参数资料
型号: 12217
厂商: NVE Corp/Sensor Products
文件页数: 100/145页
文件大小: 0K
描述: MAGNET 3.5MM DIA X 4MM THICK
标准包装: 10
系列: *
其它名称: Q7078272A
Application Notes
The equation for the amplified voltage is:
? R 3 ?
Assuming R 1 + R 2 = R 3 + R 4 >> 5K
This type of amplifier has two significant limitations in that;
1) the feedback resistors load the output of the NVE bridge sense resistors,
and
2) the circuit has a poor common mode rejection (CMRR) if the resistor ratios are not ideally matched.
Users of this circuit should be aware of the deficiencies and ensure that the feedback resistors are large
compared to the bridge resistor values and that the bridge supply is stable and free from noise and
ripple. Any pickup on the bridge leads should be minimized through proper layout, filter capacitors,
and/or shielding.
- 100 -
www.nve.com phone: 952-829-9217 fax: 952-829-9189
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