A multi MRad hardened 8 bit/20 MHz flash ADC

An 8-bit, 20-MHz flash ADC (analog-to-digital converter) using a radiation-hardened SOI (silicon on insulator) process is presented. The circuit is capable of operating at up to 20 MHz, even after a total dose exposure of 100 Mrad (SiO/sub 2/) (10 keV X-rays). Simultaneous use of a rad-hard technology and optimized design in order to withstand the effects of a total dose made it possible to achieve a rad-hard product.<
>