Bootstrapping techniques for floating switches in switched-capacitor circuits

Author

Xin Meng ; Temes, Gabor C.

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Oregon State Univ., Corvallis, OR, USA

fYear

2014

fDate

3-6 Aug. 2014

Firstpage

398

Lastpage

401

Abstract

Bootstrapping techniques improve the linearity of switched-capacitor circuits, especially for low supply voltage. This paper proposes simple but effective techniques for bootstrapping floating switches. The method is applicable to such fundamental circuits as sample-and-hold (S/H) stages, switched-capacitor (SC) filters and SC amplifiers. It can make the on-resistance and channel charge of the switches independent of the signal, and hence enables linear operation even for low bias voltages.

Keywords

bootstrap circuits; sample and hold circuits; switched capacitor filters; switches; S/H stages; SC amplifiers; bootstrapping floating switches; bootstrapping techniques; channel charge; low bias voltages; low supply voltage; on-resistance; sample-and-hold circuits; switched-capacitor circuits; switched-capacitor filters; CMOS integrated circuits; Clocks; Discrete cosine transforms; Linearity; Logic gates; Modulation; Switches; Bootstrapped clock; delta-sigma ADC; nonlinearity; sample-and-hold;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (MWSCAS), 2014 IEEE 57th International Midwest Symposium on

Conference_Location

College Station, TX

ISSN

1548-3746

Print_ISBN

978-1-4799-4134-6

Type

conf

DOI

10.1109/MWSCAS.2014.6908436

Filename

6908436