Gael F. Close, Urs Frey, et al.
IEDM 2010
We report on a compact (0.02 mm2) buffer for both voltage and current stimulation of electrogenic cells on a complementary metal oxide semiconductor microelectrode array. In voltage mode, the circuit is a high-current class-AB voltage follower, based on a local common-mode feedback (LCMFB) amplifier. In current mode, the circuit is a current conveyor of type II, using the same LCMFB amplifier with cascode stages to increase the gain. The circuit shows good linearity in the 0.5-3.5 V input range and has extensively been used for stimulation of neuronal cultures. © 2010 IEEE.
Gael F. Close, Urs Frey, et al.
IEDM 2010
Andreas Hierlemann, Urs Frey, et al.
Proceedings of the IEEE
Urs Frey, Jan Sedivy, et al.
IEEE JSSC
Tobias Kraus, Elisabeth Verpoorte, et al.
Lab on a Chip