Datasheet

AD8021
Rev. F | Page 24 of 28
OBE
0.1 100010 100
FREQUENCY (MHz)
GAIN (dB)
18
16
14
12
10
8
6
4
2
0
499
Ω
499 Ω
1k Ω
49.9 Ω
49.9 Ω
C
C
33pF
FET
PR
–V
S
R
SNUB
+V
S
5
6
1.0
01888-070
C
C
= 7pF;
R
SNUB
= 0 Ω
C
C
= 8pF;
R
SNUB
= 0 Ω
C
C
= 8pF;
R
SNUB
= 17.4 Ω
R
L
Figure 70. Peaking vs. R
SNUB
and C
C
for C
L
= 33 pF
20
18
16
14
12
10
8
6
4
2
0
CAPACITIVE LOAD (pF)
0 5 10 20 25 30 35 40 45 5015
R
SNUB
(Ω)
01888-071
Figure 71. Relationship of R
SNUB
vs. CB
L
for 2 dB Peaking at a Gain of +2