AD8400/AD8402/AD8403
NORMALIZED GAIN FLATNESS – 0.1dB/DIV
10
SEE TEST CIRCUIT 33
CODE = 80
H
V
DD
= +5V
T
A
= +25°C
R = 10kΩ
I
DD
– SUPPLY CURRENT – mA
80
T
A
= +25°C
V
DD
= +5V DC
±
1V p-p AC
T
A
= +25°C
CODE = 80
H
C
L
= 10pF
V
A
= 4V, V
B
= 0V
60
1
PSRR – dB
V
DD
= +5V
0.1
40
R = 50kΩ
20
V
DD
= +3V
R = 100kΩ
0.01
SEE TEST CIRCUIT
FIGURE 32
5
10
100
10k
1k
100k
FREQUENCY – Hz
1M
0
1
2
3
4
INPUT LOGIC VOLTAGE – Volts
0
100
1k
10k
100k
FREQUENCY – Hz
1M
Figure 20. Normalized Gain Flat-
ness vs. Frequency
Figure 21. Supply Current vs. Logic
Input Voltage
Figure 22. Power Supply Rejection
vs. Frequency
12
6
0
–6
I
DD
– SUPPLY CURRENT – µA
1200
f
–3dB
= 700kHz, R = 10kΩ
1000
A – V
DD
= 5.5V
CODE = 55
H
B – V
DD
= 3.3V
CODE = 55
H
C – V
DD
= 5.5V
CODE = FF
H
D – V
DD
= 3.3V
CODE = FF
H
A
200
0
1k
100k
10k
FREQUENCY – Hz
1M
1k
10k
100k
1M
FREQUENCY – Hz
T
A
= +25°C
160
T
A
= +25°C
140
V
DD
= +2.7V
120
100
R
ON
–
Ω
80
60
B
40
C
D
10M
20
0
SEE TEST CIRCUIT
FIGURE 36
V
DD
= +5.5V
800
GAIN – dB
–12
–18
–24
–30
–36
–42
f
–3dB
= 71kHz, R = 100kΩ
600
f
–3dB
= 125kHz, R = 50kΩ
V
IN
= 100mV rms
V
DD
= +5V
R
L
= 1MΩ
400
0
1
2
3
V
DD
4
5
6
Figure 23. –3 dB Bandwidths
Figure 24. Supply Current vs.
Clock Frequency
Figure 25. AD8403 Incremental
Wiper ON Resistance vs. V
DD
100
1
V
DD
= +5V
GAIN – dB
0
–10
–20
I
A
SHUTDOWN CURRENT – nA
I
DD
– SUPPLY CURRENT –µA
LOGIC INPUT
VOLTAGE = 0, V
DD
0.1
PHASE – Degrees
0
–45
–90
V
DD
= +5V
T
A
= +25°C
WIPER SET AT
HALF-SCALE 80
H
10
V
DD
= +5.5V
0.01
V
DD
= +3.3V
100k 200k 400k
1M
2M
4M 6M 10M
1
–55 –35 –15
FREQUENCY – Hz
5 25 45 65 85 105 125
TEMPERATURE –
°C
0.001
–55 –35 –15
5 25 45 65 85 105 125
TEMPERATURE –
°C
Figure 26. 1 k
Ω
Gain and Phase
vs. Frequency
Figure 27. Shutdown Current vs.
Temperature
Figure 28. Supply Current vs.
Temperature
–10–
REV. B
AD [ ANALOG DEVICES ]
