advanced analog technology, inc. ? x?w?t??ta?|3--?q ? advanced analog technology, inc . v 0.1 aat 720 2 preliminary AAT7202 12+1-channel buffer for tft lcd features z 12 channels with output current: + 30ma (max) z 1 vcom with output current: + 100ma (max) z unity gain buffer capable of driving large capacitive loads z input range matched to lcd reference requirements z specified for -20 o c to +85 o c?6.5v to 16v z tqfp-48 pins general description the aat7200 consists of 12+1 channel buffers target toward the needs of thin film transistor liquid crystal display (tft lcd). this device consist of a vcom buffer circuits, four rail to rail buffer amplifiers circuits and 8 buffer amplifiers circuits. each buffer is capable of driving heavy capacitive loads and offers fast load current (vcom : 100ma, the others : 30ma). . pin configuration top view
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? advanced analog technology, inc . v 0.1 aat 720 2 pin description pin # name i/o descri p tion 1 o11 o buffer channel 11 out p ut 2 o10 o buffer channel 10 out p ut 3 o9 o buffer channel 9 out p ut 4 o8 o buffer channel 8 out p ut 5 o7 o buffer channel 7 out p ut 6 n.c. 7 vss i ground 8 vdd i power 9 n.c. 10 o6 o buffer channel 6 out p ut 11 o5 o buffer channel 5 out p ut 12 o4 o buffer channel 4 out p ut 13 o3 o buffer channel 3 out p ut 14 n.c. 15 vdd i power 16 n.c. 17 n.c. 18 o2 o bu f fer channel 2 out p ut 19 vss i ground 20 o1 o buffer channel 1 out p ut 21 vss i ground 22 vdd i power 23 i1 i buffer channel 1 in p ut 24 i2 i buffer channel 2 in p ut 25 i3 i buffer channel 3 in p ut 26 i4 i buffer channel 4 in p ut 27 i5 i buffe r channel 5 in p ut 28 i6 i buffer channel 6 in p ut 29 n.c. 30 vdd i power * to be continued
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? advanced analog technology, inc . v 0.1 aat 720 2 pin # name i/o descri p tion 31 vss i ground 32 n.c. 33 i7 i buffer channel 7 in p ut 34 i8 i buffer channel 8 in p ut 35 i9 i buffer channel 9 in p ut 36 i10 i buffer channel 10 in p ut 37 i11 i buffer channel 11 in p ut 38 i12 i buffer channel 12 in p ut 39 icom i com buffer in p ut 40 n.c. 41 n.c. 42 n.c. 43 vdd i power 44 vss i ground 45 vdd i power 46 vss i ground 47 ocom o com buffe r out p ut 48 o12 o buffer channel 12 out p ut
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? advanced analog technology, inc . v 0.1 aat 720 2 absolute maximum ratings characteristics symbol value unit supply voltage v dd +18 v input voltage v i 5 . 0 ? to 5 . 0 v dd + v maximum junction temperature t j +125 o c operating temperature t ope -40 to +85 o c storage temperature t stg -65 to 150 o c lead temperature(soldering,10 second) --- 260 o c note1: value beyond absolute maximum ratings ma y cause permanent damage to the device.
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? advanced analog technology, inc . v 0.1 aat 720 2 electrical characteristics (v dd =10v, t a =25 o c unless otherwise specified.) power supply performance parameter test conditi ons min typ max units power supply rejection ratio[2] psrr v dd is moved from 6.5v to 15.5v 80 db supply current i s 9 ma input characteristics parameter test conditi ons min typ max units input offset voltage v os vin=vdd/2 , vout =vdd/2 2 12 mv input bias current i b vin=vdd/2 , vout =vdd/2 2 50 na output char acteristics parameter test conditi ons min typ max units i l =5ma(buffer 1,2,11,12) vin=0v 0.08 0.15 v output swing low v ol i l =10ma (buffer 3,4,?,9,10) vin=1v 1.02 1.05 v i l =-5ma (buffer 1,2,11,12) vin=10v 9.85 9.92 v output swing high v oh i l =-10ma (buffer 3,4,?,9,10) vin=9v 8.95 8.98 v v ol i l =10ma vin=5v 5.02 5.04 v output swing (buffer 3,4,?,9,10) v oh i l =-10ma vin=5v 4.96 4.98 v v ol i l =50ma vin=5v 5.03 5.05 v output swing (com) v oh i l =-50ma vin=5v 4.95 4.97 v (buffer 1~12 ) + 70 ma short circuit current i sc (com buffer) + 180 ma
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? advanced analog technology, inc . v 0.1 aat 720 2 ac characteristics parameter test conditions min t y p max units slew rate[2] sr vin=2v to 8v, 20% to 80% 1 v/ g s settling time t s vin=4.5v to 5.5v 0.1% vin=5.5v to 4.5v 0.1% 5 g s note2: slew rage is measured on rising and falling edges. function block diagram
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? advanced analog technology, inc . v 0.1 aat 720 2 application circuit icomp 10 ? 1f 10 ? 1f 10 ? 1f 10 ? 1f 10 ? 1f 10 ? ocomp icomp o1 10f i1 o2 i2 o3 i3 o11 i11 o12 i12 inc outc in1 out1 in2 out2 in3 out3 in11 out11 in12 out12
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? advanced analog technology, inc . v 0.1 aat 720 2 package dimension (dimensions shown in millimeters)
advanced analog technology, inc. ? x?w?t??ta?|3--?q ? advanced analog technology, inc . v 0.1 aat 720 2 dimensions in millimeters symbol min. nom. max. a --- --- 1.20 a1 0.05 --- 0.15 a2 0.95 1.00 1.05 b 0.17 0.22 0.27 c 0.09 --- 0.20 e --- 9.00 --- e1 --- 7.00 --- d --- 9.00 --- d1 --- 7.00 --- e --- 0.50 --- l 0.45 0.60 0.75 l1 --- 1.00 --- c 0 o 3.5 o 7 o y 0.0 --- 0.08
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