Datasheet
Data Sheet
AD8099
Rev. D | Page 19 of 28
PERFORMANCE VS. COMPONENT VALUES
The influence that each component has on the AD8099
frequency response can be seen in Figure 67 and Figure 68. In
Figure 67 and Figure 68, all component values are held
constant, except for the individual component shown, which is
varied. For example, in the R
S
performance plot of Figure 68, all
components are held constant except R
S
, which is varied from
0 Ω to 50 Ω.; and clearly indicates that R
S
has a major influence
on peaking and bandwidth of the AD8099.
1
8
4
7
5
3
6
2
AD8099
C5
0.1F
C
C
C
F
C1
C4
10F
C2
10F
C3
0.1F
R
C
R
F
R
G
R
S
R1
+V
S
–V
S
V
OU
T
SOIC PINOUT SHOWN
V
IN
DISABLE
04511-0-117
FREQUENCY (MHz)
CLOSED-LOOP GAIN (dB)
–2
3000
04511-0-020
1 10 100 1000
9
8
7
6
5
4
3
2
1
0
–1
V
S
= ±5V
G = +2
R
LOAD
= 1k
SOIC PACKAGE
C1 = 0pF
C1 = 2pF
C1 = 1.5pF
FREQUENCY (MHz)
CLOSED-LOOP GAIN (dB)
–1
3000
04511-0-024
1 10 100 1000
10
9
8
7
6
5
4
3
2
1
0
C
C
= 3pF
C
C
= 4pF
C
C
= 5pF
V
S
= ±5V
G = +2
R
LOAD
= 1k
SOIC PACKAGE
FREQUENCY (MHz)
CLOSED-LOOP GAIN (dB)
–1
3000
04511-0-030
1
10
8
9
7
6
5
4
3
2
1
0
V
S
= ±5V
G = +2
R
LOAD
= 1k
SOIC PACKAGE
10 100 1000
R
C
= 50
R
C
= 35
R
C
= 20
Figure 67. Frequency Response for Various Values of C1, C
C
, R
C