A low power high speed envelope detector for serial data systems in 45nm CMOS

A low power, high speed (480 Mbps) envelope detector for serial data systems such as USB2.0 is presented in this paper. The proposed architecture is based on a high frequency rectifier implementation along with a comparator and offers about 50% power and area saving compared to prior implementations...

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Bibliographic Details
Main Authors: Seth, Sumantra, Thinakaran, Rajavelu, Chakravarty, Sujoy, Sinha, Vikas
Format: Conference Proceeding
Language:English
Subjects:
Calibration
Digital filters
envelope detector
Envelope detectors
rectifier
Rectifiers
Silicon
Squelch detector
Temperature measurement
USB
Online Access:Request full text
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Description
Summary:A low power, high speed (480 Mbps) envelope detector for serial data systems such as USB2.0 is presented in this paper. The proposed architecture is based on a high frequency rectifier implementation along with a comparator and offers about 50% power and area saving compared to prior implementations using multiple comparators. A calibration scheme to make the envelope detector process, voltage and temperature independent is discussed. This architecture can be used for any high frequency serial interface requiring envelope detection. The circuit is implemented in 45 mn CMOS technology and consumes 2.5 mW power and occupies 0.015 mm 2 area.
ISSN:0271-4302
2158-1525
DOI:10.1109/ISCAS.2011.5937498