Patent ID: 8217721

Claim:
A slew rate enhancing circuit, comprising: a current source configured to source or sink a current; a current mirror circuit configured to generate a mirrored current according to the current source, the mirrored current being adaptively provided for an amplifier that is coupled to receive a non-inverting input voltage and an inverting input voltage; and a switch circuit electrically coupled with the current source and the current mirror circuit, the switch circuit including a first branch and a second branch that are coupled in parallel, wherein passage of the first branch and passage of the second branch are respectively controlled by a first switch and a second switch according to the non-inverting input voltage and the inverting input voltage; wherein the first switch is closed when a voltage difference between the non-inverting input voltage and the inverting input voltage is greater than a first predetermined value, and the second switch is closed when a reverse voltage difference between the non-inverting input voltage and the inverting input voltage is greater than a second predetermined value.