Hot carrier in jection early warning failure circuit

The present invention discloses a kind of hot carrier in jection early warning failure circuit, comprises stress generation module, differential testing module, offset voltage cancellation module, non-overlapping clock generation module, comparison module, output module; The output terminal of stress generation module is connected with the input end of differential testing module, the output terminal of differential testing module is connected with the input end of comparison module by offset voltage cancellation module, the output terminal of comparison module is connected with the input end of output module, and the output terminal of non-overlapping clock generation module is connected with the input end of described stress generation module, another input end of differential testing module, another input end of offset voltage cancellation module respectively.The present invention can when hot carrier injection effect occurs to a certain degree output alarm signal exactly, its reliability is higher, and circuit structure is simple, is easy to apply.