Patent ID: 6642795
Filing Date: 2003-11-04
Classification: H03F,H03G

Abstract:
A differential amplifier comprising:a first buffer amplifier; a second buffer amplifier coupled to said first buffer amplifier; first output amplifier coupled to said second buffer amplifier; a second output amplifier; a first resistor; a second resistor; a third resistor; a first diode network configured to prevent an overload condition for said first output amplifier; and a second diode network configured to prevent an overload condition for said second output amplifier; wherein: said first resistor is coupled in a feedback loop to said first output amplifier; said second resistor is coupled in a feedback loop to said second output amplifier; said first buffer amplifier is coupled to said second buffer amplifier via said third resistor; said first diode network is coupled in parallel to said first resistor; and said second diode network is coupled in parallel to said second resistor.