Datasheet

AD8021
Rev. F | Page 11 of 28
FREQUENCY (Hz)
1M
GAIN (dB)
10M 100M
6.2
6.0
5.8
5.6
5.4
6.4
G = +2
V
S
= ±12V
V
S
= ±2.5V
01888-017
V
S
= ±5V
Figure 17. 0.1 dB Flatness vs. Frequency and Supply, V
OUT
= 1 V p-p,
R
L
= 150 Ω, Noninverting (See Figure 49)
FREQUENCY (Hz)
0.1M
DISTORTION (dBc)
1M
–40
–60
–90
–110
–130
–20
–30
–50
–70
–80
–100
–120
10M 20M
THIRD
SECOND
R
L
= 100Ω
R
L
= 1kΩ
01888-018
Figure 18. Second and Third Harmonic Distortion vs. Frequency and R
L
FREQUENCY (Hz)
100k
DISTORTION (dBc)
1M 20M
–40
–60
–90
–110
–130
–30
–50
–70
–80
–100
–120
10M
THIRD
SECOND
SECOND
SECOND
THIRD
V
S
= ±2.5V
V
S
= ±5V
V
S
= ±12V
01888-019
Figure 19. Second and Third Harmonic Distortion vs. Frequency and V
S
FREQUENCY (MHz)
9.5
P
OUT
(dBm)
10.5
–40
–60
–90
–110
–30
–50
–70
–80
–100
–120
–20
9.7 10.3
10.0
Δf = 0.2MHz
f
1
f
2
976Ω
53.6Ω 50Ω
P
OUT
01888-020
Figure 20. Intermodulation Distortion vs. Frequency
FREQUENCY (MHz)
0
THIRD-ORDER INTERCEPT (dBm)
10 20
45
30
25
40
35
20
50
V
S
= ±5V
V
S
= ±2.5V
515
01888-021
Figure 21. Third-Order Intercept vs. Frequency and Supply Voltage
1
DISTORTION (dBc)
–60
–90
–100
–70
–80
–120
–50
–110
THIRD
SECOND
SECOND
THIRD
V
OUT
(V p-p)
2345
6
R
L
= 100Ω
R
L
= 1kΩ
01888-022
Figure 22. Second and Third Harmonic Distortion vs. V
OUT
and R
L