Datasheet

AD5272/AD5274 Data Sheet
Rev. D | Page 14 of 28
0
5
10
15
20
25
30
35
40
45
50
RHEOSTAT MODE TEMPCO (ppm/°C)
0
256 512 768 1023
0 64 128 192 255
AD5272
AD5274
CODE (Decimal)
08076-019
20kΩ
50kΩ
100kΩ
V
DD
/V
SS
= 5V/0V
Figure 24. Tempco ΔR
WA
/ΔT vs. Code
–60
–
50
–
40
–10
–30
–20
0
1k
10k
100k 1M 10M
GAIN (dB)
FREQUENCY (Hz
)
0x200 (0x80)
0x100 (0x40)
0x080 (0x20)
0x040 (0x10)
0x020 (0x08)
0x010 (0x04)
0x008 (0x02)
0x004 (0x01)
0x002
0x001
AD5272 (AD5274)
08076-031
Figure 25. 20 kΩ Gain vs. Code vs. Frequency
–60
–50
–
40
–10
–
30
–
20
0
1k
10k
100k 1M 10M
GAIN (dB)
FREQUENCY (Hz
)
0x200 (0x80)
0x100 (0x40)
0x080 (0x20)
0x040 (0x10)
0x020 (0x08)
0x010 (0x04)
0x008 (0x02)
0x004 (0x01)
0x002
0x001
AD5272 (AD5274)
08076-032
Figure 26. 50 kΩ Gain vs. Code vs. Frequency
0
1
2
3
4
5
6
7
THEORETICAL I
WA_MAX
(mA)
CODE (Decimal)
0 256 512 768 1023
0 64 128 192 255
AD5272
AD5274
V
DD
/V
SS
= 5V/0V
08076-028
20kΩ
50kΩ
100kΩ
Figure 27. Theoretical Maximum Current vs. Code
–60
–70
–50
–40
–10
–30
–20
0
1k
10k
100k
1M 10M
GAIN (dB)
FREQUENCY (Hz
)
0x200 (0x80)
0x100 (0x40)
0x080 (0x20)
0x040 (0x10)
0x020 (0x08)
0x010 (0x04)
0x008 (0x02)
0x004 (0x01)
0x002
0x001
AD5272 (AD5274)
08076-041
Figure 28. 100 kΩ Gain vs. Code vs. Frequency
PSRR (dB)
FREQUENCY (Hz)
100 1k
10k 100k
V
DD
/V
SS
= 5V/0V
CODE = HALF SCALE
08076-024
0
–90
–80
–70
–60
–50
–40
–30
–20
–10
50kΩ
100kΩ
20kΩ
Figure 29. PSRR vs. Frequency