Datasheet

AD5203
–5–REV. 0
Typical Performance Characteristics–
CODE – Decimal
RESISTANCE – kV
10
0
08 64
16 24 32 40
48
56
9
6
5
3
1
8
7
4
2
V
DD
= +3V, OR +5V
R
AB
= 10kV
R
WB
R
WA
Figure 2. Wiper to End Terminal
␣ ␣ Resistance vs. Code
WIPER RESISTANCE – V
FREQUENCY
80
60
0
30 31
32 33 34 35 36 37 38 39
40
20
SS = 544 UNITS
V
DD
= +4.5V
T
A
= +258C
Figure 5.␣ Wiper-Contact-Resistance
Histogram
DIGITAL INPUT CODE – Decimal
DNL ERROR – LSB
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
V
DD
= +3.0V
T
A
= +258C, +858C, –408C
Figure 8. Potentiometer Divider
Differential Nonlinearity Error vs.
Code
05
H
I
WA
CURRENT – mA
V
WB
VOLTAGE – V
5
0
0
1723456
4.5
2
1.5
1
0.5
3.5
2.5
4
3
R
AB
= 10kV
V
DD
= +5V
T
A
= +258C
3F
H
20
H
10
H
08
H
02
H
Figure 3. Resistance Linearity vs.
␣ ␣ Conduction Current
TEMPERATURE – 8C
NOMINAL RESISTANCE – kV
12
0
–75 –50 125
–25 0 25 50 75 100
10
8
6
4
2
AD5203-10K VERSION
R
AB
(END-TO-END)
R
WB
(WIPER-TO-END)
CODE = 20
H
␣ ␣ Figure 6.␣ Nominal Resistance vs.
␣ ␣ Temperature
CODE – Decimal
POTENTIOMETER MODE TEMPCO – ppm/8C
50
0
08 6416 24 32 40 48 56
30
40
20
10
V
DD
= +3.0V
T
A
= –408C/+858C
V
A
= +2.0V
V
B
= 0V
Figure 9.␣ ∆ V
WB
/ ∆ T Potentiometer
Mode Tempco
DIGITAL INPUT CODE – Decimal
R
INL
ERROR – LSB
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
V
DD
= +3.0V
T
A
= –558C
T
A
= +858C
T
A
= +258C
Figure 4. Resistance Step Position
␣ ␣ Nonlinearity Error vs. Code
DIGITAL INPUT CODE – Decimal
INL NONLINEARITY ERROR – LSB
0.25
–0.25
08 6416 24 32 40 48 56
0.2
0.05
0
–0.1
–0.2
0.15
0.1
–0.05
–0.15
–558C
+858C
+258C
V
DD
= +3.0V
␣␣␣ Figure 7. Potentiometer Divider
␣ ␣ Nonlinearity Error vs. Code
CODE – Decimal
RHEOSTAT MODE TEMPCO – ppm/8C
120
0
08 64
16 24 32 40 48 56
80
100
60
40
20
V
DD
= +3.0V
T
A
= –408C/+858C
V
A
= NO CONNECT
R
WB
MEASURED
Figure 10. ∆ R
WB
/ ∆ T Rheostat Mode
Tempco