AN ANALOG READ OUT INTERFACE CIRCUIT FOR ION SENSOR
    2.
    发明申请
    AN ANALOG READ OUT INTERFACE CIRCUIT FOR ION SENSOR 审中-公开
    离子传感器的模拟读出接口电路

    公开(公告)号:WO2009070003A3

    公开(公告)日:2009-10-15

    申请号:PCT/MY2009000014

    申请日:2009-01-13

    CPC classification number: G01N27/4148

    Abstract: The present invention relates to an analog read out interface circuit for hydrogen ion sensors, an more particularly for ion-sensitive field transistor pH sensor. An analog read-out interface circuit for ion sensor, comprising a constant voltage constant current circuit; a tunable temperature sensor based on CMOS parasitic bipolar transistor; a summation circuit; characterised in that the analog read-out interface circuit is operable with an option to adjust temperature coefficient (Tc) of the tunable temperature sensor and output voltage level.

    Abstract translation: 本发明涉及用于氢离子传感器的模拟读出接口电路,更具体地涉及离子敏感的场效应晶体管pH传感器。 一种用于离子传感器的模拟读出接口电路,包括恒压恒流电路; 基于CMOS寄生双极晶体管的可调温度传感器; 一个求和电路; 其特征在于,所述模拟读出接口电路可操作以具有调整所述可调温度传感器的温度系数(Tc)和输出电压电平的选项。

Patent Agency Ranking