CMOS OUTPUT DRIVER WITH P-CHANNEL SUBSTRATE TRACKING FOR COLD SPARE CAPABILITY

摘要

A CMOS output driver circuit (10) with p-channel substrate tracking provides an output driver to full power supply voltage (VDD). The circuit (10) is especially useful as a redundant circuit where its power supply connection (VDD) is connected to ground (VSS) and the circuit (10) is kept in unbiased storage until it is needed.