Title :
A continuous time sigma delta modulator with operational floating integrator
Author :
Ducu, Dragos ; Manolescu, Andrei
Author_Institution :
Bucharest Romania, Bucharest, Romania
Abstract :
This paper presents a new circuit realization for current mode continuous time sigma delta modulator. In this sigma delta convertor for implementation of integrators in loop filter, operational floating conveyors are employed. The modulator is designed in 0.18μm TSMC CMOS technology and features low power consumption (<;3mW), low supply voltage (±1.8), and wide dynamic range (>;70db). The performance of the circuits was demonstrated using HSPICE at low voltage operation of ±1.8V.
Keywords :
CMOS integrated circuits; conveyors; filters; sigma-delta modulation; HSPICE; TSMC CMOS technology; current mode continuous time sigma delta modulator; loop filter; low power consumption; operational floating conveyors; operational floating integrator; sigma delta convertor; size 0.18 mum; voltage -1.8 V; voltage 1.8 V; CMOS integrated circuits; CMOS technology; Converters; Inverters; Modulation; Sigma delta modulation; Transistors; Analog to digital convertor; Comparator; Current Conveyer; Operational Floating Conveyer; Sigma delta;
Conference_Titel :
Semiconductor Conference (CAS), 2012 International
Conference_Location :
Sinaia
Print_ISBN :
978-1-4673-0737-6
DOI :
10.1109/SMICND.2012.6400729
