Title :
Analogue BiCMOS squarer and its applications
Author :
Chang, Cheng-Chieh ; Liu, Shen-Iuan ; Lee, Jiin-Long
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
3/4/1999 12:00:00 AM
Abstract :
A BiCMOS squarer using active attenuators which has been fabricated in a 10 μm BiCMOS process is presented. Experimental results show that the nonlinearity of the squarer can be kept below 2%, across the entire input voltage range of ±0.3 V. Its -3 dB bandwidth is measured to be ~1 MHz. Moreover, based on the proposed squarer circuits, a four-quadrant multiplier and a vector summation circuit have also been realised. The proposed circuits are expected to be useful in analogue signal processing applications
Keywords :
BiCMOS analogue integrated circuits; analogue multipliers; analogue processing circuits; attenuators; -0.3 to 0.3 V; 1 MHz; 10 micron; active attenuators; analogue BiCMOS squarer; analogue signal processing applications; four-quadrant multiplier; vector summation circuit;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990301
