?2012 fairchild semiconductor corporation www.fairchildsemi.com rev. 2.0.2 features ? single supply operation: 2v to 36v ? dual supply operation: ? 1v to ? 18v ? allow comparison of voltages near ground potential ?low curren t drain 800 ? a typ. ? compatible with all forms of logic ? low input bias current 25na typ. ? low input offset current ? 5na typ. ? low offset voltage ? 1mv typ. description the lm2903, lm393/lm393a, lm293a consist of two independent voltage comparators designed to operate from a single power supply over a wide voltage range. 8-dip 8-soic 1 1 internal block diagram - + + - 1 2 3 45 6 7 8 v cc output2 in2 (-) in2 (+) output1 in1 (-) in1 (+) gnd lm2903,lm393/lm393a,lm293a dual differential comparator
lm2903,lm393/lm393a,lm293a 2 schematic diagram absolute maximum ratings thermal data parameter symbol value unit power supply voltage v cc ? 18 or 36 v differential in put voltage v i(diff) 36 v input voltage v i -0.3 to +36 v output short circuit to gnd - continuous - power dissipation, t a = 25 ? c 8-dip 8-soic p d 1040 480 mw operating temperature lm393/lm393a lm2903 lm293a t opr 0 ~ +70 -40 ~ +105 -25 ~ +85 ? c storage temperature t stg -65 ~ +150 ? c parameter symbol value unit thermal resistance junction-ambient max. 8-dip 8-soic r ? ja 120 260 ? c/w q1 q2 q3 q4 q5 q6 q7 q8 q9 output v cc q12 q13 q14 d1 d2 d3 d4 d5 d6 r1 r2 in (-) gnd in (+)
lm2903,lm393/lm393a,lm293a 3 electrical characteristics (v cc = 5v, t a = 25 ? c, unless otherwise specified) note1 lm393/lm393a: 0 ?? t a ?? +70 ? c lm2903: -40 ? t a ??? +105 ? c lm293a : -25 ?? t a ? +85 ? c parameter symbol conditions lm293a/lm393a lm393 unit min. typ. max. min. typ. max. input offset voltage v io v o(p) =1.4v, r s = 0 ? - ? 1 ? 2- ? 1 ? 5 mv v cm = 0 to 1.5v note1 - - ? 4.0 - - ? 9.0 input offset current i io - ? 5 ? 50 - ? 5 ? 50 na note1 - - ? 150 - - ? 150 input bias current i bias -65250-65250 na note1 - - 400 - - 400 input common mode voltage range v i(r) 0- v cc -1.5 0- v cc -1.5 v note1 0 - v cc -2 0 - v cc -2 supply current i cc r l = ???? v cc = 5v - 0.6 1 - 0.6 1 ma r l = ? , v cc = 30v - 0.8 2.5 - 0.8 2.5 voltage gain g v v cc =15v, r l ?? 15k ? (for large v o(p-p)swing ) 50 200 - 50 200 - v/mv large signal response time t lres v i =ttl logic swing v ref =1.4v, v rl = 5v, r l = 5.1k ? - 350 - - 350 - ns response time t res v rl =5v, r l =5.1k ? -1.4- -1.4- ? s output sink current i sink v i(-) ?? 1v, v i(+) =0v, v o(p) ? 1.5v 618- 618-ma output saturation voltage v sat v i(-) ?? 1v, vi(+) = 0v - 160 400 - 160 400 mv i sink = 4ma note1 - - 700 - - 700 output leakage current i o(lkg) v i(-) = 0v, v i(+) = 1v v o(p) = 5v - 0.1 - - 0.1 - na v o(p) = 30v - - 1.0 - - 1.0 ? a
lm2903,lm393/lm393a,lm293a 4 electrical characteristics (continued) (v cc = 5v, t a = 25 ? c, unless otherwise specified) note1 lm393/lm393a: 0 ?? t a ?? +70 ? c lm2903: -40 ?? t a ? +105 ? c lm293a : -25 ?? t a ? +85 ? c parameter symbol conditions lm2903 unit min. typ. max. input offset voltage v io v o(p) =1.4v, r s = 0 ? - ? 1 ? 7 mv v cm = 0 to 1.5v note1 - ? 9 ? 15 input offset current i io - ? 5 ? 50 na note1 - ? 50 ? 200 input bias current i bias -65250 na note1 - - 500 input common mode voltage range v i(r) 0- v cc -1.5 v note1 0 - v cc -2 supply current i cc r l = ? , v cc = 5v - 0.6 1 ma r l = ? , v cc = 30v - 1 2.5 voltage gain g v v cc =15v, r l ? 