Increasing the linearity of a transconductance cel

专利名称：Increasing the linearity of a

transconductance cell

发明人：Peter Capofreddi,Arvin Ramesh

Shahani,Derek Shaeffer,Korhan Titizer

申请号：US11134684申请日：20050519

公开号：US200602614A1公开日：20061123

专利附图：

摘要：A transconductance cell is disclosed that includes a first transistor and a secondtransistor. A regulator regulates an average voltage in response to a reference voltage,

where the average voltage corresponds to the average of a voltage at a bias terminal ofthe first transistor and a voltage at a bias terminal of the second transistor. A mixerincluding the transconductance cell is also disclosed. In the mixer, the transconductancecell receives a differential input voltage and produces a differential output current. Themixer also includes one or more switches that multiply the differential output currentwith an oscillator signal. A method is disclosed that includes measuring an averagevoltage of a voltage at a bias terminal of a first transistor and a voltage at a bias terminalof a second transistor and regulating the average voltage responsive to the measuredaverage voltage and a reference voltage.

申请人：Peter Capofreddi,Arvin Ramesh Shahani,Derek Shaeffer,Korhan Titizer

地址：San Francisco CA US,Menlo Park CA US,Redwood City CA US,Saratoga CA US

国籍：US,US,US,US

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