AD8131
12
9
12
9
V
V
= 200mV p-p
= ؎5V
V
= 200mV p-p
OUT
OUT
S
1500⍀
SO
V
= ؎5V
S
6
3
6
3
750⍀
750⍀
49.9⍀
24.9⍀
R
,dm = 200⍀
AD8131
L
V
= 5V
SOIC
100
S
0
0
1500⍀
–3
–3
1
10
1000
1
10
100
1000
FREQUENCY – MHz
FREQUENCY – MHz
Figure 2. Basic Test Circuit
Figure 3. Small Signal Frequency
Response
Figure 4. Small Signal Frequency
Response
12
9
12
V
V
= 2V p-p
= ؎5V
OUT
V
= 2V p-p
OUT
S
9
6
1500⍀
AD8131
1500⍀
2:1 TRANSFORMER
SO
V
= ؎5V
S
750⍀
750⍀
300⍀
300⍀
HPF
6
3
LPF
Z
= 50⍀
IN
49.9⍀
24.9⍀
SOIC
3
V
= 5V
S
0
0
–3
–3
1
10
100
1000
1
10
100
1000
FREQUENCY – MHz
FREQUENCY – MHz
Figure 5. Large Signal Frequency
Response
Figure 6. Large Signal Frequency
Response
Figure 7. Harmonic Distortion Test
Circuit (RL,dm = 800 Ω)
–50
–55
–40
V
= ؎5V
R ,dm = 800⍀
HD3 (V = ؎5V)
S
R ,dm = 800⍀
S
L
L
R ,dm = 800⍀
V
,dm = 1V p-p
V
,dm = 2V p-p
L
OUT
OUT
–50
–60
–65
–75
–85
–60
–70
–80
HD3 (V = 3V)
HD3 (F = 20MHz)
S
HD3 (V = 5V)
S
–70
HD3 (V = 5V)
S
HD2 (F = 20MHz)
–80
HD2 (V = 3V)
HD2 (V = ؎5V)
S
S
–95
–105
–115
–90
–100
–110
–90
HD2 (V = 5V)
HD2 (V = 5V)
S
S
–100
–110
HD3 (F = 5MHz)
HD2 (F = 5MHz)
0
1
2
3
4
5
6
0
10
20
30
40
50
60
70
0
10
20
30
40
50
60
70
DIFFERENTIAL OUTPUT VOLTAGE – V p-p
FREQUENCY – MHz
FREQUENCY – MHz
Figure 10. Harmonic Distortion vs.
Differential Output Voltage
Figure 8. Harmonic Distortion vs.
Frequency
Figure 9. Harmonic Distortion vs.
Frequency
REV. 0
–5–