PS25451 EPIC Ultra High Impedance Movement Sensor

Plessey Semiconductors Electric Potential Integrated Circuit (EPIC) product line targets a range of applications.

 

The PS25451 is an ultra high impedance noncontact solid state electric potential sensor. It can be used to detect field disturbance due to the movement of a near-by object. This functionality can be employed in a range of applications including security motion sensors and non-contact electric switches for lighting, door opening, toys etc

 

The device uses active feedback techniques to both lower the effective input capacitance of the sensing element (Cin) and boost the input resistance (Rin). These techniques are used to realize a sensor with a frequency response suitable for remote sensing applications.