HV Floating Switch Matrix with Parachute Safety Driving for 3D Echography Systems

Abstract

The paper describes the design challenges and solutions studied and implemented in high voltage (HV) bidirectional and floating switch. The main characteristics are the isolation voltage up to positive and negative 200V, ultra-low power consumption for switch driving, fully floating at high slew rate up to 30V/ns. The final IC integrates a matrix of 512 (8×64) independent HV switch, the other important requirement is the minimal area.