Title :
A new single-loop single-stage low power sigma-delta modulator
Author :
Safarian, Amin Qasem ; Sahandi, Farzad ; Atarodi, S. Mojtaba
Author_Institution :
Sharif Univ. of Technol., Tehran, Iran
Abstract :
This paper presents a new single-loop single-stage second order sigma-delta modulator. The circuit based on switched capacitor components just uses one Op-Amp to realize second order noise shaping. The modulator demonstrated 85 dB DR in 8kHz bandwidth, dissipating 135 μW from a 2.5 V supply.
Keywords :
low-power electronics; operational amplifiers; sigma-delta modulation; switched capacitor networks; 135 muW; 2.5 V; 8 kHz; Op-Amp; second order noise shaping; sigma-delta modulator; switched capacitor; Capacitors; Circuits; Delta modulation; Delta-sigma modulation; Equations; Filters; Noise shaping; Operational amplifiers; Quantization; Signal to noise ratio;
Conference_Titel :
Microelectronics, The 14th International Conference on 2002 - ICM
Print_ISBN :
0-7803-7573-4
DOI :
10.1109/ICM-02.2002.1161533
