Design of static and dynamic translinear circuits based on CMOS CCII translinear loops

A novel technique to implement static and dynamic translinear circuits based on CMOS CCII translinear (TL) loops is proposed. Various examples of static translinear circuits, such as squaring, square-root, geometric-mean circuits, are introduced. Falling into the category of dynamic translinear circuits, a second-order low-pass filter and a fourth-order filter offering high-pass, low-pass and band-pass transfer functions are presented. This approach opens a new paradigm for design of translinear circuits using CMOS CCIIs and diodes implemented using CMOS technology. The filters realized are electronically tunable by altering the magnitude of the bias/control currents.