BUF16821_1 Datasheet, PDF (6/30 Pages) Texas Instruments – Programmable Gamma-Voltage Generator and VCOM Calibrator with Integrated Two-Bank Memory

BUF16821
SBOS428B – JULY 2008 – REVISED MAY 2009 ............................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS
At T_A = +25°C, V_S = +18V, V_SD = +2V, R_L = 1.5kΩ connected to ground, and C_L = 200pF, unless otherwise noted.
OUTPUT VOLTAGE vs OUTPUT CURRENT
(V_COM1 and V_COM2)
18.0
17.5
17.0
16.5
16.0
V_COM1
15.5
15.0
3.0
2.5
2.0
1.5
1.0
0.5
0
0
V_COM2
25
50
75
100
125
150
Output Current (mA)
Figure 1.
DIGITAL SUPPLY CURRENT vs TEMPERATURE
120
118
116
114
112
110
108
106
104
102
100
-50 -25
0
25
50
75
Temperature (°C)
Figure 3.
100 125
9.020
9.015
OUTPUT VOLTAGE vs TEMPERATURE
10 Typical Units Shown
9.010
9.005
9.000
8.995
8.990
8.985
8.980
-50 -25
0
25
50
75
Temperature (°C)
Figure 5.
100 125
OUTPUT VOLTAGE vs OUTPUT CURRENT
(Channels 1–16)
18.0
17.5
17.0
16.5
16.0
Output Swing High
15.5
15.0
3.0
2.5
2.0
1.5
1.0
Output Swing Low
0.5
0
0
25
50
75
100
125
150
Output Current (mA)
Figure 2.
ANALOG SUPPLY CURRENT vs TEMPERATURE
11.0
10.5
10.0
9.5
9.0
8.5
8.0
7.5
7.0
6.5
-50 -25
0
25
50
75
Temperature (°C)
Figure 4.
100 125
DIFFERENTIAL LINEARITY ERROR
0.15
0.10
0.05
0
-0.05
-0.10
-0.15
0
256
512
768
Input Code
Figure 6.
1024
6
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