A translinear-based implementation of digital logic gates using only CMOS in current-mode

The implementation of basic logic functions based on current-mode techniques is proposed in this paper. By expanding the logic function in power series expression, using adder, sub-tractor and multipliers realization of the basic logic functions are simplified. To illustrate the proposed technique, a CMOS circuit for simultaneous realization of the basic logic functions NOT, AND, OR, NAND and XOR is considered. In this paper digital logic gates are realized at low voltage using analog current-mode techniques. The circuit can be operated with ± 3.1V supplies. PSPICE simulation and experimental results show good agreement with the theoretical predictions.