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Advanced Analog Technology, Inc.
AAT7200/A
Details are subject to change without notice
14+1-Channel Buffer for TFT LCD
Features
14-Channels with Output Current: +30mA (MAX) One channel Vcom with Output Current: +100mA (MAX) Unity Gain Buffer Capable of Driving Large Capacitive Loads Input Range Adjusted to Match TFT LCD Requirements
VDD Specified for
General Description
Consisted of 14+1-channel buffers, the AAT7200 is designed to increase the driving capability for the needs of the thin film transistor liquid crystal display (TFT LCD). This device includes a Vcom buffer circuits, four rail to rail buffer amplifiers circuits, and 10 buffer amplifiers circuits. Each buffer is capable of driving heavy load and offering fast current loading ( Vcom : 100mA, the others: 30mA). .
6.5V to 17V
TQFP-48 Package
Pin Configuration
TOP VIEW
TQFP-48
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Page 1 of 11 V 3.0
Advanced Analog Technology, Inc.
AAT7200/A
Pin Description
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Name O13 O12 O11 O10 O9 O8 GND VDD O7 O6 O5 O4 O3 NC VDD NC NC O2 GND O1 GND VDD I1 I2 I3 I4 I5 I6 I7 VDD I/O O O O O O O I I O O O O O I O I O I I I I I I I I I I Description Buffer Channel 13 Output Buffer Channel 12 Output Buffer Channel 11 Output Buffer Channel 10 Output Buffer Channel 9 Output Buffer Channel 8 Output Ground Power Supply Buffer Channel 7 Output Buffer Channel 6 Output Buffer Channel 5 Output Buffer Channel 4 Output Buffer Channel 3 Output Power Supply Buffer Channel 2 Output Ground Buffer Channel 1 Output Ground Power Supply Buffer Channel 1 Input Buffer Channel 2 Input Buffer Channel 3 Input Buffer Channel 4 Input Buffer Channel 5 Input Buffer Channel 6 Input Buffer Channel 7 Input Power Supply
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Advanced Analog Technology, Inc.
AAT7200/A
Pin Description (Cont.)
Pin No. 31 32 33 34 35 36 37 38 39 40* 40* 41 42 43 44 45 46 47 48 Name GND I8 I9 I10 I11 I12 I13 I14 I com NC I com - NC NC VDD GND VDD GND O com O14 I/O I I I I I I I I I I I I I O O Description Ground Buffer Channel 8 Input Buffer Channel 9 Input Buffer Channel 10 Input Buffer Channel 11 Input Buffer Channel 12 Input Buffer Channel 13 Input Buffer Channel 14 Input Com Buffer Positive Input (For AAT7200 Only) Com Buffer Negative Input (For AAT7200A Only) Power Supply Ground Power Supply Ground Com Buffer Output Buffer Channel 14 Output
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Advanced Analog Technology, Inc.
AAT7200/A
Absolute Maximum Ratings
CHARACTERISTICS Supply Voltage Input Voltage SYMBOL VDD
VI
VALUE +18
UNIT V
-0.5 to VDD + 0.5
V
Output Voltage
VO
IL
-0.5 to VDD + 0.5
30 100
V mA mA
o
Output Loading Current for Gamma , Rail-to-Rail Buffer Output Loading Current for Com Buffer Maximum Junction Temperature Power Dissipation, @ TC =25 o C Power Dissipation, @ TC =70 o C Package Thermal Resistance Package Thermal Resistance Operating Temperature Storage Temperature Lead Temperature (Soldering for10 seconds)
TJ PD PD JA JC TC Tstorage
---
+150 2.72 1.74 46 31
- 20 to +85
o
C
W W
C /W C /W
o
o o
o
C C C
- 45 to +125
260
Note 1: Operating device at values beyond absolute maximum ratings may cause permanent damage.
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Advanced Analog Technology, Inc.
AAT7200/A
Electrical Characteristics ( VDD =10V, TC =25oC unless otherwise specified)
Power Supply Performance Parameter Test Conditions Min Typ Max Units
Power Supply Rejection PSRR VDD from 6.5V to 17.0V Ratio Supply Current IS
-
80 9
-
dB mA
Input Characteristics Parameter Test Conditions Min Typ Max Units
VI = VDD /2 , VO = VDD /2 VI = VDD /2 , VO = VDD /2
Input Offset Voltage
VOS
IB
-
2
12
mV
Input Bias Current
-
2
50
nA
AC Characteristics Parameter Test Conditions Min Typ Max Units
V s VI =2V to 8V, 20% to 80% VI =4.5V to 5.5V 0.1% VI =5.5V to 4.5V 0.1%
Slew Rate Settling Time
SR ts
-
1 5
-
s
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Advanced Analog Technology, Inc.
