Low-offset BiCMOS Current Controlled Current Differencing Buffered Amplifier (CC-CDBA) and Applications

Montree Siriphuchyanun; Phamorn Silapan; Winai Jaikla

doi:10.37936/ecti-eec.200861.171766

Authors

Montree Siriphuchyanun Department of Teacher Training in Electrical Engineering, Faculty of Technical Education, King Mongkut's University of Technology North Bangkok
Phamorn Silapan Electric and Industrial Program, Faculty of Industrial Technology, Uttaradit Rajabhat University
Winai Jaikla Electric and Electronic Program, Faculty of Industrial Technology, Suan Sunandha Rajabhat University

DOI:

https://doi.org/10.37936/ecti-eec.200861.171766

Keywords:

CC-CDBA, Current controlled, Current-mode, Multiplier, Divider, Current amplifier

Abstract

This article presents the design for a basic current mode building block for analog signal processing, called Current Controlled Current Differencing Buffered Amplifier (CC-CDBA). Its parasitic resistances at two current input ports can be controlled by an input bias current. The output current and voltage offset are quite low. The proposed element was realized in a BiCMOS technology and the voltage follower in the element is modified to achieve high performance properties. Its performances are examined through PSPICE simulations. In addition,
examples as a current-mode multiplier/divider and current amplifier are included, compared to the conventional CC-CDBA implementation. They disclose performances of the proposed CC-CDBA superior to previous CC-CDBA.

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