A 2-Vpp Linear Input-Range Fully Balanced CMOS Transconductor and Its Application to a 2.5-V 2.5-MHz Gm-C LPF

摘要

A fully balanced (FB) transconductor using two multi-input single-ended (SE) CMOS transconductors is pro- posed, where the transconductors use MOS transitors operating in a triode region for achieving a wide linear input-range. SE cir- cuits are easier to design than differential circuits and inherently reject common-mode (CM) signals. The multi-input structure is used to make a CM feedback loop and to determine an output CM voltage.