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July 2023 StudentZone Quiz Solution

Product Number: ADALM2000

Question 1:

How will the response of the circuit change if the value of the inductor is changed?

Answer 1:

Because the strength of the magnetic field is proportional with the value of the inductance, choosing an inductor with value bigger than 100uH will result in a higher voltage at the output of the sensor when the electromagnetic is closer to the chip. If the inductor has a smaller value, the effect will be opposite.

Question 2:

Why do we want to lower the output offset voltage?

Answer 2:

By lowering the offset voltage, we will implement a ratiometric offset that places the Zero Gauss point at the desired potential.