integralx2
New Member
I am designing a circuit that will measure the muscle motion. The part I am stuck on is the reference voltage pin on the AD620. Should that be grounded, to make the reference 0V ?
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You could ground it, or it can be connected to the subject (patient). It will help eliminate errors due to potential differences between the subject and actual ground. If the cable to the subject is shielded, this reference can also be connected there.The reference terminal potential defines the zero output voltage and is especially useful when the load does not share a precise ground with the rest of the system.
You could ground it, or it can be connected to the subject (patient). It will help eliminate errors due to potential differences between the subject and actual ground. If the cable to the subject is shielded, this reference can also be connected there.
I am designing a circuit that will measure the muscle motion. The part I am stuck on is the reference voltage pin on the AD620. Should that be grounded, to make the reference 0V ?