Datasheet
TYPICAL CHARACTERISTICS: V
S
= ± 5V, DC Parameters
10
1
0.1
GainResistor( )W
DifferentialInputVoltage(V )
PP
10 100 1k
I =2.6mA
RG MAX
V (V )=2 ´ R I (A )´
INMAX PP G RG MAX P
40
35
30
25
20
15
10
5
0
FeedbackResistor( )W
MaximumGainAdjustRange(dB)
100 1k 10k
I =2.6mA
RG
A (V/V)=2 ´ [R /V (V )] 2 I (A´ ´ )
VMAX F IN PP PRG
V =1V
O PP
V =2V
O PP
V =4V
O PP
V =3V
O PP
11
10
9
8
7
6
5
4
3
2
1
0
-1
ControlVoltage(V)
Gain(V/V)
-1.2 -0.8 -0.4 0 0.4 0.8 1.2
RelativeErrorto
MaximumGain
AbsoluteError
60
50
40
30
20
10
0
OutputVoltage(V )
PP
MaximumGainAdjustRange(dB)
0.1 1 10
I =2.6mA
RG
A (V/V)=2 ´ [R /V (V )] 2 I (A´ ´ )
VMAX F
IN
PPP RG
R
F
=3kW
R
F
=2kW
R
F
=1.5kW
R
F
=1kW
R
F
=500W
R
F
=4kW
R
F
=5kW
21
20
19
18
17
16
15
14
13
ControlVoltage(V)
Gain(V/V)
0 0.2 0.4 0.6 0.8 1.0
RelativeErrortoLinearRegression
LinearRegression
DataEquation:
y=20log(4.9619x+5.0169)
Data
24
22
20
18
16
14
12
10
8
6
4
2
0
-2
-4
-6
ControlVoltage(V)
Gain(V/V)
-0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1.0
RelativeErrortoLinearRegression
LinearRegression
DataEquation:
y=20log(4.9619x+5.0169)
Data
VCA822
www.ti.com
..................................................................................................................................... SBOS343C – SEPTEMBER 2007 – REVISED DECEMBER 2008
At T
A
= +25 ° C, R
L
= 100 Ω , V
G
= +1V, and V
IN
= single-ended input on +V
IN
with – V
IN
at ground, unless otherwise noted.
MAXIMUM DIFFERENTIAL INPUT VOLTAGE vs R
G
MAXIMUM GAIN ADJUST RANGE vs R
F
Figure 3. Figure 4.
MAXIMUM GAIN ADJUST RANGE vs GAIN ERROR BAND vs
PEAK-TO-PEAK OUTPUT VOLTAGE GAIN CONTROL VOLTAGE
Figure 5. Figure 6.
GAIN ERROR BAND vs GAIN ERROR BAND vs
GAIN CONTROL VOLTAGE GAIN CONTROL VOLTAGE
Figure 7. Figure 8.
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