PS25014A2 Datasheet, PDF (1/3 Pages) List of Unclassifed Manufacturers – APPLICATION BOARDS FOR EPIC SENSOR PS25402

PS25014A2, PS25014B2
Application Boards for EPIC sensor PS25402
Features
• Ultra high effective input impedance, typically 20GΩ.
• Wide operating voltage from 4.0 to 8.0V.
• Operating temperature range 0 to 50^oC.
• 200pF load drive capability.
• Ground referenced output.
• DC signal rejection.
• Dual sensor board allows differential operation.
Applications
• Movement sensing due to electric field
disturbance
• Electric field and potential sensing.
Figure 1: PS25014A2 single channel board carrying a
single PS25402 sensor
Figure 1
Figure 2: PS25014B2 dual channel board carrying
two PS25402 sensors
Description
The PS25014A2 and PS25014B2 are single and
dual channel application boards for the
demonstration of the Plessey PS25402 electric
potential sensor.
The PS25402 electric potential sensors on these
boards allow the measurement of a wide range of
electric potential sources. Two sensors may be used
differentially to determine electric field. The sensors
incorporate 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
an inert dielectric that provides environmental
protection. These sensors are not intended for direct
coupling to the surface of the skin. In the case of
electrophysiological sensing the following sensors
should be used:
ECG
Sensor
PS25201
PS25201A
PS25202
PS25203
PS25204
-3dB
Voltage
bandwidth gain
mHz
200
50
200
50
50
50
200
10
50
10
Application
Boards
Single/Dual
PS25012A
PS25012B
PS25012A1
PS25012B1
PS25012A2
PS25012B2
PS25012A3
PS25012B3
PS25012A4
PS25012B4
The PS25402 sensor demonstrated on these boards
is an integrated assembly designed for surface
mount assembly on a motherboard.
The application boards provide a regulated +2.5V
and generated -2.5V supplies that are used to
operate the sensor. This allows the boards to
demonstrate the sensors from a wide, single sided,
power supply voltage while the output of the sensor
can cover the range ±2.1V. The boards are
connected by a high reliability five pin connector.
Data Sheet 291515 issue 1
Plessey Semiconductors Ltd.
Design & Technology Centre, Delta 500, Delta Business Park, Great Western Way, Swindon, UK SN5 7XE
Tel: [phone]
Fax: [phone]
Web: www.plesseysemi.com
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