10-Channel Gamma Buffer
with VCOM Driver
ADD8710
FEATURES
1
2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
V
S
S
Single-supply operation: 4.5 V to 16.5 V
Upper/lower buffers swing to VS/GND
Gamma continuous output current: >10 mA
VCOM peak output current: 250 mA
Offset voltage: 12 mV
NC
OUT1
NC
3
IN1
4
OUT2
IN2
5
OUT3
IN3
6
OUT4
IN4
7
OUT5
IN5
Slew rate: 8 V/µs
ADD8710
8
OUT6
IN6
Unity gain stable with large capacitive loads
Supply current: 700 µA per amplifier
Compact 28-lead TSSOP
Pb-free package
Drop-in replacement for BUF11702
9
OUT7
IN7
10
11
12
13
14
OUT8
IN8
OUT9
IN9
OUT10
OUTCOM
GND
IN10
INCOM
GND
NC = NO CONNECT
APPLICATIONS
TFT LCD monitor panels
Figure 1. 28-Lead TSSOP (RU Suffix)
TFT LCD notebook panels
FUNCTIONAL BLOCK DIAGRAM
GENERAL DESCRIPTION
V
V
S
ADD8710
S
The ADD8710 is a low cost, 10-channel gamma buffer with a
V
COM driver that operates from a single supply. The part is
NC
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
OUT9
OUT10
OUTCOM
GND
NC
designed for high resolution TFT LCD panels, and is built on an
advanced, high voltage CBCMOS process.
1
2
IN1
The gamma buffers have a high slew rate, minimum 10 mA
output current, and a high capacitive load drive capability. The
VCOM buffer is capable of delivering 250 mA of peak current,
and can also drive large capacitive loads. The ADD8710 offers
wide supply range and offset voltages below 12 mV.
IN2
3
IN3
4
IN4
5
IN5
The ADD8710 is specified over the −40°C to +85°C
temperature range and is available in a Pb-free 28-lead
TSSOP package.
6
IN6
7
IN7
8
IN8
9
IN9
10
IN10
INCOM
GND
V
COM
Figure 2.
Rev. 0
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