Typical Performance Characteristics–AD8138
Unless otherwise noted, GAIN = 1, RG = RF = RL,dm = 499 ⍀, TA = +25؇C; Refer to Figure 1 for test setup.
6
6
0.5
V
C
= 0.2V p-p
= 0pF
V
V
= ؎5V
= 0.2V p-p
V
V
= ؎5V
= 0.2V p-p
IN
S
S
F
IN
IN
3
3
0.3
0.1
C
= 0pF
F
V
= +5V
C = 0pF
F
S
0
0
V
= ؎5V
S
C
= 1pF
F
–3
–6
–9
–3
–6
–9
–0.1
–0.3
–0.5
C
= 1pF
F
10
100
1000
10
100
1000
10
FREQUENCY – MHz
100
1
1
1
FREQUENCY – MHz
FREQUENCY – MHz
Figure 2. Small Signal Frequency
Response
Figure 3. Small Signal Frequency
Response
Figure 4. 0.1 dB Flatness vs.
Frequency
30
20
10
6
6
V
= ؎5V
S
V
V
= 2V p-p
= ؎5V
V
C
= 2V p-p
= 0pF
IN
S
IN
C
V
= 0pF
F
F
= 0.2V p-p
,dm
OUT
G = 10, R = 4.99k⍀
3
0
3
0
F
R
= 499⍀
V
= +5V
G
S
C
= 0pF
F
G = 5, R = 2.49k⍀
F
V
S
= ؎5V
G = 2, R = 1k⍀
C
= 1pF
F
F
–3
–6
–9
–3
–6
–9
G = 1, R = 499⍀
F
0
–10
10
100
1000
10
100
1000
10
100
1000
1
1
1
FREQUENCY – MHz
FREQUENCY – MHz
FREQUENCY – MHz
Figure 5. Large Signal Frequency
Response
Figure 6. Large Signal Frequency
Response
Figure 7. Small Signal Frequency
Response for Various Gains
–50
–30
–40
V
= 2V p-p
V
= 2V p-p
,dm
V
= 4V p-p
,dm
,dm
OUT
OUT
OUT
R
= 800⍀
R
= 800⍀
R
= 800⍀
L
L
L
–50
–60
–60
–70
–80
–90
–40
–50
–60
–70
–80
–90
–100
F
= 20MHz
O
HD3(V = +5V)
S
HD2(V = +5V)
HD2(V = +5)
S
S
–70
HD2(V = ؎5V)
HD3(V = +5)
S
S
HD2(V = +5V)
S
–80
HD2(V = ؎5V)
S
–90
–100
–110
–120
HD3(V = ؎5)
S
HD3(V = +5V)
S
–100
–110
HD2(V = ؎5)
HD3(V = ؎5V)
HD3(V = ؎5V)
S
S
S
0
10
20
30
40
50
60
70
–4
–3
–2
V
–1
0
1
2
3
4
0
10
20
30
40
50
60
70
FUNDAMENTAL FREQUENCY – MHz
DC OUTPUT – Volts
FUNDAMENTAL FREQUENCY – MHz
OCM
Figure 8. Harmonic Distortion vs.
Frequency
Figure 9. Harmonic Distortion vs.
Frequency
Figure 10. Harmonic Distortion vs.
VOCM
REV. A
–5–
ADI [ ADI ]
