Patent ID: 7893765
Filing Date: 2011-02-22
Classification: H03F,H03G,H04L

Abstract:
1. A current canceling CMOS variable gain amplifier comprising: a first leg having a first input line, a first output line, a first ON transistor portion, a first control transistor portion and a first subtracting transistor portion; and a second leg having a second input line, a second output line, a second ON transistor portion, a second control transistor portion and a second subtracting transistor portion, said second input line being operable to provide a second input current, said second output line being operable to provide a second output current; wherein said first input line is arranged to provide a first input current to each of said first ON transistor portion, said first control transistor portion and said first subtracting transistor portion, wherein said second input line is arranged to provide a second input current to each of said second ON transistor portion, said second control transistor portion and said second subtracting transistor portion, wherein said first output line is in electrical connection with each of said first ON transistor portion, said first control transistor portion and said second subtracting transistor portion, and wherein said second output line is in electrical connection with each of said second ON transistor portion, said second control transistor portion and said first subtracting transistor portion.