Level shifter and operational amplifier

Abstract

A level shifter includes a signal receiving module, including at least one signal receiving end for receiving at least one input signal and being conducted or non-conducted according to the input signal; a level adjusting module, configured to generate the adjusted output signal according to the input signal, wherein the level adjusting module includes a first connection end and a second connection end, the second connection end is coupled to the signal receiving module; and a switch module, including a first end coupling to the first connection end and a second end coupling to the second connection end. If the switch module is conducted, an current path is formed between the first connection end, the second connection end and the signal receiving module through the switch module. If the switch module is not conducted, current is blocked from flowing from the first connection end to the second connection end.

Dependencies are inferred from the claim text.