Title :
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
fDate :
Nov. 30 2008-Dec. 3 2008
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;
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
DOI :
10.1109/APCCAS.2008.4746210
