Datasheet

AD5258
Rev. 0 | Page 10 of 24
250
–150
–100
–50
0
50
100
150
200
0 8 16 24 65 40 48 56 64
05029-019
CODE (Decimal)
RHEOSTAT MODE TEMPCO (ppm/
°
C)
1k
10k
50k
100k
Figure 18. Rheostat Mode Tempco (ΔR
AB
×10
6
)/( R
AB
× ∆T) vs. Code
120
100
–20
0
20
40
60
80
0 8 16 24 65 40 48 56 64
05029-018
CODE (Decimal)
POTENTIOMETER MODE TEMPCO (ppm/
°
C)
1k
50k
10k
100k
Figure 19. Potentiometer Mode Tempco (ΔV
W
× 10
6
)/( V
W
× ΔT) vs. Code
350
300
0
50
100
150
200
250
–40 806040200–20
05029-047
TEMPERATURE (°C)
R
WB
@ 0x00
R
WB
@ V
DD
= 2.7V
R
WB
@ V
DD
= 5.5V
Figure 20. R
WB
vs. Temperature
120
100
80
60
40
20
0
–40 806040200–20
05029-050
TEMPERATURE (°C)
TOTAL RESISTANCE (k
Ω
)
10k Rt @ V
DD
= 5.5V
1k Rt @ V
DD
= 5.5V
50k Rt @ V
DD
= 5.5V
100k Rt @ V
DD
= 5.5V
Figure 21. Total Resistance vs. Temperature
05029-022
–54
–60
–48
–42
–36
–30
–24
–18
–12
–6
0
10k 100k 1M 10M 100M
GAIN (dB)
FREQUENCY (Hz)
20
H
10
H
08
H
04
H
02
H
01
H
Figure 22. Gain vs. Frequency vs. Code, R
AB
= 1 kΩ
05029-023
20
H
10
H
08
H
04
H
02
H
01
H
–54
–60
–48
–42
–36
–30
–24
–18
–12
–6
0
1k 10k 100k 1M 10M
GAIN (dB)
FREQUENCY (Hz)
Figure 23. Gain vs. Frequency vs. Code, R
AB
= 10 kΩ