Low-voltage digitally controlled current differencing buffered amplifier

Author

Prasertsom, Danucha ; Tangsrirat, Worapong ; Surakampontorn, Wanlop

Author_Institution

Res. Center for Commun. & Inf. Technol., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok

fYear

2008

fDate

Nov. 30 2008-Dec. 3 2008

Firstpage

1074

Lastpage

1077

Abstract

A low-voltage digitally controlled current differencing buffered amplifier (DC-CDBA) is proposed. The realization scheme is through the cascade connection of a current differencing circuit, a current division network (CDN) and a buffered voltage amplifier. To achieve the digital control of the current gain of the circuit, a novel CDN is also proposed. The proposed DC-CDBA can operate with the low supply voltage of plusmn1.25 V. PSPICE simulations using standard 0.5-mum CMOS process parameters are in agreement with the theory.

Keywords

CMOS digital integrated circuits; SPICE; buffer circuits; differential amplifiers; digital control; low-power electronics; CMOS process; DC-CDBA; PSPICE simulation; buffered voltage amplifier; cascade connection; current differencing buffered amplifier; current division network; digitally controlled amplifier; low-voltage amplifier; size 0.5 mum; Adaptive filters; Bipolar integrated circuits; CMOS integrated circuits; Circuit optimization; Circuit simulation; Communication system control; Digital control; Low voltage; SPICE; Synthesizers;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2008. APCCAS 2008. IEEE Asia Pacific Conference on

Conference_Location

Macao

Print_ISBN

978-1-4244-2341-5

Electronic_ISBN

978-1-4244-2342-2

Type

conf

DOI

10.1109/APCCAS.2008.4746210

Filename

4746210