THS4631
www.ti.com
SLOS451A–DECEMBER 2004–REVISED MARCH 2005
TYPICAL CHARACTERISTICS (±15 V GRAPHS)
TA = 25°C, G = 2, RF = 499 Ω, RL = 1 kΩ, Unless otherwise noted.
+15 V
Test Data
Mesurement Point
50 Ω Source
+
953 Ω
50 Ω Test
Equipment
THS4631
_
49.9 Ω
49.9 Ω
−15 V
R
G
R
F
499 Ω
499 Ω
C
F
SMALL SIGNAL FREQUENCY
RESPONSE
SMALL SIGNAL FREQUENCY
RESPONSE
0.1-dB FLATNESS
10
9
6.3
6.2
6.1
50
40
30
20
10
V
= 200 mV
PP
O
V
= 200 mV
PP
O
C
= 0 pF
F
G = 100, R = 11.3 kΩ, R = 115 Ω
F
G
C
= 5.6 pF
F
8
7
C
F
= 8.2 pF
6
G = 10, R = 499 Ω,
F
6
5.9
5.8
R
= 54.9 Ω
G
5
C
= 8.2 pF
105 MHz
G = 5, R = 499 Ω,
F
F
R
= 124 Ω
G
4
105 MHz
G = 2, R = 499 Ω,
F
38 MHz
3
2
R
= 499 Ω
G
G = 1, R = 0 Ω
F
G = 2, R = 499 Ω,
0
F
5.7
5.6
R
G
= 499 Ω
1
0
−10
100 k
100 k
1 M
10 M
100 M
1 G
100 k
1 M
10 M
100 M
1 M
10 M
100 M
1 G
f − Frequency − Hz
f − Frequency − Hz
f − Frequency − Hz
Figure 1.
Figure 2.
Figure 3.
FREQUENCY RESPONSE
vs
SMALL SIGNAL FREQUENCY
RESPONSE
LARGE SIGNAL FREQUENCY
RESPONSE
CAPACiTIVE LOAD
4
2
8
7
6
5
4
3
2
1
0
5
4
3
2
1
R
= 50 Ω,
G = 1,
V
= 200 mV
PP
ISO
C
L
O
V
= 5 V
PP
O
= 10 pF
R
R
= 0 Ω,
F
L
C
= 0 pF
= 1 kΩ
F
C
= 2.2 pF
F
0
V
= 0.5 V
O
PP
R
= 30 Ω,
= 56 pF
ISO
C
L
−2
−4
−6
105 MHz
R
C
= 20 Ω,
ISO
= 100 pF
0
V
= 2 V
O
PP
102 MHz
L
−1
C
F
= 5.2 pF
+15 V
50 Ω
Source
−2
−3
−4
−5
R
ISO
THS4631
G = −1, R = 499 Ω,
F
R
L
R
G
= 499 Ω
C
L
−8
−15 V
0 Ω
−10
100 k
100 k
1 M
10 M
100 M
1 G
100 k
1 M
10 M
100 M
1 G
10 M
100 M
1 G
1 M
f − Frequency − Hz
f − Frequency − Hz
f − Frequency − Hz
Figure 4.
Figure 5.
Figure 6.
5
TI [ TEXAS INSTRUMENTS ]
