THS7530 Datasheet, PDF (8/19 Pages) Texas Instruments – HIGH-SPEED, FULLY DIFFERENTIAL, CONTINUOUSLY VARIABLE GAIN AMPLIFIER

THS7530
SLOS405A DECEMBER 2002– REVISED APRIL 2003
NOISE FIGURE
vs
FREQUENCY
35
Gain = 20 dB
30
25
Gain = 30 dB
20
15
Gain = 40 dB
10
Terminated Input
5
0
50 100 150 200 250 300
f – Frequency – MHz
Figure 5
TOTAL INPUT VOLTAGE NOISE
vs
FREQUENCY
100
10
1
10 100 1 k 10 k 100 k 1 M 10 M 100 M
f – Frequency – Hz
OUTPUT INTERCEPT POINT
vs
FREQUENCY
60
55
50
OIP2
45
40
35
30
25
OIP3
20
15 Taken at load. Add
3 dB to refer to amplifier output
10
0
50 100 150 200 250 300
f – Frequency – MHz
Figure 6
INTERMODULATION DISTORTION
vs
FREQUENCY
–45
–50
IMD2
–55
–60
IMD3
–65
–70
–75
–80
0
VG+ = 1 V, VO = 1 VPP
(Composite), RL = 400 Ω
50
100
150
200
f – Frequency – MHz
Figure 8
0
–10
–20
–30
–40
–50
–60
–70
0.1
S-PARAMETERS
vs
FREQUENCY
S22
S11
S12
1
10
f – Frequency – MHz
Figure 11
100 300
Figure 9
DIFFERENTIAL INPUT IMPEDANCE
OF MAIN AMPLIFIER
vs
FREQUENCY
10
9
8
7
6
5
4
3
2
1
0
0.1
1
10
100
1000
f – Frequency – MHz
Figure 12
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1 dB COMPRESSION POINT
vs
FREQUENCY
15
14 ^{Taken at load. Add 3 dB to refer}
13 ^{to amplifier output}
12
11
10
9
8
7
6
5
4
3
2
1
0
0
50 100 150 200 250 300
f – Frequency – MHz
Figure 7
HARMONIC DISTORTION
vs
FREQUENCY
–50
–52 ^{RL = 400 Ω}
VO = 1 Vpp,
–54 VG+ = 1 V
–56
–58
–60
HD3
–62
–64
HD2
–66
–68
–70
0
10 20 30 40 50 60 70
f – Frequency – MHz
Figure 10
DIFFERENTIAL OUTPUT IMPEDANCE
OF MAIN AMPLIFIER
vs
FREQUENCY
50
45
40
35
30
25
20
15
10
5
0
1
10
100
f – Frequency – MHz
Figure 13
1000
8