ad5231 Analog Devices, Inc., ad5231 Datasheet - Page 10

• Manufacturer Part Number: ad5231
• Description: Nonvolatile Memory, 1024-position Digital Potentiometer
• Manufacturer: Analog Devices, Inc.

AD5231
–1
60
50
40
30
20
10
0.25
0.20
0.15
0.10
0.05
4
3
2
1
0
0
–40
0
0
0
V
T
V
V
DD
A
DD
SS
= 25°C
Figure 14. I
128
FULL-SCALE
= 2.7V, V
= 5V
= 0V
–20
Figure 13. I
Figure 12. Wiper On Resistance vs. Code
2
256
SS
0
DD
= 0V
CLOCK FREQUENCY (MHz)
DD
vs. Clock Frequency, R
TEMPERATURE (°C)
384
vs. Temperature, R
4
I
CODE (Decimal)
SS
I
SS
20
@ V
I
@ V
DD
I
512
DD
DD
@ V
DD
6
@ V
/V
/V
40
DD
SS
SS
DD
ZERO-SCALE
/V
640
= 2.7V/0V
MIDSCALE
= 5V/0V
SS
/V
SS
= 2.7V/0V
AB
8
60
= 5V/0V
AB
= 10 kΩ
768
= 10 kΩ
80
10
896
1024
100
12
Rev. C | Page 10 of 28
0.12
0.10
0.08
0.06
0.04
0.02
–10
–12
–14
–16
–10
–15
–20
–25
–30
–35
–40
–45
–50
Figure 17. Gain vs. Frequency vs. Code, R
–2
–4
–6
–8
–5
0
2
0
0.01
0
1k
1k
Figure 15. −3 dB Bandwidth vs. Resistance (Figure 32)
V
V
0x04
f
V
V
D = MIDSCALE
Figure 16. Total Harmonic Distortion vs. Frequency
–3dB
DD
A
CODE = 0x200
A
DD
= 1V rms
= 1mV rms
/V
f
/V
0x100
0x80
0x40
0x20
0x10
0x08
–3dB
SS
= 44kHz, R
0x02
SS
= ±2.5V
= ±2.5V
= 85kHz, R
0.1
10k
0x01
AB
10k
R
AB
= 100kΩ
100kΩ
AB
50kΩ
FREQUENCY (kHz)
FREQUENCY (Hz)
FREQUENCY (Hz)
= 10kΩ
= 50kΩ
100k
1
f
–3dB
100k
AB
= 37kHz, R
= 10 kΩ (Figure 32)
10
1M
AB
= 10kΩ
100
10M
1M