CAT5122_13 Datasheet, PDF (4/11 Pages) ON Semiconductor – 16‐tap Digital Potentiometers (POTs)

CAT5120, CAT5121, CAT5122
TYPICAL OPERATING CHARACTERISTICS
(T_A = 25C, unless otherwise noted.)
250
1.5
200
V_DD = 2.7 V
150
V_DD = 5.5 V
100
50
0
0
4
8 12 16 20 24 28 32
WIPER POSITION
Figure 2. Wiper Resistance vs. Tap Position
1.0
0.5
50 K
0
−0.5
−1.0
−1.5
−2.0
−50
0
50
100
150
TEMPERATURE (C)
Figure 3. Change in End-to-End Resistance vs.
Temperature
120
100
100 k
80
60
50 k
40
20
10 k
0
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31
TAP POSITION
Figure 4. W-to-L Resistance vs. Tap Position
0.45
0.40
0.35
V_DD = 5.5 V
0.30
0.25
V_DD = 2.7 V
0.20
0.15
0.10
0.05
0
−50
0
50
100
150
TEMPERATURE (C)
Figure 5. Supply Current vs. Temperature
U/D
2 V/div
Wiper
Output
100 mV/div
200 ns/div
Figure 6. Tap-to-Tap Switching Transient
http://onsemi.com
4