A Low-Voltage Low-Power Bipolar Transconductor with High-Linearity

Won-Sup CHUNG  Hyeong-Woo CHA  Sang-Hee SON  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E88-A   No.1   pp.384-386
Publication Date: 2005/01/01
Online ISSN: 
DOI: 10.1093/ietfec/e88-a.1.384
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Analog Signal Processing
Keyword: 
analog circuit,  linear transconductor,  voltage-to-current converter,  low-voltage low-power circuit,  

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Summary: 
A new bipolar linear transconductor for low-voltage low-power signal processing is proposed. The proposed circuit has larger input linear range and smaller power dissipation when compared with the conventional bipolar linear transconductor. The experimental results show that the transconductor with a transconductance of 50 µS has a linearity error of less than 0.02% over an input voltage range of 2.1 V at supply voltages of 3 V. The power dissipation of the transconductor is 3.15 mW.