description the GM393 consist of two independent precision voltage comparators with an offset voltage specification as low as 2.0 mv, max for two comparators which were designed spe- cifically to operate from a single power supply over a wide range of voltages. operation from split power supplies is also possible and the low power supply current drain is in- dependent of the magnitude of the power supply voltage. these comparators also have a unique characteristic. in that, the input common-mode voltage range includes ground, even though operated from a single power supply voltage. application areas include limit comparators, simple analog to digital converters; pulse, square wave and time delay generators; wide range vco; mos clock timers; multivi- brators and high voltage digital logic gates. the GM393 are designed to directly interface with ttl and cmos. when operated from both plus and minus power supplies, the GM393 will directly interface with mos logic, where their low power drain is a distinct advantage over standard comparators. the GM393 is available in dip-8 and sop-8 packages. connection diagram application high precision comparators reduced v drift over temperature os eliminates need for dual supplies allows sensing near gnd compatible with all forms of logic power drain suitable for battery operation features single- supply range: 1.0v to 18v wide supply voltage range: 2.0v to 36v very low supply current drain (0.4 ma) - independent of supply voltage low input biasing current: 25 na low input offset current: 5 na maximum offset voltage: 3 mv input common-mode voltage range includes ground differential input voltage range equal to the power supply voltage low output saturation voltage: 250 mv at 4 ma output voltage compatible with ttl, dtl, ecl, mos and cmos logic systems g m 3 9 3 v 0 . 1 www.gammamicro.com 1 4 3 2 1 - - + + a b 5 6 7 8 (top view) output a inverting input a- non - inverting input a+ gnd v cc output b inverting input b- non - inverting input b+ sop-8, dip-8 package a a m i c r o e l e c t r o n i c s GM393 low power dual differential comparator signal conditioning
marking information & pin configura tions g m 3 9 3 2 a : assembl y location y : y ear w w : weekly sop-8 8 7 6 5 4 3 2 1 output b v cc input b- input b+ output a inputs a- v / gnd ee inputs a+ dip - 8 8 7 6 5 4 3 2 1 GM393 ayww GM393 ayww output b v cc input b- input b+ output a inputs a- v / gnd ee inputs a+ package shipping sop-8 2,500 /t ape & reel units GM393s8r ordering number dip-8 sop-8 GM393d8t GM393s8t 60 units / t ube 100 / tube units ordering information * for detail ordering number identification, please see last page. a a m i c r o e l e c t r o n i c s GM393 low power dual differential comparator signal conditioning
p ara met er sym bol v alu e uni t 780 510 36, 18 50 0 to + 70 260 -65 t o +15 0 mw c powe r dis sipat ion dip pack age sop pack age supp ly v oltag e input curr ent oper ating t empe ratur e ran ge lead t empe ratur e (s older ing, 1 0 sce ) stora ge t empe ratur e ran ge p d v cc i o t lead t stg absolute maximum ratings g m 3 9 3 3 v ma t j c c schematic block diagram v cc 3.5a 100a 3.5a 100a q1 q2 q3 q4 q5 q6 q7 q8 output + input - input a a m i c r o e l e c t r o n i c s GM393 low power dual differential comparator signal conditioning
