By comparing the characteristic changes of transistors
subsidiary and entire circuits of CMOS amplifiers with different thickness of gate oxide layer
influence of the thickness of gate oxide layer on the op-amps’ irradiation response was investigated. It was shown that by lessening the thickness of gate oxide layer properly
degradation of transconductance of the op-amps’ transistors induced by radiation-generated oxide charges and interface states can be reduced
therefore
the ability of CMOS amp to resist radiation can be improved.