- College of Engineering | Oregon State
... matched to each other typically within a few %, Cs within
0.05%, with careful layout. The transconductance (Gm) of
stages can be matched to about 10 - 30%.
• In an active-RC filter, the time constant Tc is determined
by RC products, hence it is accurate to only 20 – 50%. In
a Gm-C filter , Tc ~ C/Gm ...