BUF20800 Datasheet, PDF (5/27 Pages) Burr-Brown (TI) – 18-Channel GAMMA VOLTAGE GENERATOR with Two Programmable VCOM Channels

BUF20800
www.ti.com
SBOS329D − JUNE 2005 − REVISED OCTOBER 2006
TYPICAL CHARACTERISTICS
At TA = +25°C, V_S = 18V, V_SD = 5V, V_REFH = 17V, V_REFL = 1V, RL = 1.5kΩ connected to ground, and CL = 200pF, unless otherwise noted.
ANALOG SUPPLY CURRENT vs TEMPERATURE
16
V_S = 18V
14
12 _{VS = 10V}
10
8
6
4
2
0
−40 −20
0
20
40
60
80
100
Temperature (_ C)
Figure 1
FULL−SCALE OUTPUT SWING
REFH = 17V
REFL = 1V
Code 3FF →000
Code 000 →3FF
Time (1µs/div)
Figure 3
INTEGRAL NONLINEARITY ERROR vs INPUT CODE
0.6
0.4
0.2
0
−0.2
−0.4
−0.6
0
200
400
600
800
1000
Input Code
Figure 5
DIGITAL SUPPLY CURRENT vs TEMPERATURE
30
V_S = 5V
25
20
V_S = 3.3V
15
10
5
0
−40 −20
0
20
40
60
80
100
Temperature (_ C)
Figure 2
OUTPUT VOLTAGE vs OUTPUT CURRENT
18
17
16 OUT10−18 (sourcing), Code = 3FFh
V_REFL = 0.2V, V_REFH = 17V
15 _{RLOAD Connected to GND}
OUT1−9, V_COM1−2 (sourcing)
Code = 3FFh
3 ^{OUT1−9, VCOM1−2 (sinking)}
Code = 000h
2 ^VREFL ^{= 1V, V}REFH ^{= 17.8V}
R_LOAD Connected to 18V
1
V_REFL = 1V, V_REFH = 17.8V
R_LOAD Connected to GND
OUT10−18 (sinking), Code = 000h
V_REFL = 0.2V, V_REFH = 17V
R_LOAD Connected to 18V
0
0 10 20 30 40 50 60 70 80 90 100
Output Current (mA)
Figure 4
DIFFERENTIAL NONLINEARITY ERROR vs INPUT CODE
0.6
0.4
0.2
0
−0.2
−0.4
−0.6
0
200
400
600
800
1000
Input Code
Figure 6
5