Phase Compensation Technique for a Low-Power Transconductor

Rui ITO
Tetsuro ITAKURA
Tadashi ARAI

Publication
IEICE TRANSACTIONS on Electronics   Vol.E88-C    No.6    pp.1263-1266
Publication Date: 2005/06/01
Online ISSN: 
DOI: 10.1093/ietele/e88-c.6.1263
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Analog Circuit and Device Technologies)
Category: Building Block
Keyword: 
phase compensation,  differential-mode signal,  common-mode signal,  transconductor,  

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Summary: 
In a direct conversion receiver for mobile communication, it is important to reduce power dissipation. Because a low pass filter in a direct conversion receiver must suppress adjacent channel signals, a high order and high power dissipation is often required in the low pass filter. We propose a new phase compensation technique suitable for a low power transconductor used in a GmC filter as a low pass filter. The new phase compensation technique reduces 10% of power dissipation.