electrical characteristics (v = 5v, at specified free - air temperature, unless otherwise specified) cc g m 3 9 3 4 test conditions min typ max unit characteristics input offset voltage input offset current input bias current common - mode input voltage range ** low - level output voltage large - signal differential voltage amplification v = 1.4v o 2 5 -25 mv na 5 50 9 150 -250 400 symbol v io i io i ib v icr v ol a vd v = 5v to 30v, cc v = v min, v = 1.4v cc icr o 25c 25c full range full range 25c 25c 25c 25c full range full range full range v = 1.4v o 0 to v - 1.5 cc v 0 to v - 2 cc i = 4ma, v = -1v ol id v = 15v, v = 14v cc o to 11.4v , r > 15k w to v lc c 150 50 400 200 700 mv v/ mv high - level output curretn low - level output current i oh i ol 25c 25c full range v = 5v, v = 1v oh id v = 1.5v, v = -1v ol id 0.1 50 1 na ma v = 30v, v = 1v oh id a 6 supply current i cc 25c full range r = , v = 5v lc c 0.8 1.0 2.5 r = , v = 30v lc c ma * all characteristics are measured under open loop conditions with zero common - mode input voltage unless otherwise specified. full range is 0c to 70c. ** the voltage at either input or common - mode should not be allowed to go negative by more than 0.3v . the upper end of the common - mode voltage range is v - 1.5v, but either or both inputs can go to 30v without damage. cc na switching characteristics, v = 5v, t a=25c cc test conditions min typ max unit parameter response time r connected to 5v l through 5.1k w , c = 15pf* (see note 1) l 100 - mv input step with 5 - mv overdrive ttl - level input step 1.3 0.3 s * c includes probe and jig capacitance. l note 1: the response time specified is the interval between the input step function and the instant when the output crosses 1.4v . a a m i c r o e l e c t r o n i c s GM393 low power dual differential comparator signal conditioning
g m 3 9 3 5 typical performance characteristics 80 70 60 50 40 30 20 10 0 0 5 10 15 20 25 30 35 40 v , supply voltage(vdc) cc i , i n p u t b i a s c u r r e n t ( n a ) i b t = -55c a t = -0c a t = 125c a t = 25c a t = 70c a figure 1. input bias current versus power supply voltage 10 1.0 0.1 0.01 0.001 0.01 0.1 1.0 10 100 i , output sink current (ma) sink v , s a t u r a t i o n v o l t a g e ( v d c ) o l figure 2. output saturation voltage versus output sink current out of saturation t = 125c a t = 25c a t = -55c a 1.0 0.8 0.6 0.4 0.2 0 0 5 10 15 20 25 30 35 40 v , supply voltage(vdc) cc i , s u p p l y c u r r e n t ( m a ) c c figure 3. power supply current versus power supply voltage t = -55c a t = 0c a t = 25c a t = 70c a t = 125c a r = l a a m i c r o e l e c t r o n i c s GM393 low power dual differential comparator signal conditioning
g m 3 9 3 6 a a m i c r o e l e c t r o n i c s GM393 low power dual differential comparator 0.275 7.0 0.155 4.0 0.060 1.52 0.050 1.270 0.024 0.6 inches mm ( ) pad layout sop-8 p ackage outline dimensions 0.236 0.008 0.050 nom 1.270 nom +0.21 -0.20 5.990 3.91 0.1 +0.003 -0.004 0.154 pin indent 1.600 0.130 0.063 0.005 0.057 nom 1.450 nom 0.175 0.075 0.007 0.003 +0.004 -0.003 0.016 +0.10 -0.08 0.410 +0.0018 -0.0005 0.008 +0.05 -0.01 0.200 +0.013 -0.022 0.028 +0.33 -0.56 0.710 +0.002 -0.004 0.191 +0.05 -0.10 4.850 inches mm ( ) 0 ~ 8 dip-8 p ackage outline dimensions 0.015 min 0.380 min 0.26 0.006 +0.15 -0.16 6.60 0.36 0.01 +0.25 -0.26 9.14 0.180 max 4.570 max 0.125 min 3.180 min +0.002 -0.006 0.13 +0.05 -0.15 3.30 0.018 0.004 0.46 0.10 0.039 0.07 0.99 0.18 0.06 0.01 +0.26 -0.25 1.52 0.100 nom 2.540 nom 0.021 0.005 +0.12 -0.13 0.53 +0.010 -0.015 0.30 +0.25 -0.38 7.62 +0.002 -0.003 0.01 +0.05 -0.08 0.25 0.365 0.02 9.27 0.51 inches mm ( ) signal conditioning
g m 3 9 3 7 ordering number gm 393 d8 t gamma micro. circuit type package s8: sop-8 d8: dip-8 shipping t : tube r: t ape & reel a a m i c r o e l e c t r o n i c s GM393 low power dual differential comparator signal conditioning
a a m i c r o e l e c t r o n i c s GM393 low power dual differential comparator signal conditioning g m 3 9 3 8
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