Title :
A 2 Vpp linear input-range fully balanced CMOS transconductor and its application to a 2.5 V 2.5 MHz Gm-C LPF
Author :
Itakura, Tetsuro ; Ueno, Takashi ; Tanimoto, Hiroshi ; Arai, Tadashi
Author_Institution :
R&D Center, Toshiba Corp., Kawasaki, Japan
Abstract :
A fully balanced (FB) transconductor using two multi-input single-ended CMOS transconductors is proposed. The FB transconductor achieves a 2Vpp linear input range at 2.5 V power supply and consumes 1.74 mA. The output resistance of the FB transconductor is 2 MΩ. It operates at 2 V with linear input-range of 1.2 Vpp and at 1.6 V with linear input-range of 0.9 Vpp. A 2.5 V 2.5 MHz FB Gm-C filter using the FB transconductors achieves a CMRR of 45 dB and a passband IIP3 of 32 dBm
Keywords :
CMOS analogue integrated circuits; active filters; low-pass filters; radiofrequency filters; 0.9 to 2.5 V; 1.74 mA; 2 Mohm; 2.5 MHz; Gm-C filter; fully balanced CMOS transconductor; linear input-range transconductor; low-pass filter; multi-input single-ended transconductors; Active filters; CMOS process; Circuits; Delta modulation; Feedback; Power supplies; Tail; Transconductors; Variable structure systems; Voltage;
Conference_Titel :
Custom Integrated Circuits, 1999. Proceedings of the IEEE 1999
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-5443-5
DOI :
10.1109/CICC.1999.777332
