READ-OUT INTERFACE CIRCUIT FOR MULTIPLE IONS SENSING

摘要

A read out circuit for multiple ion sensing and method is disclosed. The said circuit (1) is composed of a plurality of sensors, preferably ISFET (5) sensors, a plurality of CIMP (2) circuits, an analog selector (4) and an analog to digital converter (6). Said circuit allows the sensors therein be operated simultaneously and thus processing time for output signal is reduced.