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ap393 low power low offset voltage dual comparators ds30737 rev. 2 - 2 1 of 14 ap393 www.diodes.com ? diodes incorporated features ? wide supply - voltage range: 2.0v to 36v - single or dual supplies: 1.0v to 18v ? 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 ? packages: 8-pin sop-8l and dfn (under development) green packages advantages ? high precision comparators ? reduced v os drift over temperature ? eliminates need for dual supplies ? allows sensing near ground ? compatible with all forms of logic ? power drain suitable for battery operation pin assignment general description the ap393 consists of two independent precision voltage comparators with an offset voltage specification as low as 2.0 mv max for two comparators which were designed specifically to operate from a single power supply over a wide range of voltages. operation from split po wer supplies is also possible and the low power supply current drain is independent 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 co mparators, simple analog to digital converters; pulse, squarew ave and time delay generators; wide range vco; mos clock timers; multivibrators and high voltage digital logic gates. the ap393 is designed to directly interface with ttl and cmos. when operated from both plus and minus power supplies, the ap393 will directly interface with mos logic where their low power drain is a distinct advantage over standard comparators. sop-8l/dfn-8l 1 2 3 45 6 7 8 (top view) inverting input 1 gnd ap393 non-inverting input 1 output 2 output 1 v + inverting input 2 non-inverting input 2 pin descriptions pin name pin no. description output 1 1 channel 1 output inverting input 1 2 channel 1 negative input non-inverting input 1 3 channel 1 positive input gnd 4 ground pin name pin no. description non-inverting input 2 5 channel 2 positive input inverting input 2 6 channel 2 negative input output 2 7 channel 2 output v + 8 vcc
ap393 low power low offset voltage dual comparators ds30737 rev. 2 - 2 2 of 14 ap393 www.diodes.com ? diodes incorporated a p 3 9 3 x x x package packing blank : tube or bulk -7/-13 : taping sm : sop-8l fe : dfn lead-free blank : lead-free g : green ordering information (note 1) 7? tape and reel 13? tape and reel device package code packaging quantity part number suffix quantity part number suffix ap393sm sm sop-8l 3000/tape & reel -7 10,000/tape & reel -13 ap393fe fe dfn 3000/tape & reel -7 10,000/tape & reel -13 block diagram inverting input 1 gnd non-inverting input 1 output 2 output 1 inverting input 2 non-inverting input 2 1 2 3 4 5 6 7 8 ab + -+- v + v + 100a 3.5a 100a 3.5a +input -input output q1 q2 q3 q4 q5 q6 q7 q8 note 1: for packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf .
ap393 low power low offset voltage dual comparators ds30737 rev. 2 - 2 3 of 14 ap393 www.diodes.com ? diodes incorporated absolute maximum ratings (note 11) symbol parameter rating unit v cc supply voltage 36 v v in differential input voltage (note 9) 36 v v in input voltage -0.3 to +36 v i cc input current (v in -0.3v) (note 4) 50 ma sop-8l (sm) 600 p d power dissipation (note 2) dfn (fe) 250 mw output short-circuit to ground (note 3) continuous t op operating temperature range 0 to +70 o c t st storage temperature range -65 to +150 o c t lead lead temperature range (soldering, 10 sec) +260 o c dfn soldering (10 sec) +260 vapor phase (60 sec) +215 soldering information sop-8l infrared (15 sec) +220 o c esd rating (1.5k ? in with 100pf) 1300 v electrical characteristics (v cc =5v, t a =25 o c, unless otherwise stated) symbol parameter conditions min. typ. max. unit v offset input offset voltage (note 10) - 7.0 12.0 mv i bias input bias current i in (+) or i in (-) with output in linear range, v cm =0v (note 6) - 25 250 na i offset input offset current i in (+) - i in (-) v cm =0v - 5.0 50 na input common mode voltage range v + =30v (note 7) 0 - v + -1.5 v v + =5v - 0.4 