Datasheet

ADA4938-1/ADA4938-2
Rev. A | Page 11 of 28
1 10 100 1000
6
–12
–9
–6
–3
3
0
NORMALIZED GAIN (dB)
FREQUENCY (MHz)
G = +1
G = +2
G = +3.16
G = +5
06592-117
Figure 19. Small Signal Frequency Response for Various Gains, R
F
= 402 Ω,
V
S
= 5 V, V
OUT
= 0.1 V p-p
3
–12
–9
–6
–3
0
1 10 100 1000
GAIN (dB)
FREQUENCY (MHz)
V
S
= +5V
V
S
= ±5V
06592-118
Figure 20. V
OUT, cm
Small Signal Frequency Response, V
OUT
= 0.1 V p-p
1 10 100 1000
1.0
–1.0
–0.9
–0.8
–0.7
–0.6
–0.5
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
NORMALIZED GAIN (dB)
FREQUENCY (MHz)
R
L, dm
= 1kΩ
R
L, dm
= 100Ω
R
L, dm
= 200Ω
06592-119
Figure 21. 0.1 dB Flatness Response for Various Loads, ADA4938-1,
V
OUT
= 0.1 V p-p
1 10 100 1000
6
3
0
–3
–6
–9
–12
NORMALIZED GAIN (dB)
FREQUENCY (MHz)
G = +1
G = +2
G = +3.16
G = +5
06592-120
Figure 22. Large Signal Frequency Response for Various Gains, R
F
= 402 Ω,
V
S
= 5 V
3
–12
–9
–6
–3
0
1 10 100 1000
GAIN (dB)
FREQUENCY (MHz)
V
S
= +5V
V
S
= ±5V
06592-121
Figure 23. V
OUT, cm
Large Signal Frequency Response
1 10 100 1000
1.5
1.4
1.3
1.2
–0.5
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
GAIN (dB)
FREQUENCY (MHz)
R
L, dm
= 1kΩ
R
L, dm
= 100Ω
R
L, dm
= 200Ω
06592-122
Figure 24. 0.1 dB Flatness Response for Various Loads, ADA4938-2,
V
OUT
= 0.1 V p-p