Title :
A four quadrant analog multiplier based on a novel CMOS linear current divider
Author :
Dei, M. ; Piotto, M. ; Nizza, N. ; Lazzerini, G.M. ; Bruschi, P.
Author_Institution :
Dipt. di Ing. dell´´Inf., Univ. di Pisa, Pisa, Italy
Abstract :
An analog, Gilbert-like CMOS multiplier, based on a novel linear current divider, is described. The divider uses a cascade of two differential pairs to produce a linear dependence between the tail current and the two output currents. A numerical algorithm has been implemented to find the optimum sizing of the active devices in order to compensate for the deviation from the ideal MOSFET square law. The results of low frequency measurements performed on a prototype, designed with CMOS devices from the STMicroelectronic process BCD6s, are shown.
Keywords :
CMOS analogue integrated circuits; MOSFET; analogue multipliers; semiconductor devices; BCD6s; CMOS devices; Gilbert-like CMOS multiplier; MOSFET square law; STMicroelectronic process; four quadrant analog multiplier; linear current divider; numerical algorithm; CMOS process; Capacitive sensors; Equations; MOSFET circuits; Performance evaluation; Sensor phenomena and characterization; Tail; Transconductance; Transconductors; Voltage;
Conference_Titel :
Research in Microelectronics and Electronics, 2009. PRIME 2009. Ph.D.
Conference_Location :
Cork
Print_ISBN :
978-1-4244-3733-7
Electronic_ISBN :
978-1-4244-3734-4
DOI :
10.1109/RME.2009.5201326
