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參數(shù)資料
| 型號： | INA111BP |
| 元件分類： | 測量放大器 |
| 英文描述： | Very High Accuracy Instrumentation Amplifier |
| 中文描述： | 極高精度儀表放大器 |
| 文件頁數(shù)： | 10/11頁 |
| 文件大?。?/td> | 245K |
| 代理商： | INA111BP |
INA111
10
FIGURE 7. Bridge Transducer Amplifier.
mismatched values, causes a high frequency common-mode
signal to be converted to a differential signal. This degrades
common-mode rejection. The differential input capacitor,
C
3
, reduces the bandwidth and mitigates the effects of
mismatch in C
1
and C
2
. Make C
3
much larger than C
1
and
C
2
. If properly matched, C
1
and C
2
also improve CMR.
OUTPUT VOLTAGE SENSE
(SOL-16 Package Only)
The surface-mount version of the INA111 has a separate
output sense feedback connection (pin 12). Pin 12 must be
connected, usually to the output terminal, pin 11, for proper
operation. (This connection is made internally on the DIP
version of the INA111.)
The output feedback connection can be used to sense the
output voltage directly at the load for best accuracy. Figure 8
shows how to drive a load through series interconnection
resistance. Remotely located feedback paths may cause
instability. This can be generally be eliminated with a high
frequency feedback path through C
1
.
FIGURE 6. Input Low-Pass Filter.
FIGURE 8. Remote Load and Ground Sensing.
INA111
R
G
100
V
O
+10V
Bridge
G = 500
Ref
INA111
V
O
V
IN
–
V
IN
+
R
1
R
2
C
3
C
1
C
2
R
1
= R
2
C
1
= C
C
3
≈
10C
1
Ref
INA111
R
G
V
IN
–
V
IN
+
Load
Equal resistance here preserves
good common-mode rejection.
C
1000pF
Feedback
Ref
Surface-mount package
version only.
FIGURE 9. High-Pass Input Filter.
INA111
C
1
C
2
R
1
R
2
V
O
2
π
R
1
C
1
1
f
c
=
NOTE: To preserve good low frequency CMR,
make R
1
= R
2
and C
1
= C
2
.
R
G
Ref
f
3dB
=
1
4
π
R
1
C
3
+
C
1
2
FIGURE 10. Galvanically Isolated Instrumentation
Amplifier.
INA111
ISO122
±6V to ±18V
Isolated Power
V+
±15V
Ref
V
IN
–
V
IN
+
V
O
Isolated
Common
V–
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| INA111BU | Very High Accuracy Instrumentation Amplifier |
| INA114AUE4 | Single Supply, Rail-to-Rail, Low Cost Instrumentation Amplifier |
| INA114BP | Single Supply, Rail-to-Rail, Low Cost Instrumentation Amplifier |
| INA114BU | Single Supply, Rail-to-Rail, Low Cost Instrumentation Amplifier |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| INA111BP | 制造商:Texas Instruments 功能描述:IC AMP INSTRUMENTATION PDIP8 111 |
| INA111BPG4 | 功能描述:儀表放大器 High Speed FET-Input Instrumentation Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量: 輸入補(bǔ)償電壓:150 V 可用增益調(diào)整: 最大輸入電阻:10 kOhms 共模抑制比（最小值）:88 dB 工作電源電壓:2.7 V to 36 V 電源電流:200 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:MSOP-8 封裝:Bulk |
| INA111BU | 功能描述:儀表放大器 High Speed FET-Input Instrumentation Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量: 輸入補(bǔ)償電壓:150 V 可用增益調(diào)整: 最大輸入電阻:10 kOhms 共模抑制比（最小值）:88 dB 工作電源電壓:2.7 V to 36 V 電源電流:200 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:MSOP-8 封裝:Bulk |
| INA111BU | 制造商:Texas Instruments 功能描述:IC SM AMP INSTRUMENTATION |
| INA111BU | 制造商:Texas Instruments 功能描述:AMP INSTRUMENTATION SOIC16 111 |
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