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TI Home » TI E2E Community » Support Forums » Amplifiers » Precision Amplifiers » Precision Amplifiers Forum » Do I need an isolation amplifier for a portable EMG?
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Do I need an isolation amplifier for a portable EMG?

Do I need an isolation amplifier for a portable EMG?

This question is answered
TJ10751
Posted by TJ10751
on May 06 2009 08:26 AM
Prodigy165 points

Hi,

For my final year project I have a main board with a number of analog sensors that are all fed into an MSP and sent via bluetooth to a recipient client PC.
I've designed an EMG front end amplifier that will be on board, however I'm not sure if it will require an isolation amplifer to remove noise. My power supply is TI's BQ24022 Li Ion rechargeable battery.

Would I require the islation amp?

 

thx in advance

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  • Matt Hann
    Posted by Matt Hann
    on May 12 2009 12:30 PM
    Verified Answer
    Verified by Matt Hann
    Expert7120 points

    TJ,

    The purpose of an isolation amplifier in an ECG system is not to remove noise; rather, it is to protect the patient from the electronics.  For portable EMG I don't see this as necessary. 

    Matt

    ECG assistance
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