AD8051/AD8052/AD8054
Rev. J | Page 12 of 24
FUNDAMENTAL FREQUENCY (MHz)
20
–30
–110
–70
–80
–90
–100
–50
–60
–40
TOTAL HARMONIC DISTORTION (dBc)
12345678910
V
OUT
= 2V p-p V
S
= 3V, G = –1
R
F
= 2kΩ, R
L
= 100Ω
V
S
= 5V, G = +2
R
F
= 2kΩ, R
L
= 100Ω
V
S
= 5V, G = +1
R
L
= 100Ω
V
S
= 5V, G = +1
R
L
= 2kΩ
V
S
= 5V, G = +2
R
F
= 2kΩ, R
L
= 2kΩ
01062-019
Figure 19. Total Harmonic Distortion
OUTPUT VOLTAGE (V p-p)
05.04.5
30
–40
–120
–80
–90
–100
–110
–60
–70
–50
–130
–140
WORST HARMONIC (dBc)
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
V
S
= 5V
R
L
= 2kΩ
G = +2
10MHz
5MHz
1MHz
01062-020
Figure 20. Worst Harmonic vs. Output Voltage
0.05
0.00
–0.05
–0.10
–0.15
–0.20
–0.25
0.10
MODULATING RAMP LEVEL (IRE)
0.10
–0.06
0.08
0.06
0.04
0.02
0.00
–0.02
–0.04
NTSC SUBSCRIBER (3.58MHz)
DIFFERENTIAL
GAIN ERROR (%)
DIFFERENTIAL
PHASE ERROR (Degrees)
0 102030405060708090100
0 102030405060708090100
R
L
= 150Ω
R
L
= 1kΩ
R
L
= 150Ω
R
L
= 1kΩ
V
S
= 5V, G = +2
R
F
= 2kΩ, R
L
AS SHOWN
V
S
= 5V, G = +2
R
F
= 2kΩ, R
L
AS SHOWN
01062-021
Figure 21. AD8051/AD8052 Differential Gain and Phase Errors
1000
100
1
10
10M100
VOLTAGE NOISE (nV/√Hz)
1k 10k 100k
1M
10
FREQUENCY (Hz)
V
S
= 5V
1062-022
Figure 22. Input Voltage Noise vs. Frequency
100
10
0.1
1
10
10M100
CURRENT NOISE (pA/
Hz)
1k 10k 100k
1M
FREQUENCY (Hz)
V
S
= 5V
01062-023
Figure 23. Input Current Noise vs. Frequency
0.10
–0.10
0.05
0.00
–0.05
0.2
0.1
0.0
–0.1
–0.2
–0.3
0.3
MODULATING RAMP LEVEL (IRE)
NTSC SUBSCRIBER (3.58MHz)
DIFFERENTIAL
GAIN ERROR (%)
DIFFERENTIAL
PHASE ERROR (Degrees)
R
L
= 150Ω
R
L
= 1kΩ
R
L
= 150Ω
R
L
= 1kΩ
V
S
= 5V, G = +2
R
F
= 2kΩ, R
L
AS SHOWN
V
S
= 5V, G = +2
R
F
= 2kΩ, R
L
AS SHOWN
1
ST
2
ND
3
RD
4
TH
5
TH
6
TH
7
TH
8
TH
9
TH
10
TH
11
TH
1
ST
2
ND
3
RD
4
TH
5
TH
6
TH
7
TH
8
TH
9
TH
10
TH
11
TH
01062-024
Figure 24. AD8054 Differential Gain and Phase Errors