A self-bias wide-swing current mirror is used to broaden the output range and eliminate voltage jumping, a switching accelerate circuit is used to increase operation speed.

• 该电路采用了对称结构充放电流镜，自偏置高摆幅共源共栅镜像电流源和电流开关加速电路，提高了高速工作时电路的稳定性，消除了电压跳变现象，解决了充放电流不匹配的问题，且输出摆幅较大。