Title :
Design of a reconfigurable ADC for UWB/Bluetooth radios
Author :
Gustafsson, E. Martin I ; Rusu, Ana ; Ismail, Mohammed
Author_Institution :
Sch. of Inf. & Commun. Technol., RaMSiS Group, Royal Inst. of Technol., Stockholm
Abstract :
This paper presents the circuit implementation of a reconfigurable Analog to Digital Converter (ADC) for UWB and Bluetooth communication standards for mobile terminals. The bandwidth accuracy space is covered through smart configuration of a flexible capacitive interpolation ADC, used as stand-alone in UWB mode and as quantizer of a Sigma Delta ADC in Bluetooth mode. The ADC has been accurately modeled in Matlab/Simulink and then implemented at transistor level in a 180 nm CMOS process in the Cadence environment. The simulation results indicate that the ADC can achieve 30 dB SINAD at 528 MSPS in UWB mode, and 60 dB SINAD at 1 MSPS in Bluetooth mode.
Keywords :
Bluetooth; CMOS integrated circuits; analogue-digital conversion; integrated circuit design; mobile radio; ultra wideband communication; Bluetooth communication standards; Bluetooth radio; CMOS process; Cadence environment; UWB communication standards; UWB mode; UWB radio; bandwidth accuracy space; circuit implementation; flexible capacitive interpolation ADC; mobile terminals; quantizer; reconfigurable ADC; reconfigurable analog to digital converter; sigma Delta ADC; size 180 nm; Analog-digital conversion; Bandwidth; Bluetooth; CMOS process; Circuits; Communication standards; Delta-sigma modulation; Interpolation; Mathematical model; Semiconductor device modeling;
Conference_Titel :
Circuits and Systems and TAISA Conference, 2008. NEWCAS-TAISA 2008. 2008 Joint 6th International IEEE Northeast Workshop on
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4244-2331-6
Electronic_ISBN :
978-1-4244-2332-3
DOI :
10.1109/NEWCAS.2008.4606357
