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參數(shù)資料
| 型號： | AB-025 |
| 元件分類： | 測量放大器 |
| 英文描述： | AB-025 - BOOST INSTRUMENT AMP CMR WITH COMMON-MODE DRIVEN SUPPLIES |
| 中文描述： | 抗體- 025 -公路貨運(yùn)升壓儀表放大器共模驅(qū)動用品 |
| 文件頁數(shù)： | 10/42頁 |
| 文件大?。?/td> | 606K |
| 代理商： | AB-025 |
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10
See Table II, for a more detailed
description of the components.
C
DIF
–In
+
V
O
V–
R
C1
R
C2
Q
2
Q
1
+In
2
1
R
Q
D
P
V
C
D
C
+
V
E
D
E
4
5
3
53
54
G
CM
G
A
R
2
C
2
6
9
+
V
B
R
O1
F
B
7
+
V
LIM
8
R
O2
R
EE
C
EE
99
I
EE
10
C
1
11
12
D
LN
D
LP
+
+
91
92
V
LN
V
LP
+
H
LIM
90
D
Q1
+
+
21
22
V
Q1
F
Q3
20
F
Q2
F
Q1
+
E
GND
D
Q2
V
Q2
C
2CM
C
1CM
V+
R
E1
R
E2
13
14
FIGURE B4. PNP-Input Op Amp Enhanced PSpice Parts Macromodel.
Output Current Flowing
from the Power-Supply Nodes
A number of components were added so that both load and
quiescent current flow from the power supply nodes.
F
mirrors the current flowing from V
.
Positive current from F
Q3
flows through D
Q1
into V
Q1
.
Negative current from F
flows through D
into V
.
F
Q1
supplies constant portion of I
plus mirrors positive
output current, which is measured by V
.
F
Q2
supplies constant portion of I
plus mirrors negative
output current, which is measured by V
Q2
.
NOTE: The enhanced op amp macromodels are more com-
plicated and require more simulation time than the
standard macromodels, but will provide more accu-
racy in simulations in some applications.
FIGURE B5. Input Protection Diode Circuitry Used on
OPA27/37 Enhanced Macromodels.
2
1
–In
+In
5
V
O
3
V+
4
V–
D
2B
D
1A
D
2A
D
1B
V
D1
V
D2
R
2IN
R
1IN
IN
N
IN
P
FIGURE B6. Input Protection Circuitry Used on OPA77/177
Enhanced Macromodels.
FIGURE B7. Input Protection Circuitry Used on INA114/118
Enhanced Macromodel.
2
1
–In
+In
5
V
O
3
V+
4
V–
D
1N2
D
1N1
3
1
4
X2.FS12
X2.FS22
X2.FS11
X2.FS21
X2.VS21
X2.VS11
X2.S21
X2.S11
3
2
4
X1.FS12
X1.FS22
X1.FS11
X1.FS21
X1.VS21
X1.VS11
X1.S21
X1.S11
Protection circuitry
for the non-inverting
input.
Protection circuitry
for the inverting
input.
V+
–In
V–
V+
+In
V–
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| AB-026 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:AB-026 - A LOW NOISE. LOW DISTORTION DESIGN FOR ANTIALIASING AND ANTI-IMAGING FILTERS |
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