Patent ID: 8854138
Filing Date: 2014-10-07
Classification: A23V,A61K,H03F

Abstract:
1. A buffer amplifier comprising: at least a first stage, a driver stage and an output stage, wherein said first stage includes a first N-channel metal-oxide-semiconductor field-effect transistor (MOSFET) and a first P-channel MOSFET forming a first pair of complementary MOSFETs, wherein each of said first N-channel MOSFET and said first P-channel MOSFET includes respectively a source, a drain and a gate, wherein said first stage includes a second N-channel MOSFET and a second P-channel MOSFET forming a second pair of complementary MOSFETs, wherein each of said second N-channel MOSFET and said second P-channel MOSFET includes respectively a source, a drain and a gate, and wherein said first pair of complementary MOSFETs form a first pair of source followers; and, wherein said gate of said first N-channel MOSFET and said gate of said first P-channel MOSFET are connected together, wherein an input signal is adapted to be fed to said gates of said first pair of complementary MOSFETs through a first resistor which acts as a gate stopper resistor, and wherein a second resistor is connected between an input of said buffer amplifier and a ground.