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this is information on a product in full production. december 2012 doc id 2470 rev 10 1/18 18 lm2903 low-power dual voltage comparator datasheet ? production data features wide single supply voltage range or dual supplies +2 v to +36 v or 1 v to 18 v very low supply current (0.4 ma) independent of supply voltage (1 mw/comparator at +5 v) low input bias current: 25 na typ. low input offset current: 5 na typ. input common-mode voltage range includes negative rail low output saturation voltage: 250 mv typ. (i o = 4 ma) differential input voltag e range equal to the supply voltage ttl, dtl, ecl, mos, cmos compatible outputs automotive qualification description this device consists of two independent low- power voltage comparators designed specifically to operate from a single supply over a wide range of voltages. operation from split power supplies is also possible. the device also has a unique characteristic in that the input common-mode voltage range includes the negative rail even though operated from a single power supply voltage. n dip8 (plastic package) d so-8 (plastic micropackage) p tssop8 (thin shrink small outline package) dfn8 2x2 mm (plastic micropackage) www.st.com
contents lm2903 2/18 doc id 2470 rev 10 contents 1 schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 package pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 absolute maximum ratings and operating conditions . . . . . . . . . . . . . 4 4 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5 typical application sc hematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6.1 dip8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6.2 so-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6.3 tssop8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.4 dfn8 2x2 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 7 ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 8 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
lm2903 schematic diagram doc id 2470 rev 10 3/18 1 schematic diagram figure 1. schematic diagram (1/2 lm2903) 2 package pin connections figure 2. pin connections for each package (top view) 3 .5 a 100 a 3 .5 a 100 a non-inverting inp u t inverting inp u t 6## ). /54 6## ). /54 ). ). dip8 / so-8 / tssop8 / dfn8
absolute maximum ratings and operating conditions lm2903 4/18 doc id 2470 rev 10 3 absolute maximum ratings and operating conditions table 1. absolute maximum ratings symbol parameter value unit v cc supply voltage 18 or 36 v v id differential input voltage 36 v in input voltage -0.3 to +36 output short-circuit to ground (1) 1. short-circuits from the output to v cc + can cause excessive heating a nd possible destruction. the maximum output current is approximately 20 ma, independent of the magnitude of v cc + . infinite r thja thermal resistance junction to ambient (2) dip8 so-8 tssop8 dfn8 2x2 mm 2. short-circuits can c ause excessive heating and destructive dissipation. val ues are typical. 85 125 120 57 c/w r thjc thermal resistance junction to case (2) dip8 so-8 tssop8 41 40 37 t j maximum junction temperature +150 c t stg storage temperature range -65 to +150 esd human body model (hbm) (3) 3. human body model: a 100 pf capacit or is charged to the specified voltage, then discharged through a 1.5 k resistor between two pins of the device. this is done for all couples of connected pin combinations while the other pins are floating. 800 v machine model (mm) (4) 4. machine model: a 200 pf capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 ). this is done for all couples of connected pin combinations whil e the other pins are floating. 200 cdm: charged device model (5) 5. charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. th is is done for all pins. 1.5 kv table 2. operating conditions symbol parameter value unit v icm common mode input voltage range t min t amb t max 0 to v cc + -1.5 0 to v cc + -2 v t oper operating free-air temper ature range -40 to +125 c
lm2903 electrical characteristics doc id 2470 rev 10 5/18 4 electrical characteristics table 3. v cc + = 5 v, v cc - = gnd, t amb = 25c (unless otherwise specified) symbol parameter min. typ. max. unit v io input offset voltage (1) t min t amb t max 17 15 mv i io input offset current t min t amb t max 550 150 na i ib input bias current (2) t min t amb t max 25 250 400 a vd large signal voltage gain v cc = 15 v, r l = 15 k , v o = 1 to 11 v 25 200 v/mv i cc supply current (all comparators) v cc = 5 v, no load v cc = 30 v, no load 0.4 1 1 2.5 ma v id differential input voltage (3) v cc + v v ol low level output voltage (v id = -1 v, i sink = 4 ma) t min t amb t max 250 400 700 mv i oh high level output current (v cc =v o = 30 v, v id = 1 v) t min t amb t max 0.1 1 na a i sink output sink current (v id = -1 v, v o = 1.5 v) 6 16 ma t res small signal response time (4) (r l = 5.1 k to v cc + )1.3s t rel large signal response time (5) ttl input (v ref = +1.4 v, r l = 5.1 k to v cc + ) output signal at 50 % of final value output signal at 95 % of final value 500 1 ns s 1. at output switch point, v o 1.4 v, r s = 0 with v cc + from 5 v to 30 v, and over the full input common-mode range (0 v to v cc + ?1.5 v). 2. the direction of the input current is out of the ic due to the pnp input stage. this current is essentially constant, independent of the state of the output, so no loading charge exists on the reference of input lines. 3. positive excursions of input voltage may exceed the power s upply level. as long as the other voltage remains within the common-mode range, the comparator provi des a proper output state. the low input voltage state must not be less than ?0.3 v (or 0.3 v below the negative power supply, if used). 4. the response time specified is for a 100 mv input step with 5 mv overdrive. 5. maximum values are guaranteed by design and evaluation.
