Datasheet

AD5227
Rev. B | Page 8 of 16
1
0.1
–40 –20 0 20 40 60 10080
04419-0-015
TEMPERATURE (°C)
SUPPLY CURRENT (
μ
A)
V
DD
= 5.5V
Figure 12. Supply Current vs. Temperature
1
0.1
–40 –20 0 20 40 60 10080
04419-0-016
TEMPERATURE (°C)
NOMINAL RESISTANCE, R
AB
(k
Ω
)
V
DD
= 5.5V
R
AB
= 50kΩ
R
AB
= 100kΩ
R
AB
= 10kΩ
Figure 13. Nominal Resistance vs. Temperature
120
0
20
40
60
80
100
–40 –20 0 20 40 60 10080
04419-0-017
TEMPERATURE (°C)
WIPER RESISTANCE, R
W
(Ω)
V
DD
= 5.5V
V
DD
= 2.7V
Figure 14. Wiper Resistance vs. Temperature
20
–20
–15
–10
–5
0
5
10
15
0 8 16 24 32 40 48 56 64
04419-0-018
CODE (Decimal)
RHEOSTAT MODE TEMPCO (ppm/°C)
10kΩ
50kΩ
100kΩ
V
DD
= 5.5V
Figure 15. Rheostat Mode Tempco ΔR
WB
/ΔT vs. Code
20
–20
–15
–10
–5
0
5
10
15
0 8 16 24 32 40 48 56 64
04419-0-019
CODE (Decimal)
POTENTIOMETER MODE TEMPCO (ppm/°C)
10kΩ
50kΩ
100kΩ
V
DD
= 5.5V
Figure 16. Potentiometer Mode Tempco ΔR
WB
/ΔT vs. Code
6
–54
–48
–42
–36
–30
–24
–18
–12
–6
0
1k 10k 1M
START 1 000.000Hz STOP 1 000 000.000Hz
REF LEVEL
0dB
/DIV
6.0dB
MARKER
MAG (A/R)
461 441.868Hz
–8.957dB
100k
04419-0-042
dB
T
A
= 25°C
V
DD
= 5.5V
V
A
= 50mV rms
32 STEPS
16 STEPS
8 STEPS
4 STEPS
2 STEPS
1 STEP
Figure 17. Gain vs. Frequency vs. Code, R
AB
= 10 kΩ