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AD5220 Datasheet(PDF) 5 Page - Analog Devices

Part No. AD5220
Description  Increment/Decrement Digital Potentiometer
Download  12 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5220 Datasheet(HTML) 5 Page - Analog Devices

 
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AD5220
–5–
REV. 0
CODE – Decimal
60
–10
0
16
128
32
48
64
80
96
112
53
32
25
11
–3
46
39
18
4
–55 C < TA < +85 C
VDD = +5.5V
50k
AND 100k
VERSION
10k
VERSION
Figure 13.
∆V
WB/∆T Potentiometer
Mode Tempco (10 k
Ω and 50 kΩ)
FREQUENCY – Hz
6
1k
1M
10k
100k
0
–6
–12
–18
–24
–30
–36
–42
–48
–54
00H
+
2.5V
W
A
B
OP42
+
DATA = 40H
VDD = +5V
VIN = VA = 100mV rms
VB = +2.5V
40H
20H
10H
08H
04H
02H
01H
Figure 16. 50 k
Ω Gain vs. Frequency
vs. Code
VWB
VDD = +5.5V
VA = +5.5V
VB = 0V
f = 100kHz
DATA
40H v 3FH
150mV
100mV
50mV
0mV
5V
0V
CLK
TIME 500ns / DIV
Figure 19. Midscale Transition Glitch
CODE – Decimal
60
–10
0
16
128
32
48
64
80
96
112
53
32
25
11
–3
46
39
18
4
–55 C < TA < +85 C
VDD = +5.5V
RWB MEASURED
VA = NO CONNECT
50k
AND 100k
VERSION
10k
VERSION
Figure 14.
∆R
WB/∆T Rheostat
FREQUENCY – Hz
6
1k
1M
10k
100k
0
–6
–12
–18
–24
–30
–36
–42
–48
–54
+
2.5V
W
A
B
OP42
+
DATA = 40H
VDD = +5V
VIN = VA = 100mV rms
VB = +2.5V
00H
20H
10H
08H
04H
02H
01H
40H
Figure 17. 100 k
Ω Gain vs. Fre-
quency vs. Code
FREQUENCY – Hz
0.0001
10
TA = +25 C
VDD = +5.0V
OFFSET GND = +2.5V
RAB = 10k
NONINVERTING
TEST CKT 32
INVERTING
TEST CKT 31
0.001
0.01
0.10
1.00
100
1k
10k
100k
Figure 20. Total Harmonic Distortion
Plus Noise vs. Frequency
FREQUENCY – Hz
6
1k
1M
10k
100k
0
–6
–12
–18
–24
–30
–36
–42
–48
–54
DATA = 40H
VDD = +5V
VIN = VA = 100mV rms
VB = +2.5V
+
2.5V
W
A
B
OP42
+
40H
20H
10H
08H
04H
02H
01H
00H
Figure 15. 10 k
Ω Gain vs. Frequency
vs. Code
VWB
VDD = +5.5V
VA = VB = 0V
f = 100kHz
20mV/
DIV
TIME 2 s / DIV
Figure 18. Digital Feedthrough
FREQUENCY – Hz
–5.8
–6.8
10
100
1M
–6.3
1k
10k
100k
–5.9
–6.0
–6.1
–6.2
–6.4
–6.5
–6.6
–6.7
50k
10k
DATA = 40H
VDD = +5V
VIN = VA = 50mV rms
VB = +2.5V
100k
+
2.5V
W
A
B
OP42
+
Figure 21. Normalized Gain Flatness
vs. Frequency


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