electrical characteristics lm2903 6/18 doc id 2470 rev 10 figure 3. supply current vs. supply voltage f igure 4. input current vs. supply voltage figure 5. output saturation voltage vs. output current figure 6. response time for various input overdrives - negative transition figure 7. response time for various input overdrives - positive transition
lm2903 typical application schematics doc id 2470 rev 10 7/18 5 typical application schematics figure 8. basic comparator figure 9. driving cmos v cc = 5 v 15 k v o +v (ref) 1/2 lm290 3 -v (ref) 5 v 100 k & 1/ 2 lm290 3 +v (ref) -v (ref) figure 10. driving ttl figure 11. low frequency op-amp 5 v 10 k +v (ref) & & 1/ 2 lm290 3 -v (ref) 5 v 15 k e o 0.5 f 100 k e l 1 k ~ 1/2 lm290 3 a v = 100 figure 12. low frequency op-amp with boost figure 13. transducer amplifier 5 v 15 k 0.5 f 100 k 1 k ~ 2n 2222 (e o = 0 v for e l = 0 v) 1/ 2 lm290 3 e o e l a v = 100 5 v 10 k e o 20 m 3 k m a gnetic pick- u p 10 k 1/ 2 lm290 3
typical application schematics lm2903 8/18 doc id 2470 rev 10 figure 14. low frequency op- amp with offset adjust figure 15. zero crossing detector (single power supply) e l ~ 2n 2222 5 v e o r1 100 k 1 k 5 v 1 m 100 k 1 m off s et a dj us t r s r 1 15 k 0.5 f r 2 1/ 2 lm290 3 100 k 10 k e l 20 m 5 v 1n414 8 5.1 k 5.1 k 100 k 1/ 2 lm290 3 5.1 k 10 k e i ~ r s 2r s v (ref) high v (ref) low 2n 2222 v cc l a mp 1/ 2 lm290 3 1/2 lm290 3 2r s (12 v) 15 v 5.1 k e o e i ~ 15 v 1/2 lm290 3 figure 18. crystal controlled oscillator figure 19. comparator with a negative reference 2 k 200 k e o v cc 0 100 k 200 k 1/2 lm290 3 0.1 f f = 100 khz v cc = 15 v 15 v 5.1 k e o e i ~ 15 v 5 v 1/2 lm290 3
lm2903 typical application schematics doc id 2470 rev 10 9/18 figure 20. time delay generator figure 21. two-decade high-frequency vco v cc 0 v (ref.) 10 k 1/2 15 k 200 k 3 k 3 k 3 k 10 m v o2 v 0 3 o1 v 51 k v 1 v 2 0.001 f v c1 v 3 v cc v c1 v 1 v 2 v 3 0 0 1 t t 3 t 4 t 2 t t v cc t 0 t 1 v cc v cc v c c =+15v 1/2 lm290 3 1/2 1 / 2 10 k 10 k 10 k 10 k 10 m 10 m 51 k 51 k t 2 t o t 3 t o t a t o inp u t g a ting s ign a l lm290 3 lm290 3 lm290 3 v cc v cc 100 k 3 k 5.1 k /2 v cc /2 0.01 f 500 pf 100 k 0.1 f 20 k 50 k =+ 3 0v +250 mv v control +50 v 700 hz f 100 khz o 20 k 3 k 1/ 2 lm290 3 1/ 2 lm290 3 1/ 2 lm290 3 output 1 output 2 v cc v cc fre qu ency control volt a ge inp u t vcontrol 10 k
package information lm2903 10/18 doc id 2470 rev 10 6 package information in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack ? specifications, grade definitions and product status are available at: www.st.com . ecopack ? is an st trademark.
