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參數(shù)資料
| 型號(hào)： | AB-014 |
| 英文描述： | AB-014 - INPUT OVERLOAD PROTECTION FOR THE RCV420 4-20mA CURRENT-LOOP RECEIVER |
| 中文描述： | 抗體- 014 -輸入過(guò)載保護(hù)的RCV420 4 - 20mA電流環(huán)接收機(jī) |
| 文件頁(yè)數(shù)： | 3/5頁(yè) |
| 文件大小： | 57K |
| 代理商： | AB-014 |
3
FIGURE 3. Offsetting the INA105 Common-Mode Input Range Using the Negative Power Supply as a Reference.
FIGURE 4. Offsetting the INA105 Common-Mode Input Range with a Zener Reference.
INA105
25k
25k
25k
25k
4
2
7
7
5
6
1
V = V – V
–3V > V
O
> –10V
Swap A
2
pins 2 and 3 for:
10V > V
O
> 3V
also;
((V+) – 5V) > V
O
> ((V–) + 3V)
V+
V–
3
V = V–
R
1
R
2
R
3
R
4
INA105
25k
25k
25k
25k
4
2
5
6
1
3
R
1
R
2
R
3
R
4
V
3
V
2
A
1
A
2
INA105
25k
25k
25k
25k
4
2
7
7
5
6
1
V = V – V
0V > V
O
> –10V
Swap A
2
pins 2 and 3 for:
10V > V
O
> 0V
also;
((V+) – 5V) > V
O
> ((V–) + 3V)
V+
V–
3
V = (V–) + 3.3V
R
1
R
2
R
3
R
4
INA105
25k
25k
25k
25k
4
2
5
6
1
3
R
1
R
2
R
3
R
4
V
3
V
2
A
1
A
2
1N4684
3.3V
10k
380k
380k
380k
21.1k
20k
2
3
8
1
5
6
V
3
V
2
INA117
INA105
25k
25k
25k
25k
2
5
6
1
V = V – V
3
R
1
R
2
R
4
R
5
R
3
1M
R
7
R
6
1M
R
8
A
3
A
1
A
2
FIGURE 5. Boosting the INA117 Common-Mode Input Range Dynamically.
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