New CMOS realization of the CCII

New second-generation current conveyor negative (CCII-) realization suitable for very large scale implementation is described. The proposed architecture provides a very low impedance level at the N terminal and a wide dynamic voltage range, as well as a high current tracking accuracy. Simulations show that the CCII- current follower bandwidth extends beyond 100 MHz. Two compensation methods are discussed: the first results in voltage-offset cancellation, while the second results in voltage-offset compensation as well as Rx reduction.