Title :
A 1.2-V 15-bit 2.5-MS/s oversampling ADC with reduced integrator swings
Author :
Nam, KiYoung ; Lee, Sang-Min ; Su, David K. ; Wooley, Bruce A.
Author_Institution :
Center for Integrated Syst., Stanford Univ., CA, USA
Abstract :
A low-voltage oversampling analog-to-digital converter for high-speed, high-resolution applications has been integrated in a 0.25-μm CMOS technology. The converter employs a sigma-delta modulator with reduced integrator swing ranges to enable operation from a 1.2-V supply. It achieves a dynamic range of 92 dB for a 1.25-MHz signal band at an oversampling ratio of 16, while dissipating 83 mW.
Keywords :
CMOS integrated circuits; integrating circuits; low-power electronics; sigma-delta modulation; 0.25 micron; 1.2 V; 1.25 MHz; 40 MHz; 83 mW; CMOS; high-speed high-resolution ADC; low-voltage analog-to-digital converter; oversampling ADC; oversampling ratio; reduced integrator swing range; sigma-delta modulator; Analog-digital conversion; Bandwidth; CMOS technology; Circuits; Delta-sigma modulation; Dynamic range; Dynamic voltage scaling; Operational amplifiers; Quantization; Signal design;
Conference_Titel :
Custom Integrated Circuits Conference, 2004. Proceedings of the IEEE 2004
Print_ISBN :
0-7803-8495-4
DOI :
10.1109/CICC.2004.1358872