15k ?? (for large v o(p-p)swing ) 25 100 - v/mv large signal response time t lres v i =ttl logic swing v ref =1.4v, v rl = 5v, r l = 5.1k ? - 350 - ns response time t res v rl = 5v, r l = 5.1k ? -1.5- ? s output sink current i sink v i(-) ?? 1v, v i(+) = 0v, v o(p) ?? 1.5v 6 16 - ma output saturation voltage v sat v i(-) ?? 1v, vi(+) = 0v - 160 400 mv i sink = 4ma note1 - - 700 output leakage current i o(lkg) v i(-) = 0v, v o(p) = 5v - 0.1 - na v i(+) = 1v v o(p) = 30v - - 1.0 ? a
lm2903,lm393/lm393a,lm293a 5 typical performan ce characteristics figure 1. supply current vs supply voltage figure 2. input current vs supply voltage figure 3. output saturation voltage vs sink current figure 4. response time for various input overdrive-negative transition figure 5. response time for various input overdrive-positive transition
lm2903,lm393/lm393a,lm293a 6 mechanical dimensions package dimensions in millimeters c 7 typ 7 typ .430 max [10.92] b a .400 .373 [ 10.15 9.46 ] .250.005 [6.350.13] .036 [0.9 typ] .070 .045 [ 1.78 1.14 ] .100 [2.54] .300 [7.62] .060 max [1.52] .310.010 [7.870.25] .130.005 [3.30.13] .210 max [5.33] .140 .125 [ 3.55 3.17 ] .015 min [0.38] .021 .015 [ 0.53 0.37 ] .010 +.005 -.000 [ 0.254 +0.127 -0.000 ] pin #1 pin #1 (.032) [r0.813] (.092) [?2.337] top view option 1 top view option 2 .001[.025] c n08erevg c. does not include mold flash or protrusions. dambar protrusions shall not exceed d. does not include dambar protrusions. b. controling dimensions are in inches a. conforms to jedec registration ms-001, mold flash or protrusions shall not exceed variations ba e. dimensioning and tolerancing notes: reference dimensions are in millimeters .010 inches or 0.25mm. .010 inches or 0.25mm. per asme y14.5m-1994. 8-dip
lm2903,lm393/lm393a,lm293a 7 mechanical dimensions (continued) package dimensions in millimeters 8-soic
lm2903,lm393/lm393a,lm293a 7/24/12 0.0m 001 stock#ds400295 ? 2012 fairchild semiconductor corporation life support policy fairchild?s products are not authorized for use as critical components in life support devices or systems without the express written approval of the president of fairchild semiconductor corporation. as used herein: 1. life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain lif e, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. a critical component in an y component of a life support device or system whose fa ilure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com disclaimer fairchild semiconductor reserves the right to make changes with out further notice to any products herein to improve re liability, function or design. fairchild does not assume any liability arising out of the applic ation or use of any product or circuit described herein; neither does it convey any license under its pat ent rights, nor the rights of others. ordering information product number operating temperature package packing method lm393n 0 ~ +70 ? c 8-dip rail lm393an rail lm393m 8-soic rail lm393mx tape & reel lm393am rail lm393amx tape & reel lm2903n -40 ~ +105 ? c 8-dip rail lm2903m 8-soic rail lm2903mx tape & reel lm293an -25 ~ +85 ? c 8-dip rail
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