Low-Voltage and Low-Power CMOS Voltage-to-Current Converter

Weihsing LIU  Shen-Iuan LIU  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E87-C   No.6   pp.1029-1032
Publication Date: 2004/06/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Analog Circuit and Device Technologies)
Category: 
Keyword: 
low-voltage,  low-power,  voltage-to-current converter,  

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Summary: 
A CMOS voltage-to-current converter in weak inversion is presented in this Letter. It can operate for low supply voltage and its power consumption is also low. As the input voltage varies from -0.15 V to 0.15 V, the measured maximum linearity error for the proposed voltage-to-current converter, is about 3.35%. Its power consumption is only 26 µW under the supply voltage of 2 V. The proposed voltage-to-current converter has been fabricated in a 0.5 µm N-well CMOS 2P2M process. The proposed circuit is expected to be useful in analog signal processing applications.