參數(shù)資料
型號(hào): VCA822IDGS
廠商: Texas Instruments, Inc.
英文描述: Wideband, > 40dB Gain Adjust Range, Linear in V/V VARIABLE GAIN AMPLIFIER
中文描述: 寬帶,“40dB的增益調(diào)整范圍在V,線性音頻/視頻可變?cè)鲆娣糯笃?/td>
文件頁(yè)數(shù): 6/35頁(yè)
文件大?。?/td> 837K
代理商: VCA822IDGS
www.ti.com
TYPICAL CHARACTERISTICS: V
S
= ±5V, DC and Power-Supply Parameters
At T
A
= +25
°
C, R
L
= 100
, V
G
= +1V, and V
IN
= single-ended input on +V
IN
with –V
IN
at ground, unless otherwise noted.
40
39
38
37
36
35
34
33
32
Gain Control Voltage (V)
Q
-
1.0
-
0.8
-
0.6
-
0.4
-
0.2
0
0.2
0.4
0.6
0.8
1.0
+I
Q
-
I
Q
1500
1400
1300
1200
1100
1000
900
800
700
A
(V/V)
VMAX
Figure 9.
F
W
1
10
100
NOTE: 3dB bandwidth varies with package type.
-
See the
section for more details.
Application
For > 40dB Gain Adjust Range
40
39
38
37
36
35
34
33
32
Gain Control Voltage (V)
Figure 11.
Q
-
1.0
-
0.8
-
0.6
-
0.4
-
0.2
0
0.2
0.4
0.6
0.8
1.0
+I
Q
-
I
Q
40
39
38
37
36
35
34
33
32
Gain Control Voltage (V)
Figure 12.
Q
-
1.0
-
0.8
-
0.6
-
0.4
-
0.2
0
0.2
0.4
0.6
0.8
1.0
+I
Q
-
I
Q
1.0
0.5
0
-
0.5
-
1.0
-
1.5
-
2.0
-
2.5
-
3.0
Temperature ( C)
Figure 13.
°
I
m
35
30
25
20
15
10
5
0
-
5
I
m
-
50
-
25
0
25
50
75
100
125
Input Offset Voltage (V
)
OS
Left Scale
Input Bias Current (I )
B
Right Scale
10x Input Offset Current (I
)
OS
Right Scale
V = 0V
VCA822
SBOS343A–SEPTEMBER 2007–REVISED OCTOBER 2007
SUPPLY CURRENT vs CONTROL VOLTAGE
(A
VMAX
= +2V/V)
RECOMMENDED R
F
vs A
VMAX
Figure 10.
SUPPLY CURRENT vs CONTROL VOLTAGE
(A
VMAX
= +10V/V)
SUPPLY CURRENT vs CONTROL VOLTAGE
(A
VMAX
= +100V/V)
TYPICAL DC DRIFT vs TEMPERATURE
6
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Copyright 2007, Texas Instruments Incorporated
Product Folder Link(s):
VCA822
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