BUF07703_16 Datasheet, PDF (13/32 Pages) Texas Instruments – Multi-Channel LCD Gamma Correction Buffer

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BUF07703
BUF06703
BUF05703
SBOS269C – MARCH 2003 – REVISED APRIL 2010
TYPICAL CHARACTERISTICS (continued)
At V_DD = 10V, unless otherwise noted.
SMALL-SIGNAL VOLTAGE FOLLOWER
7.60
V_I
7.55
V_DD = 15V V_I = 100mV
R_L = 2kW T_A = +25°C
C_L = 100pF
7.50
7.45
7.60
7.40
7.55
7.50
V_COM Buffer
7.45
Gamma Channels
7.40
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
Time (ms)
Figure 29.
TRANSIENT LOAD RESPONSE: SOURCING
7
6
Transient Load Pulse
5
4
Channel 1
3
2
V_DD = 10V, V_I = 5V
1
0
C_S = 100pF, R_S = 100W
C_L = 100pF, R_L = 1kW
5.15
5.10
t_T = 0.1ms, T_A = +25°C
5.05
5.00
4.95
4.90
Output Voltage
4.85
4.80
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Time (ms)
Figure 30.
TRANSIENT LOAD RESPONSE: SINKING
7
6
5
4
3
Channel 1
2
1
V_DD = 10V, V_I = 5V
0
C_S = 100pF, R_S = 100W
C_L = 100pF, R_L = 1kW
t_T = 0.1ms, T_A = +25°C
5.10
5.05
5.00
4.95
4.90
4.85
4.80
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Time (ms)
Figure 31.
TRANSIENT LOAD REGULATION: SINKING
6
5
4
3
2
1
0
C_L = 100pF
C_L = 1000pF
Channel 1
5.8
V_DD = 10V, V_I = 5V _5.6
R_L = 1kW, t_T = 0.1ms
T_A = +25°C
5.4
5.2
5.0
C_L = 10nF
4.8
R_NULL = 100W
4.6
0
1
2
3
4
5
6
7
8
Time (ms)
Figure 32.
TRANSIENT LOAD REGULATION: SOURCING
6
5
4
3
2
1
0
C_L = 100pF
C_L = 1000pF
Channel 1
V_DD = 10V, V_I = 5V
R_L = 1kW, t_T = 0.1ms ^5.4
T_A = +25°C
5.2
5.0
C_L = 10nF
4.8
R_NULL = 100W
4.6
4.4
0
1
2
3
4
5
6
7
8
Time (ms)
Figure 33.
TRANSIENT LOAD REGULATION: V_COM BUFFER
12
6 Sinking
0
-6 C_L = 500pF and ^VCOM ^Buffer
Sourcing
-12
1000pF
V_DD = 10V, V_I = 5V
R_L = 500W, t_T = 0.1ms
T_A = +25°C
6.0
C_L = 10nF
5.5
5.0
4.5
C_L = 100nF
R_NULL = 20W
4.0
3.5
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Time (ms)
Figure 34.
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