PS25012A Demo Board for PS25201 EPIC Contact Sensor

PS25012A Application Board for PS25201 EPIC Contact Sensor

PS25012A is a single-channel application board for the demonstration of Plessey’s PS25201 electric potential sensor, which allows the measurement of a wide range of electric potential sources from electrophysiological signals through to spatial electric field. The sensor incorporates a DC block feature that allows the DC component of an applied signal to be rejected while maintaining good low frequency response. The electrode surface of the detector is passivated with a thin dielectric that allows the direct application to a test surface. In the case of contact with skin, there is no need for electrically conductive gel. The PS25201 sensor on this board is a surface-mount integrated assembly. The application board provides the regulated +2.5V and generated -2.5V supplies that are used to operate the sensor. This allows the board to demonstrate the sensors from a wide range, single-sided power supply voltage, while the output of the sensor can cover the range ±2.1V. The board is connected by a high reliability five pin connector. Two single channel PS25012A boards may be used to generate a differential signal. 

Applications

• Electrophysiological signal detection
• ECG/EOG/EMG/EEG,
• Electric field and potential sensing
• Movement sensing, etc.