Title :
A full switched-current S2I second order sigma-delta modulator
Author :
Boujelben, S. ; Dallet, D. ; Marchegay, Ph
Author_Institution :
Lab. de Microelectron., Bordeaux I Univ., Talence, France
Abstract :
This paper presents a low pass sigma delta modulator for analog-to-digital conversion which uses the S2I switched current technique. At circuit level, we propose a new differential pseudo bilinear integrator. Other building blocks such as the 1 bit digital to analogue converter and the quantizer are discussed as well. The whole modulator was implemented in a 0.6 μm three-metal layers digital CMOS process with single 3.3 V power supply. The measured dynamic range is over 8 bits
Keywords :
CMOS integrated circuits; integrating circuits; low-power electronics; modulators; quantisation (signal); sigma-delta modulation; switched current circuits; 0.6 micron; 1.024 MHz; 3.3 V; 8 bit; 8 kHz; ADC; DAC; S2I switched current technique; analog-to-digital conversion; differential pseudo bilinear integrator; digital to analogue converter; dynamic range; full SI sigma-delta modulator; low pass sigma delta modulator; quantizer; second order sigma-delta modulator; three-metal layers digital CMOS process; Circuit simulation; Clocks; Delta-sigma modulation; Frequency; Impedance; MOS devices; Mirrors; Sampling methods; Switches; Voltage;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE
Conference_Location :
Budapest
Print_ISBN :
0-7803-6646-8
DOI :
10.1109/IMTC.2001.928181
