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

fYear

2009

fDate

12-17 July 2009

Firstpage

128

Lastpage

131

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/RME.2009.5201326

Filename

5201326