A method for anti radiation domino logic circuit

A high-speed coding logic circuit for current switch of current steering DAC is designed. In order to achieve high operation speed, the circuit adopts domino structure, and in order to enhance the anti irradiation ability, the circuit adopts the RC-DICE structure. Through the measurement of anti SEE on the remote test platform, the soft errors reached 100 times when the LET value is 37.2 MeV·cm²/mg until the total ion implantation amount is 4.3×10⁶ions/cm², the soft errors of the hardened circuit is only 24 times at the same LET value until the total ion implantation amount is 10⁷ions/cm². The result shows that the ability of anti SET and SEU is greatly enhanced.