hey can u plz help me wit this ckt. I want to knw the complete workin of this ckt. plz can you’l help. Thanks

[techspark]

[techspark]

taken from texas site

INA332 pdf

 

 

[AJISH ALFRED]

Hi,

I can explain this circuit, but I don’t know what that “Right Arm”, “Left Arm”, “Right Leg” etc. means. Could you please share more details about it, atleast what is the purpose of this circuit. If we don’t know what it basically does then how can someone explain the working?

The more details you include on your query the more better we can help you.

[techspark]

dis is basically a ecg amplifier ckt.

ecg electrode connection to right wrist , left wrist and one to d leg for grnd.

connection b/w 2 arms 4 potential

 

btw thnks alot Sir

[techspark]

i need some help immediately with dis ckt.

Thanks in advance whoever helps me out.

[AJISH ALFRED]

Hi,

Sorry for the delayed response. Actualy I don’t have a proper answer. The following are the inputs I can give

 

The INA332 is connected as a differential ampifier(amplify the voltage difference)

The top OPA336 is connected as an integrator

The down OPA336 is connected as a buffer(keep the voltage same but amplifies current)

The right hand side OPA336 is connected as an active filter

 

I don’t know anything about the ECG signal and hence can’t explain the purpose of above things.

[Author]

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