A fully differential switched-current (SI) memory cell with a new common-ma
de feedback technique is presented. The cell achieves a lower voltage of op
eration (V-dd,V-min = V-t + 3V(ds,sat)) than that (V-dd,V-min = 2V(t) + 4V(
ds,sat)) of its conventional counterpart, by using a new common-mode curren
t sensing technique.