AEIC-2631-S16 quad diff erential line driver* data sheet description these line drivers are similar to the popular 26ls31 device, but without the enable function. they provide the addi- tional supply voltage range necessary for use in many industrial control applications. AEIC-2631-S16 not only supports rs-422a, but use of supplies up to 30 v. output voltage swings up to vcc -2 v are typical. the outputs are protected against shorts to ground by a two-fold scheme of current limiting and thermal shutdown. thermal shutdown is accomplished by monitoring junction temperature and comparing this to a band gap reference on chip. input hysteresis of about 0.5 v provides good noise margin, even in noisy industrial control envi- ronments. input to output propagation delays of less than 200 ns are typical for rising and falling edges of the input waveform, measured to the zero crossing of the diff eren- tial outputs. this part is available in 16l soic (pb-free) package. applications ?? encoders ?? industrial controls features ?? supply voltage range 4.75 v to 30 v ?? operation to 800 khz ?? cmos and ttl compatible inputs ?? support rs422a ?? high impedance buff ered inputs with hysteresis ?? outputs short circuit protected ?? 70 ma peak sink current ?? outputs protected by thermal shut-down pin assignment d in a in a+ a- nc d- d+ vcc c- b- b+ b in gnd c in c+ nc 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 * pin compatible with 26ls31 in applications which do not require an enable function.
2 table 1. absolute maximum ratings parameters symbol min. max. units ref. operating temperature range t a -55 125 c supply voltage range v ccd 4.75 30 v table 2. electrical characteristics unless otherwise specifi ed, typical values given at vcc = 2 v, t a = 25 c and en- < 0.8 v parameters symbol min. typ. max. units test conditions overtemp operate point (junction) t jop - 155 - c note 1 overtemp release point (junction) t jrp - 105 - c note 1 supply current i cc1 7.0 11.0 17.0 ma v cc = 5 v (i cc1 ) i cc2 9.0 13.0 20.0 v cc = 30 v (i cc2 ) input positive-going threshold v t+ 1.1 1.5 1.9 v input negative-going threshold v t- 0.7 1.0 1.4 v low level input current i il -4.0 -0.13 - ? a v in = 0 v, v cc = 30 v high level input current i ih - 0 4.0 ? a v in = 30 v, v cc = 30 v low level output1 v ol1 - 375 500 mv i ol = 20 ma, v cc = 5 v low level output2 v ol2 - 375 500 mv i ol = 20 ma, v cc = 30 v high level output1 v oh1 2.5 2.8 - v i oh = -20 ma, v cc = 5 v high level output2 v oh2 27.8 28.0 - v i oh = -20 ma, v cc = 30 v notes : 1. this is not a test parameter, but for information only. 2. it may be necessary to clamp the outputs with schottky diodes when driving extremely long cables with high capacitance betwe en outputs. these diodes should have a forward voltage of less than 0.4 v, and be connected with cathode to the output and anode to ground. table 3. ac switching characteristics values given at v cc = 24 v, t a = 25 c, c l = 100 pf on all outputs. parameters symbol min. typ. max. units test conditions propagation delay, rising input 50% point to zero crossing of diff erential outputs t plh - 150 285 ns see above. propagation delay, falling input 50% point to zero crossing of diff erential outputs t phl - 170 310 ns see above. output rise time t r - 95 310 ns see above. output fall time t f - 40 165 ns see above.
for product information and a complete list of distributors, please go to our web site: www.avagotech.com avago, avago technologies, and the a logo are trademarks of avago technologies in the united states and other countries. data subject to change. copyright ? 2005-2011 avago technologies. all rights reserved. av02-3023en - september 7, 2011 package drawings (dimensions in inches) notes: 1. lead coplanarity should be o to 0.004" max. 2. package surface fi nishing: vd1 24~27 (dual). package surface fi nishing: vd1 13~15 (16l soic(nb) matrix). 3. all dimension excluding mold fl ashes. 4. the lead width, b to be determined at 0.0075" from the lead tip. symbol 16 soic min max a 0.054 0.068 a1 0.004 0.0098 b 0.014 0.019 d 0.386 0.393 e 0.150 0.157 h 0.229 0.244 e 0.050 bsc c 0.0075 0.0098 l 0.016 0.034 x 0.020 ref 1 0 8 2 7 bsc d x e b e pin no. 1 id mark c l c l a a1 0.010 seating plane l detail a ? 2 gauge plane ? 1 0.004 detail a c h 0.015 x 45
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