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參數(shù)資料
| 型號： | INA163 |
| 元件分類： | 測量放大器 |
| 英文描述： | Precision Instrumentation Amplifier |
| 中文描述： | 精密儀表放大器 |
| 文件頁數(shù)： | 6/11頁 |
| 文件大?。?/td> | 250K |
| 代理商： | INA163 |
INA163
SBOS177B
6
www.ti.com
APPLICATIONS INFORMATION
Figure 1 shows the basic connections required for
operation. Power supplies should be bypassed with
0.1
μ
F tantalum capacitors near the device pins. The
output Sense (pin 8) and output Reference (pin 10)
should be low-impedance connections. Resistance of
a few ohms in series with these connections will
degrade the common-mode rejection of the INA163.
GAIN-SET RESISTOR
Gain is set with an external resistor, R
G
, as shown in
Figure 1. The two internal 3k
feedback resistors are
laser-trimmed to 3k
within approximately
±
0.2%. Gain
is:
G
R
G
= +
1
6000
The temperature coefficient of the internal 3k
resis-
tors is approximately
±
25ppm/
°
C. Accuracy and TCR
of the external R
G
will also contribute to gain error and
FIGURE 1. Basic Circuit Connections.
temperature drift. These effects can be inferred from
the gain equation. Make a short, direct connection to
the gain set resistor, R
G
. Avoid running output signals
near these sensitive input nodes.
NOISE PERFORMANCE
The INA163 provides very low-noise with low-source
impedance. Its 1nV/
√
Hz voltage noise delivers near-
theoretical noise performance with a source imped-
ance of 200
. The input stage design used to achieve
this low noise, results in relatively high input bias
current and input bias current noise. As a result, the
INA163 may not provide the best noise performance
with a source impedance greater than 10k
. For source
impedance greater than 10k
, other instrumentation
amplifiers may provide improved noise performance.
A1
A2
A3
6k
6k
Sense
8
9
10
14
6
1
11
6k
6k
V+
V
-
V+
V
-
INA163
G = 1 +
6000
R
G
3k
3k
V
O
V
O
Sometimes Shown in
Simplified Form:
NOTE: (1) NC = No Connection.
Ref
0.1
m
F
0.1
m
F
R
G
INA163
GAIN
R
G
(
)
NC
(1)
6000
1500
667
316
122
61
30
12
6
3
(V/V)
1
2
5
10
20
50
100
200
500
1000
2000
(dB)
0
6
14
20
26
34
40
46
54
60
66
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|---|---|
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| INA163_06 | 制造商:BB 制造商全稱:BB 功能描述:Low-Noise, Low-Distortion INSTRUMENTATION AMPLIFIER |
| INA163UA | 功能描述:儀表放大器 Low-Noise Low-Distortion 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 |
| INA163UA/2K5 | 功能描述:儀表放大器 Low-Noise Low-Distortion 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 |
| INA163UA/2K5E4 | 功能描述:儀表放大器 Low-Noise Low-Distortion 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 |
| INA163UAE4 | 功能描述:儀表放大器 Low-Noise Low-Distortion 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 |
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