1 i cc supply current r l = v + =36v - 1 2.5 ma voltage gain r l > 15k ? , v + =15v v o =1v to 11v 50 200 - v/mv large signal response time v in =ttl logic swing, v ref =1.4v, v rl =5v, r l =5.1k ? - 300 - ns response time v rl =5v, r l =5.1k ? (note 8) - 1.3 - s i o(sink) output sink current v in (-)=1v, v in (+)=0, v o < 1.5v 6.0 16 - ma v sat saturation voltage v in (-)=1v, v in (+)=0, i sink < 4ma - 250 400 mv i o(leak) output leakage current v in (-)=0, v in (+)=1v, v o =5v - 0.1 - na electrical characteristics (v cc =5v) (note 5) symbol parameter conditions min. typ. max. unit v offset input offset voltage (note 10) - - 12 mv i offset input offset current i in (+) -i in (-), v cm =0v - - 150 na i bias input bias current i in (+) or i in (-) with output in linear range, v cm =0v (note 6) - - 400 na input common mode voltage range v + =30v (note 7) 0 - v + -2.0 v v sat saturation voltage v in (-)=1v, v in (+)=0, i sink < 4ma - - 700 mv i o(leak) output leakage current v in (-)=0, v in (+)=1v, v o =30v - - 1.0 a differential input voltage keep all v in ?s > 0v (or v - , if used), (note 9) - - 36 v
ap393 low power low offset voltage dual comparators ds30737 rev. 2 - 2 4 of 14 ap393 www.diodes.com ? diodes incorporated note 2: for operating at high temperatures, the ap393 must be derated based on a 125c maximum junction temperature and a thermal resistance of 170c/w which applies for the device solder ed in a printed circuit board, operating in a still air ambien t. the ap393 must be derated based on a 150c maximum junction te mperature. the low bias dissipation and the ?on-off? characteristic of the outputs keeps the chip dissipation very small (p d < 100 mw), provided the output transistors are allowed to saturate. note 3: short circuits from the output to v + can cause excessive heating and eventual destruc tion. when considering short circuits to ground, the maximum output current is approximately 20 ma independent of the magnitude of v + . note 4: this input current will only exist when the voltage at any of the input leads is driven negative. it is due to the collector-ba se junction of the input pnp transistors bec oming forward biased and thereby acting as input diode clamps. in addition to this diode action, there is also lateral npn par asitic transistor action on the ic chip. this transistor acti on can cause the output voltages of the comparators to go to the v + voltage level (or to ground for a large overdrive) for the time duration that an input is driven negative. this is not destructive and normal output st ates will re-establish when the input voltage, which is negativ e, again returns to a value greater than -0.3v. note 5: the ap393 temperature specifications are limited to 0c < t a < +70c. note 6: the direction of the input current is out of the ic due to t he pnp input stage. this current is essentially constant, independe nt of the state of the output so no loading c hange exists on the reference or input lines. note 7: the input common-mode voltage or either input signal voltage 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 at 25c, but either or both inputs can go to 36v without damage, independent of the magnitude of v + . note 8: the response time specified is for a 100 mv input step with 5 mv overdrive. for larger overdrive signals 300 ns can be obtained, see typical performanc e characteristics section. note 9: positive excursions of input voltage ma y 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 less than -0.3v (or 0.3v below the magnitude of the negative power supply, if used). note 10: at output switch point, v o ~ 1.4v, r s =0 ? with v + from 5v to 30v; and over the full input common-mode range (0v to v + -1.5v), at 25c. note 11: refer to rets193ax for ap393 military specifications. typical circuit (v cc =5.0v dc ) v o 3.0k v + +v in +v ref basic comparator + - dp393 driving cmos + - +5.0v dc 100k dp393 1/4 mm54cxx driving ttl + - ap393 1/4 dm54xx +5v dc 10k + - v o 100k 100k 100k 100k 75 pf 4.3k v + v + v + squarewave oscillator 1:100khz 1/2 ap393 0
