The linearization of MOS source-coupled pair

This paper presents a new linearization approach for a MOS source-coupled pair that utilizes a current I/sub ss/=a+bV/sup 2/ produced by an asymmetrical source-coupled pair as the tail current to cancel out its inherent nonlinearity. Simulation results show that under /spl plusmn/5 V bias voltage and over /spl plusmn/3 V input signal swings, the maximum full scale nonlinear error is /spl plusmn/0.68%.