High-voltage tolerant switch configuration using standard 3.3-V 0.5-μm silicon-on-sapphire CMOS transistors

This paper presents the design for a high-voltage tolerant switch that finds application in systems with three times the supply voltage. The design is done using silicon-on-sapphire (SOS) technology CMOS transistors to utilize the advantages of the lack of parasitic issues and high speed. The design provides a method to minimize costs as it uses only standard CMOS transistors which lower manufacturing costs by avoiding expensive transistor modification methods. The design also reduces the leakage through auxiliary control circuits by employing tracking switches compared to MOS connected diodes. The proposed switch has an efficiency of 90% when used as an output driver for a load of 830μA. All performance simulations are done on cadence software customized by the Peregrine Semiconductor Corporation.