ISL22416 Datasheet, PDF (7/14 Pages) Intersil Corporation – Single Digitally Controlled Potentiometer XDCP

ISL22416
XDCP Timing (for All Load Instructions)
CS
t_WC
SCK
SDI
MSB
...
t_WRT
...
LSB
V_W
HIGH IMPEDANCE
SDO
Typical Performance Curves
100
90 ^{VCC = 3.3V, T = +125°C}
80
70
60
50
40
30
20 ^VCC ^{= 3.3V, T = +20°C}
V_CC = 3.3V, T = -40°C
10
0
0
20
40
60
80
100
120
TAP POSITION (DECIMAL)
FIGURE 1. WIPER RESISTANCE vs TAP POSITION
[ I(RW) = V_CC/R_TOTAL ] FOR 10kΩ (W)
1.4
1.2
1.0
0.8
T = +125°C
0.6
0.4
T = +25°C
0.2
0
2.7
3.2
3.7
4.2
4.7
5.2
V_CC (V)
FIGURE 2. STANDBY I_CC vs V_CC
0.2
T = +25°C
V_CC = 2.7V
0.1
0
-0.1
-0.2
0
V_CC = 5.5V
20
40
60
80
100
120
TAP POSITION (DECIMAL)
FIGURE 3. DNL vs TAP POSITION IN VOLTAGE DIVIDER
MODE FOR 10kΩ (W)
0.2
T = +25°C
0.1
V_CC = 2.7V
0
-0.1
-0.2
0
V_CC = 5.5V
20
40
60
80
100
120
TAP POSITION (DECIMAL)
FIGURE 4. INL vs TAP POSITION IN VOLTAGE DIVIDER
MODE FOR 10kΩ (W)
7
FN6227.2
September 9, 2009