CAT5273 Datasheet, PDF (5/14 Pages) ON Semiconductor – Dual 256‐position I2C Compatible Digital Potentiometers (POTs)

CAT5271, CAT5273
TYPICAL CHARACTERISTICS
0.03
0.02
DNL
0.01
0
−0.01
−0.02
−0.03
−0.04
−0.05
0 32 64 96 128 160 192 224 256
TAP
Figure 3. Potentiometer Divider Differential
Non-linearity, V_DD = 5.6 V
0.1
0
−0.1
INL
−0.2
−0.3
−0.4
−0.5
0
32 64 96 128 160 192 224 256
TAP
Figure 4. Potentiometer Divider Integral
Non-linearity, V_DD = 5.6 V
0.10
0.08
0.06
0.04
0.02
0
−0.02
−0.04
0 32 64 96 128 160 192 224 256
TAP
Figure 5. Rheostat Differential Non-linearity,
V_DD = 5.6 V
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
−0.02
−0.04
0
32 64 96 128 160 192 224 256
TAP
Figure 6. Rheostat Integral Non-linearity,
V_DD = 5.6 V
120
6
100
5
V_DD = 2.6 V
80
4
60
3
3.3 V
40
2
20
4.0 V
5.6 V
1
0
0
0
50
100
150
200
250
0
TAP
Figure 7. Wiper Resistance at Room
Temperature
5.6 V
5.0 V
4.0 V
3.3 V
V_DD = 2.6 V
52
104
156
208
260
TAP
Figure 8. Wiper Voltage
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