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?2001 fairchild semiconductor corporation www.fairchildsemi.com rev. 1.0.2 features ? single supply operation: 2v to 36v ? dual supply operation: 1v to 18v ? allow comparison of voltages near ground potential ? low current 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. descritpion the ka293 series consists of two independent voltage comparators designed to operate from a single power supply over a wide voltage range. 8-dip 8-sop 9-sip 1 1 1 internal block diagram ka293/ka293a, ka393/ka393a, ka2903 dual differential comparator
ka293/ka293a, ka393/ka393a, ka2903 2 schematic diagram absolute maximum ratings thermal data parameter symbol value unit power supply voltage v cc 18 or 36 v differential input voltage v i(diff) 36 v input voltage v i - 0.3 to +36 v output short circuit to gnd - continuous - power dissipation, ta = 25 c 8-dip 8-sop p d 1040 480 mw operating temperature ka393/ka393a ka293/ka293a ka2903 t opr 0 ~ + 70 - 25 ~ + 85 - 40 ~ + 85 c storage temperature t stg - 65 ~ + 150 c parameter symbol value unit thermal resistance junction-ambient max. 8-dip 8-sop r ja 120 260 c/w
ka293/ka293a, ka393/ka393a, ka2903 3 electrical characteristics (v cc =5v, t a =25 c, unless otherwise specified) note 1 ka393 / ka393a : 0 t a +70 c ka293 / ka293a : -25 t a +85 c ka2903 : -40 t a +85 c parameter symbol conditions ka293a/ka393a ka293/ka393 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 to1.5v note 1 - - 4.0 - - 9.0 input offset current i io - 5 50 - 5 50 na note 1 - - 150 - - 150 input bias current i bias - 65 250 - 65 250 na note 1 - - 400 - - 400 input common mode voltage range v i(r) 0- v cc -1.5 0- v cc -1.5 v note 1 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 6 18 - 6 18 - ma output saturation voltage v sat v i(-) 1v, vi(+) =0v - 160 400 - 160 400 mv i sink = 4ma note 1 - - 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
ka293/ka293a, ka393/ka393a, ka2903 4 electrical characteristics (continued) (v cc =5v, t a =25 c, unless otherwise specified) note 1 ka393 / ka393a : 0 t a +70 c ka293 / ka293a : -25 t a +85 c ka2903 : -40 t a +85 c parameter symbol conditions ka2903 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 note 1 - 9 15 input offset current i io - 5 50 na note 1 - 50 200 input bias current i bias - 65 250 na note 1 - - 500 input common mode voltage range v i(r) 0-v cc -1.5 v note 1 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 note 1 - - 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
ka293/ka293a, ka393/ka393a, ka2903 5 typical performance 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
ka293/ka293a, ka393/ka393a, ka2903 6 mechanical dimensions package dimensions in millimeters 6.40 0.20 3.30 0.30 0.130 0.012 3.40 0.20 0.134 0.008 #1 #4 #5 #8 0.252 0.008 9.20 0.20 0.79 2.54 0.100 0.031 () 0.46 0.10 0.018 0.004 0.060 0.004 1.524 0.10 0.362 0.008 9.60 0.378 max 5.08 0.200 0.33 0.013 7.62 0~15 0.300 max min 0.25 +0.10 ?.05 0.010 +0.004 ?.002 8-dip
ka293/ka293a, ka393/ka393a, ka2903 7 mechanical dimensions (continued) package dimensions in millimeters 4.92 0.20 0.194 0.008 0.41 0.10 0.016 0.004 1.27 0.050 5.72 0.225 1.55 0.20 0.061 0.008 0.1~0.25 0.004~0.001 6.00 0.30 0.236 0.012 3.95 0.20 0.156 0.008 0.50 0.20 0.020 0.008 5.13 0.202 max #1 #4 #5 0~8 #8 0.56 0.022 () 1.80 0.071 max0.10 max0.004 max min + 0.10 -0.05 0.15 + 0.004 -0.002 0.006 8-sop
ka293/ka293a, ka393/ka393a, ka2903 8 mechanical dimensions (continued) package dimensions in millimeters 21.84 0.20 0.860 0.008 22.24 0.876 max 1.20 0.10 0.047 0.004 0.60 0.10 0.024 0.004 0.76 0.030 () 2.54 0.100 1.15 0.20 0.045 0.008 5.80 0.20 0.228 0.008 3.30 0.30 0.130 0.012 7.30 0.287 max #1 #9 1.25 0.10 3.00 0.20 0.118 0.008 0.049 0.004 0.25 0.10 0.010 0.004 6.00 0.236 max 9-sip
ka293/ka293a, ka393/ka393a, ka2903 9 ordering information product number package operating temperature ka393 8-dip 0 ~ + 70 c ka393a ka393d 8-sop ka393ad ka393s 9-sip ka293 8-dip -25 ~ + 85 c ka293a ka293d 8-sop ka293ad ka2903 8-dip -40 ~ + 85 c ka2903d 8-sop
ka293/ka293a, ka393/ka393a, ka2903 12/21/01 0.0m 001 stock#dsxxxxxxxx ? 2001 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 life, 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 any component of a life support device or system whose failure 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 without further notice to any products herein to improve reliability, function or design. fairchild does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights, nor the rights of others.
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product folder - fairchild p/n ka393 - dual comparator back to top application notes an-4101: an-4101 lithium-ion battery charger and adapter using a fairchild power switch (sps) (424 k) jul 19, 2002 an-9012: an-9012 induction heating system topology review (230 k) jul 19, 2002 back to top space space home | find products | technical information | buy products | support | company | contact us | site index | privacy policy ? copyright 2002 fairchild semiconductor space space file:///e|/new/html/ka393.html (2 of 2) [7/26/02 12:16:18 pm]

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