Analog Devices AD5235 Manual page 10

AD5235
36
V = 3V
DD
34
V = 0V
SS
T = 25°C
A
32
30
28
26
24
22
20
18
16
0 200 400
CODE (Decimal)
Figure 11. Wiper On Resistance vs. Code
4
3
2
1
0
I @ V /V
SS DD
–1
–40 –20 0 20
CODE (Decimal)
Figure 12. I vs. Temperature, R
DD
0.25
V /V = 5V/0V
DD SS
R = 25kΩ
AR
0.20
MIDSCALE
0.15
0.10
0.05
0.00
0 2M 4M
FREQUENCY (Hz)
Figure 13. I vs. Clock Frequency, R
DD
600 800 1000 1200
I @ V /V = 5V/0V
DD DD SS
I @ V /V = 5V/0V
SS DD SS
I @ V /V = 2.7V/0V
DD DD SS
= 2.7V/0V
SS
40 60 80 100
= 25 kΩ
AB
FULL SCALE
ZERO SCALE
6M 8M 10M 12M
= 25 kΩ
AB
0.28
V /V
DD SS
V = 1V rms
0.24
A
0.20
0.16
0.12
0.08
0.04
0.00
0.01k
Figure 14. Total Harmonic Distortion vs. Frequency
3
0
–3
–6
–9
V /V
DD SS
V = 1V rms
A
D = MIDSCALE
–12
1k
Figure 15. −3 dB Bandwidth vs. Resistance ( Figure 31)
0
CODE 0x200
–10
0x100
0x080
–20
0x040
0x020
–30
0x010
0x008
–40
0x004
0x002
–50
0x001
–60
1k
Figure 16. Gain vs. Frequency vs. Code, R
Rev. B | Page 10 of 28
= ±2.5V
R = 250kΩ
AB
25kΩ
0.1k 1k 10k
FREQUENCY (Hz)
R = 25kΩ
AB
R = 250kΩ
AB
f = 12kHz
–3dB
f = 125kHz
–3dB
= ±2.5V
10k 100k
FREQUENCY (Hz)
10k 100k
FREQUENCY (Hz)
= 25 kΩ ( Figure 31)
AB
100k
1M
1M