lm2903 package information doc id 2470 rev 10 11/18 6.1 dip8 package information figure 22. dip8 package mechanical drawing table 4. dip8 package mechanical data ref. dimensions millimeters inches min. typ. max. min. typ. max. a5.330.210 a1 0.38 0.015 a2 2.92 3.30 4.95 0.115 0.130 0.195 b 0.36 0.46 0.56 0.014 0.018 0.022 b2 1.14 1.52 1.78 0.045 0.060 0.070 c 0.20 0.25 0.36 0.008 0.010 0.014 d 9.02 9.27 10.16 0.355 0.365 0.400 e 7.62 7.87 8.26 0.300 0.310 0.325 e1 6.10 6.35 7.11 0.240 0.250 0.280 e 2.54 0.100 ea 7.62 0.300 eb 10.92 0.430 l 2.92 3.30 3.81 0.115 0.130 0.150
package information lm2903 12/18 doc id 2470 rev 10 6.2 so-8 package information figure 23. so-8 package mechanical drawing table 5. so-8 package mechanical data ref. dimensions millimeters inches min. typ. max. min. typ. max. a1.750.069 a1 0.10 0.25 0.004 0.010 a2 1.25 0.049 b 0.28 0.48 0.011 0.019 c 0.17 0.23 0.007 0.010 d 4.80 4.90 5.00 0.189 0.193 0.197 e 5.80 6.00 6.20 0.228 0.236 0.244 e1 3.80 3.90 4.00 0.150 0.154 0.157 e 1.27 0.050 h 0.25 0.50 0.010 0.020 l 0.40 1.27 0.016 0.050 l1 1.04 0.040 k1 81 8 ccc 0.10 0.004
lm2903 package information doc id 2470 rev 10 13/18 6.3 tssop8 package information figure 24. tssop8 package mechanical drawing table 6. tssop8 package mechanical data ref. dimensions millimeters inches min. typ. max. min. typ. max. a1.200.047 a1 0.05 0.15 0.002 0.006 a2 0.80 1.00 1.05 0.031 0.039 0.041 b 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.008 d 2.90 3.00 3.10 0.114 0.118 0.122 e 6.20 6.40 6.60 0.244 0.252 0.260 e1 4.30 4.40 4.50 0.169 0.173 0.177 e 0.65 0.0256 k0 80 8 l 0.45 0.60 0.75 0.018 0.024 0.030 l1 1 0.039 aaa 0.10 0.004
package information lm2903 14/18 doc id 2470 rev 10 6.4 dfn8 2x2 package mechanical data figure 25. dfn8 2x2 package mechanical drawing table 7. dfn8 2x2x0.6 mm package mechanical data (pitch 0.5 mm) ref. dimensions millimeters inches min. typ. max. min. typ. max. a 0.51 0.55 0.60 0.020 0.022 0.024 a1 0.05 0.002 a3 0.15 0.006 b 0.18 0.25 0.30 0.007 0.010 0.012 d 1.85 2.00 2.15 0.073 0.079 0.085 d2 1.45 1.60 1.70 0.057 0.063 0.067 e 1.85 2.00 2.15 0.073 0.079 0.085 e2 0.75 0.90 1.00 0.030 0.035 0.039 e 0.50 0.020 l0.500.020 ddd 0.08 0.003 !-3?6
lm2903 package information doc id 2470 rev 10 15/18 figure 26. dfn8 2x2 footprint recommendation !-3?6 mm mm mm mm mm mm
ordering information lm2903 16/18 doc id 2470 rev 10 7 ordering information table 8. order codes order code temperature range package packing marking lm2903n -40c to +125c dip8 tube lm2903n lm2903d/dt so-8 tube or tape & reel 2903 lm2903ydt (1) 1. qualified and characterized according to aec q100 and q003 or equiva lent, advanced screening according to aec q001 & q 002 or equivalent. so-8 (automotive grade) tape & reel 2903y lm2903pt tssop8 2903 lm2903ypt (2) 2. qualification and characterizati on according to aec q100 and q003 or equivalent, advanced screening according to aec q001 & q 002 or equivalent are on-going. tssop8 (automotive grade) 2903y LM2903Q2T dfn8 2x2mm k1z
lm2903 revision history doc id 2470 rev 10 17/18 8 revision history table 9. document revision history date revision changes 15-jun-2003 1 initial release. 2-may-2005 2 ppap references inserted in the datasheet see table order code p1. 8-aug-2005 3 electrical characteristics table corrected (see table 3 on page 5 ). pin connections diagram moved to cover page. lead-free package information added. 27-oct-2005 4 ppap part number added in table 8: order codes . 11-may-2007 5 esd tolerance added in table 1: absolute maximum ratings on page 4 . 17-jan-2008 6 added r thja and r thjc , and esd cdm parameters in table 1: absolute maximum ratings . removed v icm from electrical characteristics in ta b l e 3 . reformatted package information in section 6 . added footnotes for automotive grade parts in table 8: order codes . 21-feb-2008 7 corrected so-8 package mechanica l data. dimension e in drawing was marked h in table. corrected revision history (revision 6 is of january 2008, not january 2007). 03-dec-2009 8 added pin description on cover page. 16-feb-2012 9 removed lm2903yd order code from ta b l e 8 . 05-dec-2012 10 added the dfn8 package small modifications to figure 2 and ta bl e 1 .
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