ap393 low power low offset voltage dual comparators ds30737 rev. 2 - 2 5 of 14 ap393 www.diodes.com ? diodes incorporated typical circuit (continued) (v cc =5.0v dc ) pulse generator + - v o 100k 1m 1m 1m 80 pf 15k v + +15v dc 1m r2 r1 1n914 d1 1n914 d2 60 s 6 s -v + 0 t o t 1 t 2 *for large ratios of r1/r2, d1 can be omitted 1/2 ap393 * crystal controlled oscillator + - v o 200k 0.1uf 2.0k v + v + 100k 200k 0 crystal f=100khz 1/2 ap393 + - + - + - +v c frequency control voltage input 0.1 f 10 20k 20k 50k v + /2 output2 output1 500pf v + 0.01 f 3.0k 5.1k 100k 3.0k v + two-decade high frequency vco v + /2 1/2 ap393 1/2 ap393 1/2 ap393 100k v o 3.0k v + +v in +v ref basic comparator + - v*=+30v dc +250mv dc < v c < +50v dc 700hz < f o < 100khz 1/2 ap393 non-inverting comparator with hysteresis v o 3k v + +v in +v ref + - 10m 10k 1/2 ap393
ap393 low power low offset voltage dual comparators ds30737 rev. 2 - 2 6 of 14 ap393 www.diodes.com ? diodes incorporated typical circuit (continued) (v cc =5.0v dc ) inverting comparator with hysteresis + - 3k +v in v + 1m 1m 1m v o v + 1/2 ap393 v o 6.2k v + output strobing + - strobe input * * or logic gate without pull-up resistor 1/2 ap393 and gate f 3k v + a + - 1k b c 1k 100k 100k 100k 39k +0.375v 0 "0" "1" 1/2 ap393 v + or gate 3k v + a + - 1k b c 1k 100k 100k 100k 200k +0.075v v + 0 "0" "1" f 1/2 ap393 large fan-in and gate r4 3k v + a + - d1 b c 100k 10k v + 0 "0" "1" d d2 d3 d4 all diodes 1n914 100k v out 1/2 ap393 limit comparator + - + - 2r s 2r s r s 10k v + (12v dc ) lamp 12 esb +v in +v ref low +v ref hi 2n2222 1/2 ap393 1/2 ap393
ap393 low power low offset voltage dual comparators ds30737 rev. 2 - 2 7 of 14 ap393 www.diodes.com ? diodes incorporated typical circuit (continued) (v cc =5.0v dc ) 5.1k comparing input voltages of opposite polarity + - 2n2222 100k 100k +v in1 -v in2 1/2 ap393 oring the outputs + - + - 3.0k v o v + 1/2 ap393 1/2 ap393 zero crossing detector (single power supply) 5.1k v + + - v o 100k 100k 5.1k 5.1k 1n914 v in 10k 20m 1/2 ap393 one-shot multivibrator 10k v + + - v o 1n914 1m 1n914 100pf 0.001 f 1m 1m + 0 t 0 pw t 0 t 1 0 v + 1ms 1/2 ap393 bi-stable multivibrator 15k v + + - v o 100k s 100k 100k 51k r v + 0 v + 0 +15v 0 s r 1/2 ap393
ap393 low power low offset voltage dual comparators ds30737 rev. 2 - 2 8 of 14 ap393 www.diodes.com ? diodes incorporated typical circuit (continued) (v cc =5.0v dc ) one-shot multivibrator with input lock out v + + - v o 100pf 100k 1m t 0 t 1 0 v + + - 100k 1m +v in 240k 62k 10m 15k 560k 10m 40 s 1 s 0 +4v 1/2 ap393 1/2 ap393 time delay generator 3.0k v + v o3 10m 0 + - 3.0k v o2 + - 3.0k v o1 + - + - t 0 t 1 t 2 t 3 t 4 v 1 v 2 v 3 v + t v c1 v 1 v 2 v 3 51k 51k 51k 10k 10k 10k 200k 15k 10k v c1 c1 0.001 f 10m 10m v + v + v + t 0 t 4 +v in 10k input gating signal 0 v + t 0 t 1 0 v + t 0 t 2 0 v + t 0 t 3 1/2 ap393 1/2 ap393 1/2 ap393 1/2 ap393 0
ap393 low power low offset voltage dual comparators ds30737 rev. 2 - 2 9 of 14 ap393 www.diodes.com ? diodes incorporated split-supply applications (v + =+15v dc and v - =-15 v dc ) + - + - + - 2.4k 2.4k mos clock driver 1/2 ap393 1/2 ap393 1/2 ap393 1/2 ap393 zero crossing detector + - v in + v - 5.1k v + v o 1/2 ap393 + - v in + v 5.1k v + v o -5 v dc comparator with a negative reference 1/2 ap393
ap393 low power low offset voltage dual comparators ds30737 rev. 2 - 2 10 of 14 ap393 www.diodes.com ? diodes incorporated typical characteristics supply current input current output saturation voltage response time for various input overdrives?negative transition response time for various input overdrives?positive transition
