ADA4938-1/ADA4938-2
Rev. A | Page 9 of 28
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, +VS = 5 V, VS = 5 V, VOCM = 0 V, RT = 61.9 Ω, RG = RF = 200 Ω, G = +1, RL, dm = 1 kΩ, unless otherwise noted.
All measurements were performed with single-ended input and differential output, unless otherwise noted. For gains other than G = +1,
values for RF and RG are shown in Table 11. 3
0
–3
–6
–9
–12
1
10
100
1000
N
OR
M
A
L
IZE
D
GA
IN
(
d
B
)
FREQUENCY (MHz)
G = +1
G = +2
G = +3.16
G = +5
06
59
2-
1
05
Figure 7. Small Signal Frequency Response for Various Gains, VOUT = 0.1 V p-p
3
0
–3
–6
–9
–12
1
10
100
1000
GA
IN
(
d
B
)
FREQUENCY (MHz)
VS = +5V
VS = ±5V
06
59
2-
1
06
Figure 8. Small Signal Response for Various Supplies, VOUT = 0.1 V p-p
3
0
–3
–6
–9
–12
1
10
100
1000
N
OR
M
A
L
IZE
D
GA
IN
(
d
B
)
FREQUENCY (MHz)
–40°C
+25°C
+85°C
06
59
2-
1
07
Figure 9. Small Signal Frequency Response for
Various Temperatures, VOUT = 0.1 V p-p
3
0
–3
–6
–9
–12
1
10
100
1000
N
OR
M
A
L
IZE
D
GA
IN
(
d
B
)
FREQUENCY (MHz)
G = +1
G = +2
G = +3.16
G = +5
06
59
2-
1
08
Figure 10. Large Signal Frequency Response for Various Gains
3
0
–3
–6
–9
–12
1
10
100
1000
GA
IN
(
d
B
)
FREQUENCY (MHz)
VS = +5V
VS = ±5V
06
59
2-
1
09
Figure 11. Large Signal Response for Various Supplies
3
0
–3
–6
–9
–12
1
10
100
1000
N
OR
M
A
L
IZE
D
GA
IN
(
d
B
)
FREQUENCY (MHz)
–40°C
+25°C
+85°C
06
59
2-
1
10
Figure 12. Large Signal Frequency Response for Various Temperatures