Patents by Inventor Kaushal Kumar Ja

Kaushal Kumar Ja 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).

  • DAC having switchable current sources and resistor string
    Patent number: 7046182
    Abstract: A DAC architecture is provided which is monotonic in operation despite any mismatches in the components. The architecture is a segmented architecture and hence it is area efficient. This is achieved by effecting a generation of analog voltages by driving current sources to resistors in response to digital input. In a preferred embodiment, the invention provides a resistor string coupled between output and vref-, and set of current sources. The current sources are switched to nodes between resistors to generate voltages at the output.
    Type: Grant
    Filed: August 25, 2004
    Date of Patent: May 16, 2006
    Assignee: Analog Devices, Inc.
    Inventors: Kaushal Kumar Ja, Arindam Raychaudhuri, Michael T. Tuthill, William Hunt, David A. Phelan, Colin G. Lyden