ISL22326 Datasheet, PDF (7/13 Pages) Intersil Corporation – Dual Digitally Controlled Potentiometers

ISL22326
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Typical Performance Curves
100
Vcc = 3.3V, T = 125ºC
90
80
70
60
50
40
30
20 ^{Vcc = 3.3V, T = 20ºC}
10
0
0
20
40
VCC
60
Vcc = 3.3V, T = -40ºC
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 _VCC
0.8
0.6
0.4
0.2
0
2.7
3.2
T=125º C
T=25º C
3.7
4.2
4.7
5.2
Vcc, V
FIGURE 2. STANDBY I_CC vs V_CC
0.2
Vcc = 2.7V
0.1
T = 25ºC
0.2
Vcc = 2.7V
0.1
T = 25ºC
0
0
-0.1
-0.2
0
Vcc = 5.5V
20
40
60
80 100 120
TAP POSITION (DECIMAL)
FIGURE 3. DNL vs TAP POSITION IN VOLTAGE DIVIDER
MODE FOR 10kΩ (W)
-0.1
Vcc = 5.5V
-0.2
0
20
40
60
80 100 120
TAP POSITION (DECIMAL)
FIGURE 4. INL vs TAP POSITION IN VOLTAGE DIVIDER
MODE FOR 10kΩ (W)
1.30
10k
1.10
0.90
0.70
0.50 _{Vcc = 5.5V}
0.30
0.10
-0.10
-0.30
-40 -20 0
Vcc = 2.7V
50k
20 40 60 80
TEMPERATURE (ºC)
100 120
FIGURE 5. ZSerror vs TEMPERATURE
0.00
-0.30
-0.60
Vcc = 2.7V
50k
Vcc = 5.5V
-0.90
10k
-1.20
-1.50
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (ºC)
FIGURE 6. FSerror vs TEMPERATURE
7
FN6176.0
July 17, 2006