Title :
Current-mode pseudo-exponential circuit with tunable input range
Author :
Chang, Cheng-Chieh ; Liu, Shen-Iuan
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
8/3/2000 12:00:00 AM
Abstract :
A current-mode pseudo-exponential circuit is presented based on Taylor´s series expansion. It is composed of MOS transistors operating in saturation and its input range can be tuned by adjusting the biased current. The proposed circuit has been verified in 0.8 μm CMOS technology by HSPICE simulations. The simulation results confirm the feasibility of the proposed pseudo-exponential circuit
Keywords :
CMOS analogue integrated circuits; SPICE; analogue processing circuits; circuit simulation; circuit tuning; current-mode circuits; series (mathematics); 0.8 mum; CMOS technology; HSPICE simulations; MOS transistors; Taylor series expansion; biased current; current-mode pseudo-exponential circuit; saturation; square-law characteristics; tunable input range;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20001003
