Patents by Inventor Kenneth A. Lawas

Kenneth A. Lawas has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Independent dominant pole compensation of two loops using one compensating element
    Patent number: 7679445
    Abstract: Disclosed is a differential amplifier system that maintains high speed characteristics of the differential amplifier while providing stability from a common-mode loop by using dominant pole compensation. The disclosed system includes a first and second transconductance stage, a circuit having high impedance, and a compensation circuit.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: March 16, 2010
    Assignee: Analog Devices, Inc.
    Inventors: Kenneth A. Lawas, Kimo Y. F. Tam
  • Balanced differential cross-coupled transconductance amplifier for a multiplexor
    Patent number: 7583146
    Abstract: A balanced, differential, cross-coupled amplifier including an input stage for receiving a differential input and including an input transconductance differential pair and a feedback transconductance differential pair; and an output stage responsive to the input stage for providing a differential output; the differential input being connected to one input of the input transconductance differential pair and one input of the feedback transconductance differential pair, the differential output being fed back to one input of the input transconductance differential pair and one input of the feedback transconductance differential pair for balancing the currents in the transconductance differential pairs over the input range.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: September 1, 2009
    Assignee: Analog Devices, Inc.
    Inventors: Kimo Y. F. Tam, Kenneth A. Lawas
  • Balanced differential cross-coupled transconductance amplifier for a multiplexor
    Publication number: 20080309409
    Abstract: A balanced, differential, cross-coupled amplifier including an input stage for receiving a differential input and including an input transconductance differential pair and a feedback transconductance differential pair; and an output stage responsive to the input stage for providing a differential output; the differential input being connected to one input of the input transconductance differential pair and one input of the feedback transconductance differential pair, the differential output being fed back to one input of the input transconductance differential pair and one input of the feedback transconductance differential pair for balancing the currents in the transconductance differential pairs over the input range.
    Type: Application
    Filed: June 15, 2007
    Publication date: December 18, 2008
    Inventors: Kimo Y.F. Tam, Kenneth A. Lawas
  • Non-inverting feedback amplifier with high disabled impedance
    Patent number: 6307432
    Abstract: A non-inverting feedback amplifier with high disabled impedance includes a disableable signal amplifier; a feedback network having an input node, a feedback node and a reference node; the signal amplifier having a first input for receiving an input signal and a second input for receiving a feedback signal from the feedback node; and a reference buffer including a reference amplifier with its output directly connected to the reference node without additional series switching elements, a first input connected to a reference voltage, and a second input connected to its own output for mirroring at its output the reference voltage at its first input when the reference buffer and signal amplifier are enabled and presenting a high impedance between the feedback network and the reference voltage when the signal amplifier and reference buffer are disabled.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: October 23, 2001
    Assignee: Analog Devices, Inc.
    Inventors: Kimo Y. F. Tam, Kenneth A. Lawas