Paper Info
Title
A Low Power High Precision Trim-Less Envelope Detector for Fail-Safe Circuit in LVDS Receiver
Abstract
This brief presents a trim-less precision envelope detector for fail-safe circuit in LVDS receiver. A preamp is proposed using <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">${g} _{m}$ </tex-math></inline-formula> -constant biasing concept to produce an accurate gain of 9.78 dB across PVT covering the full range of the LVDS input common-mode voltage. The preamp produces a fixed output common-mode voltage of 200 mV across supply voltage variation which reduces its complexity by alleviating the need of a trimming circuit. A unique reference voltage generation of the envelope detector based on level shifted output common-mode voltage accurately compares the output common-mode and negative peak voltages to set the detection threshold. An LVDS receiver adopting the proposed envelope detector was fabricated on a standard 0.13- <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">${\mu }\text{m}$ </tex-math></inline-formula> CMOS. With a supply voltage of 3.3 V, the envelope detector achieves a voltage trimming precision of 20 mV while only consuming 162 <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">${\boldsymbol{\mu }}\text{W}$ </tex-math></inline-formula> of power.
Year
DOI
Venue
2020
10.1109/TCSII.2019.2950685
IEEE Transactions on Circuits and Systems II: Express Briefs
Keywords
DocType
Volume
Threshold voltage,Envelope detectors,Gain,Receivers,Resistors,Transistors
Journal
67
Issue
ISSN
Citations 
10
1549-7747
0
PageRank 
References 
Authors
0.34
0
6
Name
Order
Citations
PageRank
Seng Siong Lee101.01
Lini Lee201.69
Fabian Wai Lee Kung300.34
Ahmed Saad400.34
Harikrishnan Ramiah55215.94
Gim Heng Tan600.34