A fully interactive diagnostic and patient monitoring block diagram which allows the user to review each segment of the analog signal chain, the MCU section, and the power management portion is available at ti.com. As an example, if the user selects the Input Buffer section they are able to choose, based on the requirements of an ECG system, a conditioning amplifier with the amount of precision or accuracy that is needed, the amount of SNR required, etc. The same can be done by selecting the ADC portion to determine whether a higher resolution or a lower resolution converter is needed.