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What is the sampling rate of the analog-to-digital converter in digitizing of ECG signal in signal conditioning?(a) 250 Hz(b) 215 Hz(c) 40-100 Hz(d) 200-215 HzThe question was asked during an internship interview.Question is from Phonocardiography (PCG) topic in division Biomedical Recorders of Biomedical Instrumentation

Answer»

Right option is (a) 250 Hz

To elaborate: In signal conditioning, ECG signal is amplified, filtered (0.05-100 Hz for diagnostic purposes, 1-40 Hz for monitoring purposes) and DIGITIZED USING an 8 or 12-bit analog-to-digital converter with a TYPICAL SAMPLING rate of 250 Hz.



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