ISL22343 Datasheet, PDF (11/18 Pages) Intersil Corporation – Quad Digitally Controlled Potentiometer XDCP

ISL22343
Typical Performance Curves (Continued)
0.5
V_CC = 5.5V
0.25
T = +25°C
0
-0.25
V_CC = 2.25V
-0.50
0
50
100
150
200
250
TAP POSITION (DECIMAL)
FIGURE 7. DNL vs TAP POSITION IN RHEOSTAT MODE FOR
10kΩ (W)
2.0
T = +25°C
1.5
V_CC = 2.25V
1.0
0.5
0
V_CC = 5.5V
-0.5
0
50
100
150
200
250
TAP POSITION (DECIMAL)
FIGURE 8. INL vs TAP POSITION IN RHEOSTAT MODE FOR
10kΩ (W)
1.60
200
10k
1.20
160
0.80
5.5V
10k
120
0.40
80
0.00
2.25V
50k
-0.40
-40
0
40
80
120
TEMPERATURE (ºC)
FIGURE 9. END TO END R_TOTAL % CHANGE vs
TEMPERATURE
40
50k
0
16
66
116
166
216 266
TAP POSITION (DECIMAL)
FIGURE 10. TC FOR VOLTAGE DIVIDER MODE IN ppm
500
400
10k
300
200
100
50k
0
16
66
116
166
216
TAP POSITION (DECIMAL)
FIGURE 11. TC FOR RHEOSTAT MODE IN ppm
11
INPUT
OUTPUT
WIPER AT MID POINT (POSITION 80h)
R_TOTAL = 10kΩ
FIGURE 12. FREQUENCY RESPONSE (1MHz)
FN6423.1
March 13, 2008