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2. The input voltage in the circuit below is given by Vs-18+0.1cos(cot). We wish to remove the 1.8V from Vs then amplify the cos term, i.e., we wish to get Vo--22*(0.1cos(ot)). We can do the amplification using the two resistors shown below. Derive the response of Vo vs Vs. What is the value of Vref require to drive the 1.8 V offset to zero? 220 kΩ Vo 10 kQ Vref

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2. The input voltage in the circuit below is given by Vs-18+0.1cos(cot). We wish to remove...
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