Title :
A CMOS ASIC for differential read-out of ISFET sensors
Author :
Ravezzi, L. ; Stoppa, D. ; Corrà, M. ; Soncini, G. ; Betta, G. F Dalla ; Lorenzelli, L.
Author_Institution :
Dipt. di Ingegneria dei Mater., Trento Univ., Italy
fDate :
6/23/1905 12:00:00 AM
Abstract :
We report on a CMOS ASIC especially taylored for the differential read-out of ISFET sensors, to be used for remote monitoring of water pollution and for biomedical diagnostic and analysis. The circuit design is based on switched-capacitors technique, which allows a high resolution to be achieved. The first chip prototypes have been fabricated in 0.8 μm, 5 V CMOS technology, and are currently being tested. Preliminary results from the electrical characterisation of the chip are reported, which validate the design approach
Keywords :
CMOS integrated circuits; application specific integrated circuits; biomedical electronics; biosensors; ion sensitive field effect transistors; readout electronics; switched capacitor networks; water pollution measurement; 0.8 micron; 5 V; CMOS ASIC; ISFET sensor; biomedical diagnostics; differential read-out; electrical characteristics; remote monitoring; switched capacitor circuit; water pollution; Application specific integrated circuits; CMOS technology; Chemical sensors; Circuit synthesis; Circuit testing; FETs; Packaging; Polarization; Switching circuits; Threshold voltage;
Conference_Titel :
Electronics, Circuits and Systems, 2001. ICECS 2001. The 8th IEEE International Conference on
Print_ISBN :
0-7803-7057-0
DOI :
10.1109/ICECS.2001.957502
