A Our current chip only supports dedicated emulator downloader, serial port download can do the corresponding functions, but can not meet the needs of online debugging.

A We have completed EPCM A, B and C modules with EPC chip, which can be used and debugged directly by customers.

A The chip itself is a single-lead sampling, due to the chip sampling rate up to 32K, you can use external analog channel switching to achieve multi-channel sampling applications.

A Adjusting the PGA amplification to the appropriate number of stages can effectively prevent amplifier saturation cutoff.

A The polarization resistance voltage of ECG mainly depends on the polarization voltage generated when the electrode pads are in contact with the human skin, and different materials of electrode pads will generate different voltages when they are in contact with the human skin. The generated voltage is superimposed on the ECG ECG signal, which is passed into the subsequent AFE analog front-end to be amplified and filtered. Methods to prevent the polarization voltage from being introduced into the subsequent circuit include adding isolation capacitors to the sampling front-end or adjusting the PGA amplification to effectively suppress baseline drift.

A Two-stage amplification