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INA118: Op-Amp for EMG-ECG

TI-CSC
Genius 14760 points
Part Number: INA118
Other Parts Discussed in Thread: INA821

Tool/software:

Hello E2E Experts,

Good day.

The instrumentation operation will be used to capture the ECG or EMG signal, these signals are very small and come in mV from the human body.

The instrumentation operational conditions that I am looking for are:

CMRR greater than 100dB
PSRR in uV/V
JFET technologies
Input Bias Current in nA or pA
Response speed greater than 35V/μs.

Regards,

CSC

  • 0
    TI__Genius 14275 points

    Hello,

    We don't have an exact match for the specification given (No JFET or 35 V/us slew rate) but the INA821 is a good option that offers very good performance and has been used in ECG applications.

    Within the INA821 data sheet, there is a list of other INA's that show the selection of INA options:

    I hope this helps.

    Regards,
    Mike