Low capacitance endoscopic system

An endoscopic system comprising:

• a shaft comprising a proximal end portion and a distal end portion;
• a sensor system comprising:
• a sensor positioned to sense a characteristic of an environment in which the distal end portion is located,
• a transceiver circuit,
• a data transmission line electrically coupled to the sensor and extending along the shaft, the data transmission line configured to transmit data between the sensor and a signal processor via the transceiver circuit, and
• a power transmission line electrically coupled to the sensor and extending along the shaft, the power transmission line configured to transmit power to the sensor;
• a floating ground element electrically coupled to the sensor system;
• a power regulator electrically coupled to the power transmission line and to the floating ground element, the power regulator configured to convert ground-referenced power received from an earth ground referenced power source into floating ground element referenced power and to output the floating ground element referenced power through the power transmission line;
• and
• a circuit enclosure at least partially enclosing the transceiver circuit and the power regulator, the circuit enclosure being electrically coupled with the floating ground element.