Description: In many testing situations, the sensor output signal is often very weak, and with a large common mode voltage (including the interference voltage), generally requires the use of this signal measuring amplifier. Measuring amplifier is a high-gain, DC-coupled amplifier, it has a differential input, single-ended output, high input impedance and high common mode rejection ratio and so on. Please design a measuring amplifier: the indicator: a. When the input signal peak-uip-p = 1mV, the output voltage signal peak uop-p = 1V. b. Input impedance: Ri> 1MΩ c. bandwidth: Δf (-3dB) = 1Hz ~ 1kHz d. common mode rejection ratio: CMRR> 70dB
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测量放大器的设计.doc
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