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參數(shù)資料
| 型號(hào)： | INA125U |
| 元件分類： | 測(cè)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)： | 13/13頁 |
| 文件大?。?/td> | 273K |
| 代理商： | INA125U |
13
INA125
INPUT PROTECTION
The inputs of the INA125 are individually protected for
voltage up to
±
40V. For example, a condition of –40V on
one input and +40V on the other input will not cause
damage. Internal circuitry on each input provides low series
impedance under normal signal conditions. To provide
equivalent protection, series input resistors would contribute
FIGURE 6. Psuedoground Bridge Measurement, 5V Single Supply.
excessive noise. If the input is overloaded, the protection
circuitry limits the input current to a safe value of approxi-
mately 120
μ
A to 190
μ
A. The typical performance curve
“Input Bias Current vs Input Overload Voltage” shows this
input current limit behavior. The inputs are protected even if
the power supplies are disconnected or turned off.
A
1
Ref
Amp
2.5V
A
2
30k
10k
10k
30k
Bandgap
V
REF
13
12
14
15
16
4
6
9
10
11
IA
REF
5
2.5V
(1)
(Psuedoground)
8
7
R
G
Load
Sense
INA125
V
REF
COM
V
REF
BG
V
REF
2.5
V
REF
5
V
REF
10
V
IN
+
V
IN
–
1
3
+5V
2
SLEEP
+
–
V
O
= +2.5V +
[
(
V
IN
– V
IN
)
(
4 + R
)
]
+
–
G
NOTE: (1) “Psuedoground” is at +2.5V above actual ground.
This provides a precision reference voltage for succeeding
single-supply op amp stages.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| INA125U | 制造商:Texas Instruments 功能描述:IC INSTRUMENT AMP 150KHZ 114DB SOIC16 制造商:Texas Instruments 功能描述:IC, INSTRUMENT AMP, 150KHZ, 114DB SOIC16 |
| INA125U/2K5 | 功能描述:儀表放大器 w/Precision Voltage Reference 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 |
| INA125U/2K5E4 | 功能描述:儀表放大器 w/Precision Voltage Reference 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 |
| INA125UA | 功能描述:儀表放大器 w/Precision Voltage Reference 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 |
| INA125UA | 制造商:BURR-BROWN 功能描述:AMP INSTRUMENTATION SOIC16 125 |
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