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AD5293 Data Sheet
Rev. E | Page 14 of 24
700
600
500
400
300
200
100
0
RHEOSTAT MODE TEMPCO (ppm/°C)
07675-023
0 256 512 768 1023
CODE (Decimal)
50kΩ
20kΩ
100kΩ
V
DD
= 30V,
V
SS
= 0V
Figure 24. Rheostat Mode Tempco ΔRWB/ΔT vs. Code
0
–50
–45
–40
–35
–30
–25
–20
–15
–10
–5
1M
100k
10k
1k
100
10
07675-025
GAIN (dB)
FREQUENCY
(Hz)
0x200
0x100
0x080
0x040
0x020
0x010
0x008
0x004
0x002 0x001
Figure 25. 20 kΩ Gain vs. Frequency vs. Code
–50
–40
–30
–10
0
10 1M100k
10k1k100
GAIN (dB)
FREQUENCY (Hz)
0x200
0x080
0x020
0x010
0x004
0x002
0x001
–20
–60
07674-200
0x040
0x008
0x100
Figure 26. 50 kΩ Gain vs. Frequency vs. Code
700
600
500
400
300
200
100
0
POTENTIOMETER MODE TEMPCO (ppm/°C)
07675-024
0
256
512
768 1023
CODE (Decimal)
V
DD
= 30V
V
SS
= 0V
50kΩ
20kΩ
100kΩ
Figure 27. Potentiometer Mode Tempco ΔRWB/ΔT vs. Code
–60
–50
–40
–30
–10
0
10 1M
100k10k1k100
GAIN (dB)
FREQUENCY (Hz)
0x200
0x100
0x080
0x040
0x020
0x010
0x008
0x004
0x002
0x001
–20
–70
07675-201
Figure 28. 100 kΩ Gain vs. Frequency vs. Code
–70
–60
–50
–40
–30
–20
–10
0
100 1k 10k
FREQUENCY (Hz)
100k 1M
100kΩ
20kΩ
50kΩ
07675-026
PSRR (dB)
Figure 29. Power Supply Rejection Ratio (PSRR) vs. Frequency
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