KONG Mou-fu, PAN Yin-song, ZHANG Ren-fu, et al. Current integration readout circuit for micro biosensor arrays[J]. 2008, (5): 89-92. DOI: 10.13873/j.1000-97872008.05.031.
A high sensitive readout circuit for self-assembly biosensor micro arrays is designed.The circuit includes a high sensitive biologic current detection unit for micro arrays
integration unit
correlated double sampling(CDS) unit and output buffer unit.The circuit with a single 5 V power supply can accept very weak input current in a range of 0
5
0 nA.Simulation is carried out with 0.6 μm/level 7 CMOS process
and a good simulation result is achieved.The circuit is compatible with a standard CMOS process to realize an integrated biosensor array.