ag technical content still valid
www.austriamicrosystems.co m revision 1.02 14 - 18 as1970 data sheet - package drawings and markings 10 package drawings and markings the as1970 - as1975 are available in a 5-pi n sot23 package and an 8-pin msop package. figure 23. 5-pin sot23 package notes: 1. controlling dimension is millimeters. 2. foot length measured at intercept point between datum a and lead surface. 3. package outline exclusive of mold flash and metal burr. 4. package outline inclusive of solder plating. 5. meets jedec mo178 . symbol min max a0.901.45 a1 0.00 0.15 a2 0.90 1.30 b0.300.50 c0.090.20 d2.803.05 e2.603.00 e1 1.50 1.75 l0.300.55 e0 . 9 5 r e f e1 1.90 ref 0o 8o ams ag technical content still valid
www.austriamicrosystems.co m revision 1.02 15 - 18 as1970 data sheet - package drawings and markings figure 24. 8-pin msop package notes: 1. all dimensions are in millimeters and a ll angles in degrees (unless otherwise noted). 2. datums b and c to be determined at datum plane h. 3. dimensions d and e1 are to be determined at datum plane h. 4. dimensions d2 and e2 are for the top package; dimensions d and e1 are for the bottom package. 5. cross section a-a to be determined at 0.13 to 0.25mm from the leadtip. 6. dimensions d and d2 do not include mold flash, protrusion, or gate burrs. 7. dimensions e1 and e2 do not in clude interlead flash or protrusion. symbol typ tol symbol typ tol a 1.10 max b 0.33 +0.07/-0.08 a1 0.10 0.05 b1 0.30 0.05 a2 0.86 0.08 c 0.18 0.05 d 3.00 0.10 c1 0.15 +0.03/-0.02 d2 2.95 0.10 1 3.0o 3.0o e 4.90 0.15 2 12.0o 3.0o e1 3.00 0.10 3 12.0o 3.0o e2 2.95 0.10 l 0.55 0.15 e3 0.51 0.13 l1 0.95 bsc ? e4 0.51 0.13 aaa 0.10 ? r 0.15 +0.15/-0.08 bbb 0.08 ? r1 0.15 +0.15/-0.08 ccc 0.25 ? t1 0.31 0.08 e 0.65 bsc ? t2 0.41 0.08 s 0.525 bsc ? ams ag technical content still valid
www.austriamicrosystems.co m revision 1.02 16 - 18 as1970 data sheet - package drawings and markings figure 25. 14-pin tssop package notes: 1. all dimensions are in millimeters; angles in degrees. 2. dimensions and tolerancing per asme y14.5m-1994 . 3. dimension d does not include mold flas h, protrusions, or gate burrs. mold flas h, protrusions, or gate burrs shall not exceed 0.15mm per side. 4. dimension e1 does not include interlead flash or prot rusion. interlead flash or protrusion shall not exceed 0.25mm per side. 5. dimension b does not include dambar protrusion. allowa ble dambar protrusion shall be 0.08mm total in excess of dimension b at maximum material condition. dambar cannot be located on the lower radius of the foot. minimum space between protrusion and adjacent lead is 0.07mm for 0.5mm pitch packages. 6. terminal numbers shown are for reference only. 7. datums a and b to be determined at datum plane h. 8. dimensions d and e1 to be determined at datum plane h. 9. this dimension applies only to variations with an even number of leads per side. for variations with an odd number of leads per package, the center lead must be coincident with the package centerline, datum a. 10. cross section a-a to be determine d at 0.10 to 0.25mm from the leadtip. symbol 0.65mm lead pitch 1, 2 note symbol 0.65mm lead pitch 1, 2 note min nom max min nom max a- -1.10 10o - 8o a1 0.05 - 0.15 l1 1.0 ref a2 0.85 0.90 0.95 aaa 0.10 l 0.50 0.60 0.75 bbb 0.10 r 0.09 - - ccc 0.05 r1 0.09 - - ddd 0.20 b 0.19 - 0.30 5 e 0.65 bsc b1 0.19 0.22 0.25 21 2 o r e f c 0.09 - 0.20 31 2 o r e f c1 0.09 - 0.16 variations d 4.90 5.00 5.10 3, 8 e 0.65 bsc e1 4.30 1.40 4.50 4, 8 n 14 6 e 6.4 bsc ams ag technical content still valid
www.austriamicrosystems.co m revision 1.02 17 - 18 as1970 data sheet - ordering information 11 ordering information the comparators are available as the standard products shown in ta b l e 5 . table 5. ordering information model marking description delivery form package as1970-t asi6 low-voltage single comparator, push/pull tape and reel 5-pin sot23 as1971-t asi7 low-voltage single comparator, open-drain tape and reel 5-pin sot23 as1972 989 low-voltage dual comparator, push/pull tubes 8-pin msop as1972-t 989 low-voltage dual comparator push/pull tape and reel 8-pin msop as1973 990 low-voltage dual comparator, open-drain tubes 8-pin msop as1973-t 990 low-voltage dual comparator, open-drain tape and reel 8-pin msop as1974 as1974 low-voltage quad comparator, push/pull tubes 14-pin tssop as1974-t as1974 low-voltage quad comparator, push/pull tape and reel 14-pin tssop as1975 as1975 low-voltage quad compar ator, open-drain tubes 14-pin tssop as1975-t as1975 low-voltage quad comparat or, open-drain tape and reel 14-pin tssop ams ag technical content still valid
www.austriamicrosystems.co m revision 1.02 18 - 18 as1970 data sheet copyrights copyright ? 1997-200 7, austriamicrosystems ag, schloss premstaett en, 8141 unterpremstae tten, austria-europe. trademarks registered ?. all rights reserved. the materi al herein may not be reproduced, adapted, merged, trans- lated, stored, or used witho ut the prior written consent of the copyright owner. all products and companies mentioned are trademarks or registered trademarks of their respective companies. disclaimer devices sold by austriamicrosystems ag are covered by t he warranty and patent indemni fication provisions appearing in its term of sale. austriamicrosystems ag makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. austriami- crosystems ag reserves the right to change specifications and prices at any ti me and without notice . therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems ag for current information. this product is intended for use in normal commercial a pplications. applications requiring extended temperature range, unusual environmental requirements, or high reliability app lications, such as military, medical life-support or life- sustaining equipment are specifically not recommended wit hout additional processing by austriamicrosystems ag for each application. for shipments of less than 100 parts the m anufacturing flow might show deviations from the standard production flow, such as test flow or test location. the information furnished here by austriamicrosystems ag is believed to be correct and accurate. however, austriamicrosystems ag shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or ar ising out of the furnishing, performance or use of the tech- nical data herein. no obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems ag rendering of technical or other services. contact information headquarters austriamicrosystems ag a-8141 schloss premstaetten, austria tel: +43 (0) 3136 500 0 fax: +43 (0) 3136 525 01 for sales offices, distributors a nd representatives, please visit: http://www.austriamicrosystems.com/contact ams ag technical content still valid

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