Patent ID: 6538491
Filing Date: 2003-03-25
Classification: H03H,H03K

Abstract:
A circuit comprising:an operational transconductance amplifier, having an input terminal and an output terminal, that amplifies a signal provided at the input terminal and provides an amplified signal at the output terminal; a feedback section that provides a feedback signal to the input terminal based on the amplified signal, said feedback section including a first switched capacitor and having a first time constant; and a load section that provides the amplified signal as an output of the circuit, said load section including a second switched capacitor and having a second time constant, the first time constant matching the second time constant to improve settling of the circuit, said feedback section including a dummy transistor that is in an always-on state and that is inserted into said feedback section to couple the first switched capacitor to the output terminal of said operational transconductance amplifier.