AAT7200/A
Electrical Characteristics ( VDD =10V, TC =25oC unless otherwise specified) (Cont.)
Output Characteristics Parameter Test Conditions
I L =5mA (Buffer 1, 2, 13, 14) VI =0V I L =10mA (Buffer 3, 4,..., 11, 12) VI =1V I L = - 5 mA (Buffer 1, 2, 13, 14) VI =10V I L = - 10 mA (Buffer 3, 4,..., 11, 12) VI =9V I L =10mA, VI =5V I L = - 10 mA I L =50mA I L = - 50 mA VI =5V VI =5V VI =5V
Min
Typ
Max
Un
9.85 8.95 4.96 4.95 -
0.08 1.02 9.92 8.98 5.02 4.98 5.03 4.97
70 180
0.15 V 1.05 V 5.04 5.05 V
Output Swing Low
VOL
Output Swing High
VOH
Output Swing (Buffer 3, 4,..., 11, 12)
VOL VOH VOL VOH I SC
Output Swing (COM)
V mA mA
(Buffer 1~14 ) Short Circuit Current (Com Buffer), Icom- short to O com for AAT7200A
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Page 6 of 11 V 3.0
Advanced Analog Technology, Inc.
AAT7200/A
Block Diagram
AAT7200
O14 48
Ocom 47
GND 46
V DD 45
GND 44
V DD 43
NC 42
NC 41
NC 40
Icom 39
I14 38
I13 37
COM O13 1 14 2 13 35 36 I12
O12
I11
O11
3
12
11
34
I10
O10
4 10
33
I9
O9
5
9
32
I8
O8
6 8
31
GND
7 GND
30 7
V DD
V DD
8
29
I7
O7
9 5 4
6
28
I6
O6
10
27
I5
O5
11 3
26
I4
O4
12
2
1
25
I3
13 O3 NC
14
15 V DD NC
16 NC
17
18 O2
19 GND
20 O1
21 GND
22 V DD I1
23
24 I2
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Advanced Analog Technology, Inc.
AAT7200/A
Block Diagram
AAT7200A
O14 48
Ocom 47
GND 46
V DD 45
GND 44
V DD 43
NC 42
NC 41
Icom40
Icom 39
I14 38
I13 37
COM O13 1 14 2 13 35 36 I12
O12
I11
O11
3
12
11
34
I10
O10
4 10
33
I9
O9
5
9
32
I8
O8
6 8
31
GND
7 GND
30 7
V DD
V DD
8
29
I7
O7
9 5 4
6
28
I6
O6
10
27
I5
O5
11 3
26
I4
O4
12
2
1
25
I3
13 O3 NC
14
15 V DD NC
16 NC
17
18 O2
19 GND
20 O1
21 GND
22 V DD I1
23
24 I2
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Advanced Analog Technology, Inc.
AAT7200/A
Application Circuit
AAT7200
In1
I1
Out1 O1
In2
I2
Out2 O2
Out13 In13 I13 O13
Out14 In14 I14 O14
OutC InC Icom Ocom
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Advanced Analog Technology, Inc.
AAT7200/A
Application Circuit
AAT7200A
In1
I1
Out1 O1
Out2 In2 I2 O2
In13
I13
Out13 O13
Out14 In14 I14 O14
InC
Icom OutC IcomOcom
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Advanced Analog Technology, Inc.
AAT7200/A
Package Dimension
TQFP48
Symbol A A1 A2 b C D D1 E E1 e L L1 y
Dimensions In Millimeters Min TYP Max --------1.20 0.05 ----0.15 0.95 1.00 1.05 0.17 0.22 0.27 0.12 ----0.20 8.70 9.00 9.30 6.80 7.00 7.20 8.70 9.00 9.30 6.80 7.00 7.20 ----0.50 ----0.45 0.60 0.75 ----1.00 ----0 3.5 7 0.00 ----0.080
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