Title
A Highly Linear Gilbert Cell Ota With Multiple Gated Transistors For Non-Coherent Uwb Receivers
Abstract
This paper presents a highly linear Gilbert cell OTA by cancelling the second order transconductance derivative (gm")of nMOS transistors near threshold voltage using the technique of multiple gated transistors. This gives rise to 5 dB improvement in IIP3 of OTA, using a 0.13 mu m CMOS technology with 1.2V supply. Simulation results and analytical relations for THD and IIP3 in OTA illustrate the tradeoffs between linearity, bandwidth, and power dissipation. System level simulation of a non-coherent UWB receiver, with this OTA as a Gm-C integrator in receiver structure, illustrates an improvement of BER from 3e(-2) to 1e(-3). The power consumption, IIP3, and transconductance in OTA are 0.62mW, 20.5 dBm, and 156 mu A/V, respectively.
Year
DOI
Venue
2009
10.1587/elex.6.756
IEICE ELECTRONICS EXPRESS
Keywords
Field
DocType
CMOS OTA, linearization, multiple gated transistors
Non coherent,Computer science,Electronic engineering,Transistor,Linearization,Gilbert cell
Journal
Volume
Issue
ISSN
6
11
1349-2543
Citations 
PageRank 
References 
0
0.34
1
Authors
2
Name
Order
Citations
PageRank
Mostafa Yargholi1124.70
Abdolreza Nabavi24717.09