Datasheet

_
+
THS4631
49.9 Ω
50 Ω Source
+15 V
953 Ω
499 Ω 499 Ω
−15 V
49.9 Ω
Test Data
Mesurement Point
50 Ω Test
Equipment
C
F
R
F
R
G
0
1
2
3
4
5
6
7
8
9
10
100 k 1 M 10 M 100 M 1 G
V
O
= 200 mV
PP
G = 2, R
F
= 499 Ω,
R
G
= 499 Ω
105 MHz
f − Frequency − Hz
Signal Gain − dB
C
F
= 5.6 pF
C
F
= 0 pF
C
F
= 8.2 pF
5.6
5.7
5.8
5.9
6
6.1
6.2
6.3
100 k 1 M 10 M 100 M
f − Frequency − Hz
Signal Gain − dB
C
F
= 8.2 pF
38 MHz
−10
0
10
20
30
40
50
100 k 1 M 10 M 100 M 1 G
G = 100, R
F
= 11.3 kΩ, R
G
= 115 Ω
V
O
= 200 mV
PP
G = 10, R
F
= 499 Ω,
R
G
= 54.9 Ω
G = 5, R
F
= 499 Ω,
R
G
= 124 Ω
G = 2, R
F
= 499 Ω,
R
G
= 499 Ω
G = 1, R
F
= 0 Ω
105 MHz
f − Frequency − Hz
Signal Gain − dB
−5
−4
−3
−2
−1
0
1
2
3
4
5
100 k 1 M 10 M 100 M 1 G
G = −1, R
F
= 499 Ω,
R
G
= 499 Ω
C
F
= 2.2 pF
C
F
= 0 pF
C
F
= 5.2 pF
V
O
= 200 mV
PP
f − Frequency − Hz
Signal Gain − dB
102 MHz
−10
−8
−6
−4
−2
0
2
4
100 k
1 M
10 M 100 M 1 G
THS4631
+15 V
R
L
R
ISO
−15 V
0 Ω
50 Ω
Source
G = 1,
R
F
= 0 Ω,
R
L
= 1 kΩ
R
ISO
= 50 Ω,
C
L
= 10 pF
R
ISO
= 30 Ω,
C
L
= 56 pF
f − Frequency − Hz
Signal Gain − dB
R
ISO
= 20 Ω,
C
L
= 100 pF
C
L
0
1
2
3
4
5
6
7
8
100 k 1 M 10 M 100 M 1 G
V
O
= 0.5 V
PP
V
O
= 2 V
PP
f − Frequency − Hz
Signal Gain − dB
V
O
= 5 V
PP
105 MHz
THS4631
www.ti.com SLOS451B –DECEMBER 2004– REVISED AUGUST 2011
TYPICAL CHARACTERISTICS (±15 V GRAPHS)
T
A
= 25°C, G = 2, R
F
= 499 Ω, R
L
= 1 kΩ, Unless otherwise noted.
SMALL SIGNAL FREQUENCY SMALL SIGNAL FREQUENCY
RESPONSE RESPONSE 0.1-dB FLATNESS
Figure 1. Figure 2. Figure 3.
FREQUENCY RESPONSE
SMALL SIGNAL FREQUENCY LARGE SIGNAL FREQUENCY vs
RESPONSE RESPONSE CAPACiTIVE LOAD
Figure 4. Figure 5. Figure 6.
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