Question: Design the ADC interface to a digital thermostat using an LM 3 4 tem - perature sensor and the ADC 0 8 0 4 .

Design the ADC interface to a digital thermostat using an LM34 tem-
perature sensor and the ADC0804. Your system must measure accu-
rately (20.2"F) from 50 to 10l0F.TheLM34 puts out 0.01V per degree
F (0F =0 V).
(a) What should the digital value for 50F be for the best resolution?
(b) What voltage must be applied to qn(-)?
(c) What is the full-scale range of voltage that will come in?
(d) What voltage must be applied to Vef/2?
(e) What binary value will represent 72"F?
(f) What is the resolution in "F? In volts?

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