CAT5172 Datasheet, PDF (6/10 Pages) ON Semiconductor – 256-Position SPI Compatible Digital Potentiometer

CAT5172
TYPICAL CHARACTERISTICS
0.03
0.02
0.01
0
−0.01
DNL
0.1
0
−0.1
INL
−0.2
−0.02
−0.03
−0.04
−0.05
0
120
100
80
60
40
20
32 64 96 128 160 192 224 256
TAP
Figure 4. Differential Non−Linearity,
V_CC = 5.6 V
V_CC = 2.6 V
3.3 V
4.0 V
5.6 V
−0.3
−0.4
−0.5
0
6
5
4
3
2
1
32 64 96 128 160 192 224 256
TAP
Figure 5. Integral Non−Linearity,
V_CC = 5.6 V
5.6 V
5.0 V
4.0 V
3.3 V
V_CC = 2.6 V
0
0
0
50
100
150
200
250
0
TAP
Figure 6. Wiper Resistance at Room
Temperature
52
104
156
208
260
TAP
Figure 7. Wiper Voltage
0.4
102.15
102.10
102.05
0.2
102.00
101.95
101.90
0
101.85
101.80
−0.2
101.75
−50
−20
10
40
70
100
−50
−20
10
40
70
100
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 8. Change in End−to−End Resistance
Figure 9. End−to−End Resistance vs.
Temperature
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