Title :
The design of reconfigurable Delta-Sigma modulator for software defined radio applications
Author :
Moallemi, S. ; Jannesari, Abumoslem
Author_Institution :
Electr. & Comput. Eng. Dept., Tarbiat Modares Univ., Tehran, Iran
Abstract :
A new architecture for increasing the resolution of Delta-Sigma Analog to Digital Converter (ADC) is presented. The proposed technique also reduced the area of the modulator significantly. Also the feed forward topology is used for reducing the total power consumption. The modulator has been simulated in 0.18μm standard CMOS technology with 1.8V power supply in Hspice circuit simulator. The modulator achieves the Dynamic Range of 95.6dB and 80dB for GSM and Bluetooth standards respectively while consumes 4.02mW and 4.04mW in each case.
Keywords :
Bluetooth; CMOS analogue integrated circuits; SPICE; analogue-digital conversion; cellular radio; circuit simulation; feedforward amplifiers; modulators; network topology; operational amplifiers; software radio; ADC; CMOS technology; GSM standard; Hspice circuit simulator; bluetooth standard; delta-sigma analog to digital converter; dynamic range; feedforward topology; operational transconductance amplifier; power consumption reduction; power supply; reconfigurable delta-sigma modulator design; software defined radio application; Capacitors; Dynamic range; Modulation; Noise; Power demand; Standards; Wireless communication; ΔΣ modulator; Analog to Digital Converter (ADC); Operational Transconductance Amplifier (OTA); Software Defined Radio (SDR); Switched-Capacitor (SC);
Conference_Titel :
Circuits and Systems (ICCAS), 2012 IEEE International Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4673-3117-3
Electronic_ISBN :
978-1-4673-3118-0
DOI :
10.1109/ICCircuitsAndSystems.2012.6408301
