ADD8707 Datasheet, PDF (16/20 Pages) Analog Devices – 12-Channel Gamma Buffers with VCOM and Regulator

ADD8707
TYPICAL APPLICATIONS CIRCUIT
0.1µF
NORMALLY
OPEN
FB V_{REG OUT}
700Ω*
14.4V
V_{COM IN+}
V_{COM IN–}
8.2kΩ
4.7kΩ
2kΩ
3.3µF
V_IN11
V_IN10
V_IN8
V_IN7
V_IN6
V_IN5
V_IN3
V_IN2
V_IN1
5kΩ
55kΩ
+
1.2V _–
14.4V
VOLTAGE
REGULATOR
0Ω
TP12 = 500
700Ω*
2.43Ω
TP11 = 419
700Ω*
1.62Ω
TP10 = 365
TP9 = 349
480Ω
700Ω*
TP8 = 343
180Ω
700Ω*
TP7 = 297
1.38kΩ
700Ω*
TP6 = 213
2.52Ω
700Ω*
TP5 = 173
1.20Ω
TP4 = 163
300Ω
700Ω*
TP3 = 146
510Ω
700Ω*
TP2 = 95
1.53kΩ
700Ω*
TP1 = 7
2.64kΩ
210Ω
V_COM
PANEL V_COM
V_{COM OUT}
ITO
GAMMA
BUFFERS
V_OUT12
14.4V
V_OUT11 12.067V
V_OUT10 10.512V
V_OUT9
10.051V
V_OUT8
9.878V
V_OUT7
8.554V
V_OUT6
6.134V
V_OUT5
4.982V
V_OUT4
4.694V
V_OUT3
4.205V
V_OUT2
2.736V
V_OUT1
0.202V
V_DD
0.1µF
16V
*ESD PROTECTION RESISTORS
GND
GND
Figure 28. Typical Applications Circuit
GAMMA 12
GAMMA 11
GAMMA 10
GAMMA 9
GAMMA 8
GAMMA 7
GAMMA 6
GAMMA 5
GAMMA 4
GAMMA 3
GAMMA 2
GAMMA 1
GAMMA 12
GAMMA 11
GAMMA 10
GAMMA 9
GAMMA 8
GAMMA 7
GAMMA 6
GAMMA 5
GAMMA 4
GAMMA 3
GAMMA 2
GAMMA 1
GAMMA 12
GAMMA 11
GAMMA 10
GAMMA 9
GAMMA 8
GAMMA 7
GAMMA 6
GAMMA 5
GAMMA 4
GAMMA 3
GAMMA 2
GAMMA 1
Rev. A | Page 16 of 20