Patent ID: 8390335

Claim:
A circuit comprising: a first transistor having a first gate terminal, a first source terminal, and a first drain terminal; a second transistor having a second gate terminal, a second source terminal, and a second drain terminal, the second drain terminal coupled to the first source terminal; a first signal path coupled in between a signal input and the first gate terminal, the first signal path comprising a filter, wherein the filter comprises a first capacitor having a first terminal coupled the signal input, and having a second terminal; a second capacitor having a third terminal directly coupled to the second terminal of the first capacitor, and having a fourth terminal coupled to a first supply voltage; and a resistor having a fifth terminal directly coupled to the second terminal of the first capacitor, and having a sixth terminal coupled to a second supply voltage; a second signal path coupled in between the signal input and the second gate terminal; and a signal output coupled to the second source terminal.