Datasheet

GainControlVoltage(V)
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Gain(V/V)
110
100
90
80
70
60
50
40
30
20
10
0
-10
Frequency(Hz)
1M 10M 100M 1G
NormalizedGain(dB)
3
0
-3
-6
-9
-12
V =10mV
V =1V +10mV
IN DC
G DC PP
Time(10ns/div)
V (V)
IN
V (V)
OUT
2.5
2.0
1.5
1.0
0.5
0
-0.5
2.5
2.0
1.5
1.0
0.5
0
-0.5
50
40
30
20
10
0
-50
Frequency(Hz)
NormalizedGain(dB)
1M 1G
V =+2V
G
10M 100M
V =2V
O
PP
V =0V
G
-10
-20
-30
-40
Input-Referred
0.20
0.15
0.10
0.05
0
-0.05
-0.10
-0.15
-0.20
Time(40ns/div)
InputVoltage(mV)
8
6
4
2
0
-8
-6
-4
-2
OutputVoltage(V)
A =40dB
VMAX
V =+2V
G
InputVoltage
LeftScale
OutputVoltage
RightScale
0.3
0.2
0.1
0
-0.3
Time(40ns/div)
InputVoltage(V)
InputVoltage
LeftScale
OutputVoltage
RightScale
-0.1
-0.2
A =40dB
VMAX
V =0.85V
G
6
4
2
0
-6
OutputVoltage(V)
-2
-4
VCA820
www.ti.com ............................................................................................................................................ SBOS395C –OCTOBER 2007–REVISED OCTOBER 2009
TYPICAL CHARACTERISTICS: V
S
= ±5V, A
VMAX
= 40dB (continued)
At T
A
= +25°C, R
L
= 100Ω, R
F
= 845Ω, R
G
= 16.9Ω, V
G
= +2V, V
IN
= single-ended input on +V
IN
with –V
IN
at ground, and
SO-14 package, unless otherwise noted.
GAIN vs GAIN CONTROL VOLTAGE GAIN CONTROL FREQUENCY
Figure 68. Figure 69.
GAIN CONTROL PULSE RESPONSE FULLY-ATTENUATED RESPONSE
Figure 70. Figure 71.
INPUT LIMITED OVERDRIVE RECOVERY OUTPUT LIMITED OVERDRIVE RECOVERY
Figure 72. Figure 73.
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