Which component is responsible for converting analog ECG signals into digital data?

Which component is responsible for converting analog ECG signals into digital data?

• A. Signal amplifier
• B. Recording system
• C. Lead wire
• D. Display monitor

Answer: (A)

Converting analog ECG signals into digital data requires an analog-to-digital converter that samples the continuous waveform and assigns digital values to its amplitude. In ECG equipment this function is housed in the recording system, which handles sampling, quantization, and storage of the digital signal. The signal amplifier merely boosts the small bio-potential for better ADC resolution; lead wires transmit the signal to the device; the display monitor renders the digital waveform. So the recording system is responsible for turning the analog ECG into digital data.

Converting analog ECG signals into digital data requires an analog-to-digital converter that samples the continuous waveform and assigns digital values to its amplitude. In ECG equipment this function is housed in the recording system, which handles sampling, quantization, and storage of the digital signal. The signal amplifier merely boosts the small bio-potential for better ADC resolution; lead wires transmit the signal to the device; the display monitor renders the digital waveform. So the recording system is responsible for turning the analog ECG into digital data.