Title :
A Study on Voltage Reference Buffers for Low Voltage Switched Capacitor Data Converters
Author :
Cao, Zhiheng ; Yan, Shouli
Author_Institution :
Univ. of Texas at Austin, Austin
Abstract :
Voltage reference buffers published in recent years for application to low-voltage switched-capacitor data converters are analyzed and compared in terms of power efficiency, settling behavior and power supply rejection. Design trade-offs are discussed. A novel switched-capacitor biased voltage reference buffer which is ideal for over- sampling ADCs is proposed and analyzed. This novel structure combines power efficiency, stability in settling, and high PSRR in low frequency.
Keywords :
analogue-digital conversion; buffer circuits; reference circuits; switched capacitor networks; low-voltage switched-capacitor data converters; over-sampling ADC; power efficiency; power supply rejection; voltage reference buffers; Capacitors; Circuits; Differential amplifiers; Frequency; Impedance; Low voltage; MOS devices; Power amplifiers; Power supplies; Switching converters;
Conference_Titel :
Circuits and Systems, 2006. MWSCAS '06. 49th IEEE International Midwest Symposium on
Conference_Location :
San Juan
Print_ISBN :
1-4244-0172-0
Electronic_ISBN :
1548-3746
DOI :
10.1109/MWSCAS.2006.381777
