Datasheet

AD8352
Rev. B | Page 9 of 20
50
40
30
20
15
45
35
25
10
5.0
4.0
3.0
2.0
1.5
4.5
3.5
2.5
1.0
0 50 100 150 200 250 300 350 400 450 500
05728-049
NOISE FIGURE (dB), OIP3 (dBm)
FREQUENCY (MHz)
A
V
= 10dB
A
V
= 10dB
A
V
= 6dB
A
V
= 10dB
A
V
= 15dB
SPECTRAL NOISE DENSITY RTI (nV/ Hz)
OIP3
NOISE FIGURE
Figure 10. Noise Figure, OIP3, and Spectral Noise Density vs.
Frequency, 2 V p-p Composite, R
L
= 200 Ω
500MHz
380MHz
240MHz
190MHz
70MHz
140MHz
100MHz
45
40
35
30
25
20
0 10050 200 300150 250 350 400
05728-050
OIP3 (dBm)
GAIN SETTING RESISTOR (Ω)
Figure 11. Output IP3 (OIP3) vs. R
G
for Multiple Frequencies, R
L
= 200 Ω
–
60
–90
FREQUENCY (MHz)
HARMONIC DISTORTION (dBc)
–65
–70
–75
–80
–85
220 260 300 340 380 420 460 500
> 300MHz NO C
D
OR R
D
USED
HD3
2V p-p
HD2
2V p-p
HD3
1V p-p
05728-009
Figure 12. Third-Order Harmonic Distortion (HD3) vs. Frequency,
A
V
= 10 dB, R
L
= 200 Ω
500MHz
380MHz
240MHz
190MHz
140MHz
70MHz
100MHz
16.5
16.0
15.5
15.0
14.0
14.5
13.5
13.0
0 10050 200 300150 250 350 450400
05728-051
OUTPUT P1dB (dBm)
GAIN SETTING RESISTOR (Ω)
Figure 13. Output 1 dB Compression Point (P1dB) vs.
R
G
for Multiple Frequencies, R
L
= 200 Ω
–
60
–110
0 500
FREQUENCY (MHz)
HARMONIC DISTORTION (dBc)
–65
–70
–75
–80
–85
–90
–95
–100
–105
50 100 150 200 250 300 350 400 450
HD3
HD2
05728-005
Figure 14. Harmonic Distortion vs. Frequency for 2 V p-p into R
L
= 1 kΩ,
A
V
= 10 dB, 5 V Supply, R
G
= 180 Ω, R
D
= 6.8 kΩ, C
D
= 0.1 pF
–
50
–110
0 400
FREQUENCY (MHz)
HARMONIC DISTORTION (dBc)
–60
–70
–80
–90
–100
50 100 150 200 250 300 350
HD2
HD3
05728-007
Figure 15. Harmonic Distortion vs. Frequency for 2 V p-p into R
L
= 200 Ω,
A
V
= 10 dB, R
G
= 115 Ω, R
D
= 4.3 kΩ, C
D
= 0.2 pF