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AD5203 Datasheet(PDF) 5 Page - Analog Devices

Part No. AD5203
Description  4-Channel, 64-Position Digital Potentiometer
Download  12 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD5203 Datasheet(HTML) 5 Page - Analog Devices

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AD5203
–5–
REV. 0
Typical Performance Characteristics–
CODE – Decimal
10
0
08
64
16
24
32
40
48
56
9
6
5
3
1
8
7
4
2
VDD = +3V, OR +5V
RAB = 10k
RWB
RWA
Figure 2. Wiper to End Terminal
Resistance vs. Code
WIPER RESISTANCE –
80
60
0
30
31 32
33
34
35
36
37 38
39
40
20
SS = 544 UNITS
VDD = +4.5V
TA = +25 C
Figure 5. Wiper-Contact-Resistance
Histogram
DIGITAL INPUT CODE – Decimal
0.25
–0.25
0
864
16
24
32
40
48
56
0.2
0.05
0
–0.1
–0.2
0.15
0.1
–0.05
–0.15
VDD = +3.0V
TA = +25 C, +85 C, –40 C
Figure 8. Potentiometer Divider
Differential Nonlinearity Error vs.
Code
05H
IWA CURRENT – mA
5
0
0
17
23456
4.5
2
1.5
1
0.5
3.5
2.5
4
3
RAB = 10k
VDD = +5V
TA = +25 C
3FH
20H
10H
08H
02H
Figure 3. Resistance Linearity vs.
Conduction Current
TEMPERATURE – C
12
0
–75 –50
125
–25
0
25
50
75
100
10
8
6
4
2
AD5203-10K VERSION
RAB (END-TO-END)
RWB (WIPER-TO-END)
CODE = 20H
Figure 6. Nominal Resistance vs.
Temperature
CODE – Decimal
50
0
08
64
16
24
32
40
48
56
30
40
20
10
VDD = +3.0V
TA = –40 C/+85 C
VA = +2.0V
VB = 0V
Figure 9.
∆V
WB/
∆T Potentiometer
Mode Tempco
DIGITAL INPUT CODE – Decimal
0.25
–0.25
08
64
16
24
32
40
48
56
0.2
0.05
0
–0.1
–0.2
0.15
0.1
–0.05
–0.15
VDD = +3.0V
TA = –55 C
TA = +85 C
TA = +25 C
Figure 4. Resistance Step Position
Nonlinearity Error vs. Code
DIGITAL INPUT CODE – Decimal
0.25
–0.25
08
64
16
24
32
40
48
56
0.2
0.05
0
–0.1
–0.2
0.15
0.1
–0.05
–0.15
–55 C
+85 C
+25 C
VDD = +3.0V
Figure 7. Potentiometer Divider
Nonlinearity Error vs. Code
CODE – Decimal
120
0
08
64
16
24
32
40
48
56
80
100
60
40
20
VDD = +3.0V
TA = –40 C/+85 C
VA = NO CONNECT
RWB MEASURED
Figure 10.
∆R
WB/
∆T Rheostat Mode
Tempco


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