ap393 low power low offset voltage dual comparators ds30737 rev. 2 - 2 11 of 14 ap393 www.diodes.com ? diodes incorporated application information the ap393 are high gain, wide bandwidth devices which, like most comparators, can easily oscillate if the output lead is inadvertently allowed to capacit ively couple to the inputs via stray capacitance. this shows up only during the output voltage transition intervals as the comparator change states. power supply bypassing is not required to solve this problem. standard pc board layout is helpful as it reduces stray input-output coupling. reducing the input resistors to < 10k ? reduces the feedback signal levels and finally, adding even a small amount (1.0 to 10 mv) of positive feedback (hysteresis) causes such a rapid transition that oscillations due to stray feedback are not possible. simply socketing the ic and attaching resistors to the pins will cause input-output oscillations during the small transition intervals unless hysteresis is used. if the input signal is a pulse waveform, with relatively fast rise and fall times, hysteresis is not required. all input pins of any unused comparators should be tied to the negative supply. the bias network of the ap393 es tablishes a drain current which is independent of the magnitude of the power supply voltage over the range of from 2.0 v dc to 30 v dc . it is usually unnecessary to use a bypass capacitor across the power supply line. the differential input voltage may be larger than v+ without damaging the device (note 8). pr otection should be provided to prevent the input voltages from going negative more than -0.3 v dc (at 25c). an input clamp diod e can be used as shown in the applications section. the output of the ap393 is the uncommitted collector of a grounded-emitter npn output transistor. many collectors can be tied together to provide an output or?ing function. an output pull-up resistor can be connected to any available power supply voltage within the permitted supply voltage range and there is no restriction on this voltage due to the magnitude of the voltage which is applied to the v + terminal of the ap393 package. the output can also be used as a simple spst switch to ground (when a pull-up resistor is not used). the amount of current which the output device can sink is limited by the drive available (which is independent of v + ) and the of this device. when the maximum current limit is reached (approximately 16ma), the output transistor will come out of saturation and the output voltage will rise very rapidly. the output saturation voltage is limited by the approximately 60 ? r sat of the output transistor. the low offset voltage of the output transistor (1.0 mv) allows the output to clamp essentially to ground level for small load currents.
ap393 low power low offset voltage dual comparators ds30737 rev. 2 - 2 12 of 14 ap393 www.diodes.com ? diodes incorporated marking information (1) sop-8l ap393 (top view) y ww part number logo ww: nth week y: year x blank : lead free g : green (2) dfn blank : lead free green : underlined first code d6 mar king code : d6 (top view ) marking code table device package marking code date code ap393sm sop-8l ap393 yww ap393fe dfn d6 - date code key year 2006 2007 2008 2009 2010 code t u v w x month jan feb march apr may jun jul aug sep oct nov dec code 1 2 3 4 5 6 7 8 9 o n d
ap393 low power low offset voltage dual comparators ds30737 rev. 2 - 2 13 of 14 ap393 www.diodes.com ? diodes incorporated package information (all dimensions in mm) (1) dfn2116-8 1.55/1.675 typ 1.60 0.30/0.50 typ 0.40 0.545/0.605 typ 0.575 2.05/2.175 typ 2.10 0.275/0.375 typ 0.325 0.20/0.30 typ 0.25 typ 0.50 1.60/1.80 typ 1.70 0/0.05 typ 0.02 typ 0.13 (2) sop-8l 3.85/3.95 typ 3.90 3.80/3.90 typ 3.85 7 4 5 0.60/0.70 typ 0.65 0.15/0.25 typ 0.20 0 . 6 0 / 0 . 8 0 t y p 0 . 7 0 1.27 4.85/4.95 typ 4.90 1.40/1.50 typ 1.45 0.30/0.50 typ 0.40 5.90/6.10 typ 6.00 5 4 1 8 0.08/0.25 typ 0.15 r 0 . 1 ( a l l s i d e ) 9 4 3 0.35 recommended land pattern 8x 2.2 .20 6x 1.27 8x .02
ap393 low power low offset voltage dual comparators ds30737 rev. 2 - 2 14 of 14 ap393 www.diodes.com ? diodes incorporated

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