october 1998 1 MIC6270 MIC6270 micrel MIC6270 ittybitty comparator final information general description the MIC6270 is a precision voltage comparator with an offset voltage specification of 5mv maximum. the MIC6270 is designed to operate from a single 2v to 36v power supply. operation from split power supplies is also possible. its low supply current drain is independent of the magnitude of the supply voltage. this comparator also features an input common-mode volt- age range that includes ground. inputs are protected against reverse polarity (input voltage less than v? and esd. the MIC6270 has an open-collector output that directly interfaces with ttl, cmos, and other types of logic. several MIC6270 outputs can be connected together for wired-or logic. the output also features an internal pull-up current source that can be used instead of an external load in some applications. functional configuration out v+ in in+ 1 3 45 2 v sot-23-5 (m5) features 2v to 36v supply 300 a supply current independent of supply 25na input bias current 5na input offset current 3mv input offset voltage input common-mode voltage range includes ground differential input voltage range equal to the power supply voltage 250mv at 4ma output saturation voltage output compatible with ttl, dtl, ecl, mos, and cmos logic applications limit comparators a/d converters pulse, square wave, time delay generators wide range vco mos clock timers multivibrators and high-voltage digital logic gates pin description pin number pin name pin function 1 out comparator output: 2v negative supply: negative supply for split supply application or ground for single supply application. 3 in+ noninverting input: 4in inverting input: 5 v+ positive supply: pin configuration part identification out v+ in in+ b10 1 3 45 2 v sot-23-5 (m5) ordering information part number temperature range package MIC6270bm5 40 c to +85 c sot-23-5 micrel, inc. 1849 fortune drive san jose, ca 95131 usa tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
MIC6270 micrel MIC6270 2 october 1998 electrical characteristics v+ = 5v; t a = 25 c, bold values indicate 40 c t a +85 c, t a = t j ; unless noted symbol parameter condition min typ max units v os input offset voltage note 2 25mv 9 mv i b input bias current i in(+) or i in( ) with output in linear range, 25 250 na v cm = 0v, note 3 400 na i os input offset current i in(+) i in( ) , v cm = 0v 5 50 na 150 na v cm input voltage range v+ = 30v, note 4 0 v+ 1.5 v v+ 2 v i s supply current r l = 0.3 0.9 ma r l = , v+ = 36v 0.4 1.2 ma voltage gain r l 15k ? , v+ = 15v 50 200 v/mv v o = 1v to 11v large signal response time v in = ttl logic swing, v ref = 1.4v 300 ns v rl = 5v, r l = 5.1k ? response time v rl = 5v, r l = 5.1k ? , note 5 0.6 s output sink current v in( ) = 1v, v in(+) = 0, v o 1.5v 10 20 ma output pull-up current 15 50 a saturation voltage v in( ) = 1v, v in(+) = 0, i sink 4ma 250 400 mv 700 mv differential input voltage v in(+), v in( ) 0v (or v , if used), note 6 36 v general note: devices are esd protected; however, handling precautions are recommended. note 1: a short circuit from out to v+ can cause excessive heating and damage the device. the maximum short circuit output current (out to v ) is approximately 20ma, independent of v v+ . note 2: measured at the output switch point where v out ? 1.4vdc with r s = 0 ? , v+ = 5vdc to 30vdc, and over the full input common-mode range (0vdc to v+ 1.5vdc). note 3: the direction of input current is out of the device due to its pnp input. note 4: the input common-mode voltage, v in+ , or v in must not go below 0.3v. the upper end of the common-mode voltage range is v+ 1.5v at 25 c, but either or both inputs can go to +36vdc without damage, independent of of v v+ . note 5: the response time measured using a 100mv input step with 5mv overdrive. with greater overdrive, 300ns can be obtained. see typical characteristics. note 6: positive excursions of input voltage may exceed the power supply level. as long as the other voltage remains within the common -mode range, the comparator will provide a proper output state. the low input voltage state must not be below 0.3vdc (or 0.3vdc below v v ). absolute maximum ratings supply voltage (v v+ v v ) ............................. 36v or 18v differential input voltage (v in+ v in ) ....................... 36v input voltage ............................................... 0.3v to +36 v input current (v in < 0.3v) ........................................ 50ma output short-circuit to gnd, note 1 ................................ storage temperature range ................... 65 c to +150 c lead temperature (soldering, 10 secs.) ................... 260 c operating ratings supply voltage .................................................... 2v to 36v ambient temperature range ..................... 40 c to +85 c sot-23-5 thermal resistance ( ja ) ..................... 220 c/w (mounted to printed circuit board)
october 1998 3 MIC6270 MIC6270 micrel +5v v out 5.1k v in output response time vs. overdrive (test circuit) typical characteristics 0.1 0.2 0.3 0.4 0.5 0 10203040 supply current (ma) supply voltage (v) supply current vs. supply voltage t a = +125 c +25 c 55 c r l = 10 20 30 40 50 0 10203040 input current (na) supply voltage (v) input current vs. supply voltage t a = +125 c +25 c 55 c v in(cm) = 0vdc 0.001 0.01 0.1 1 10 0.01 0.1 1 10 100 saturation voltage (v) output sink current (ma) output saturation voltage +125 c +25 c t a = 55 c -1 0 1 2 3 4 5 6 output (v) -150 -100 -50 0 50 -100 0 100 200 300 400 input (mv) time (ns) output response time vs. overdrive 20mv 100mv t a = 25 c input overdrive = 5mv -1 0 1 2 3 4 5 6 output (v) -50 0 50 100 150 -200 0 200 400 600 800 input (mv) time (ns) output response time vs. overdrive 5mv 20mv input overdrive = 100mv t a = 25 c
MIC6270 micrel MIC6270 4 october 1998 package information 0.20 (0.008) 0.09 (0.004) 0.60 (0.024) 0.10 (0.004) 3.02 (0.119) 2.80 (0.110) 10 0 3.00 (0.118) 2.60 (0.102) 1.75 (0.069) 1.50 (0.059) 0.95 (0.037) ref 1.30 (0.051) 0.90 (0.035) 0.15 (0.006) 0.00 (0.000) dimensions: mm (inch) 0.50 (0.020) 0.35 (0.014) 1.90 (0.075) ref sot-23-5 (m5) micrel inc. 1849 fortune drive san jose, ca 95131 usa tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 web http://www.micrel.com this information is believed to be accurate and reliable, however no responsibility is assumed by micrel for its use nor for an y infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or pat ent right of micrel inc. ? 1998 micrel incorporated
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