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TPL0102-100QPWREP Datasheet(PDF) 16 Page - Texas Instruments

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Part # TPL0102-100QPWREP
Description  TPL0102-EP 256-Taps Dual-Channel Digital Potentiometer With Non-Volatile Memory
PDF  36 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPL0102-100QPWREP Datasheet(HTML) 16 Page - Texas Instruments

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H
L
W
RHW
RWL
RTOT
RWL = RTOT x D/256
RHW = RTOT x (1 –(D/256))
Where D = Decimal Value of Wiper Code
TPL0102-EP
SLIS149 – JUNE 2014
www.ti.com
8.3.3 Ideal Resistance Values
Figure 18.
Table 2 shows the ideal values for DPOT with end-to-end resistance of 100 k
Ω. The absolute values of
resistance can vary significantly, but the ratio (RWL / RHW) is extremely accurate.
Table 2.
Step
Binary
RWL (kΩ)
RHW (kΩ)
RWL / RHW
0
0
0.00
100.00
0.00
1
1
0.39
99.61
0.00
2
10
0.78
99.22
0.01
3
11
1.17
98.83
0.01
4
100
1.56
98.44
0.02
5
101
1.95
98.05
0.02
6
110
2.34
97.66
0.02
7
111
2.73
97.27
0.03
8
1000
3.13
96.88
0.03
9
1001
3.52
96.48
0.04
10
1010
3.91
96.09
0.04
11
1011
4.30
95.70
0.04
12
1100
4.69
95.31
0.05
13
1101
5.08
94.92
0.05
14
1110
5.47
94.53
0.06
15
1111
5.86
94.14
0.06
16
10000
6.25
93.75
0.07
17
10001
6.64
93.36
0.07
18
10010
7.03
92.97
0.08
19
10011
7.42
92.58
0.08
20
10100
7.81
92.19
0.08
21
10101
8.20
91.80
0.09
22
10110
8.59
91.41
0.09
23
10111
8.98
91.02
0.10
24
11000
9.38
90.63
0.10
25
11001
9.77
90.23
0.11
26
11010
10.16
89.84
0.11
27
11011
10.55
89.45
0.12
28
11100
10.94
89.06
0.12
29
11101
11.33
88.67
0.13
30
11110
11.72
88.28
0.13
31
11111
12.11
87.89
0.14
16
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Copyright © 2014, Texas Instruments Incorporated



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