Title :
Low-voltage CMOS analog four quadrant multiplier based on flipped voltage followers
Author :
Ramirez-Angulo, J. ; Thoutam, S. ; López-Martin, A. ; Carvajal, R.G.
Author_Institution :
Klipsch Sch. of Electr. Eng., New Mexico State Univ., Las Cruces, NM, USA
Abstract :
A compact CMOS low-voltage analog four quadrant transconductance amplifier based on flipped voltage followers and transistors operating in triode mode is introduced and experimentally verified. The circuit has a feedforward architecture and features high bandwidth, low distortion, and operates with a single supply voltage of 1.5 V in a 0.5 μm CMOS technology. Extension of the proposed circuit into a generalized multiplier with "n" input pairs is discussed. Simulations and experimental results are shown that verify the characteristics of the proposed multiplier.
Keywords :
CMOS analogue integrated circuits; amplifiers; analogue multipliers; circuit simulation; feedforward; low-power electronics; 0.5 micron; 1.5 V; CMOS analog amplifier; CMOS analog multiplier; CMOS technology; analog four quadrant multiplier; feedforward circuit architecture; flipped voltage followers; flipped voltage transistors; four quadrant transconductance amplifier; generalized multiplier; high bandwidth; input pairs; low distortion; low-voltage analog amplifier; low-voltage analog multiplier; supply voltage; triode mode operation; Bandwidth; CMOS technology; Circuit simulation; Electric breakdown; Equations; Impedance; MOSFETs; Operational amplifiers; Transconductance; Voltage;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1328286
