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Analog Signal Conditioning

An LVDT with associated signal conditioning will be used to measure work-piece motion from -20 to +20 cm. The static transfer function is 2.5 mV/mm. The output will be interfaced to a computer via an ADC.

a. What is the range of output voltage?

b. If the desired resolution is 0.5 mm, how many bits must the ADC have?

c. Design analog signal conditioning to provide interface to a bipolar ADC with a 5-V reference.

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