
AD8145
Rev. A | Page 10 of 24
3
–7
1
1000
FREQUENCY (MHz)
GA
IN
(
d
B
)
10
100
2
1
0
–1
–2
–3
–4
–5
–6
VOUT = 0.2V p-p
G = 2
G = 1
06
30
7-
0
10
Figure 10. Small Signal Frequency Response at Various Gains
0.5
–0.5
1
1000
FREQUENCY (MHz)
GA
IN
(
d
B
)
10
100
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
VOUT = 2V p-p
G = 2, VS = +5V
G = 2, VS = ±5V
G = 1, VS = ±5V
G = 1, VS = +5V
06
30
7-
0
11
Figure 11. 0.1 dB Flatness for Various Power Supplies and Gains
110
10
0.1
1000
FREQUENCY (MHz)
CO
M
O
N
-M
O
DE
RE
JE
CT
IO
N
(d
B)
1
10
100
90
80
70
60
50
40
30
20
VS = +5V
VS = ±5V
06
30
7-
0
12
Figure 12. Common-Mode Rejection vs. Frequency at Various Supplies
3
–7
1
1000
FREQUENCY (MHz)
GA
IN
(
d
B
)
10
100
2
1
0
–1
–2
–3
–4
–5
–6
G = 2
G = 1
VOUT = 2V p-p
06
30
7-
0
13
Figure 13. Large Signal Frequency Response at Various Gains
1000
10
0.01
100000
FREQUENCY (kHz)
IN
PU
T
V
O
L
T
A
G
E
N
O
ISE
(
n
V
/
H
z
)
0.1
1
10
100
1000
10000
100
06
30
7-
0
46
Figure 14. Input Referred Voltage Noise vs. Frequency
4
–4
–5
5
DIFFERENTIAL INPUT VOLTAGE (V)
OU
TP
U
T
V
O
LT
A
G
E
(
V
)
3
2
1
0
–1
–2
–3
–4
–3
–2
–1
0123
4
RL = OPEN CIRCUIT
G = 1
VS = ±5V
06
30
7-
0
47
Figure 15. Differential Input Operating Range