Plessey Semiconductors launched their PS25203 EPIC sensor. The Plessey PS25203 features low gain and high input impedance. The sensor helps car manufacturers build low cost, reliable detection systems for automotive applications. It is ideal for contactless ECG measurement such as driver fatigue monitoring or seat occupancy. The PS25203 EPIC sensors are in commercial production. The PS25203 is priced at less than $2 each in volume.
The Plessey PS25203 EPIC sensor features new technology that works by measuring tiny changes in an electric field. This is similar in the way a magnetometer detects changes in a magnetic field even at a distance and through clothing. By adjusting the DSP and amplification circuitry, the PS25203 sensor can be tuned for detection at a distance for automotive applications. The new EPIC sensor is supplied in a custom 4-pin PCB hybrid package measuring 10.5mm x 10.5mm x 3.45mm.
The new EPIC sensor can be used in automotive applications. For example, the sensor can be used to monitor drivers for health and alertness by detecting heart rate and respiration or determining the occupancy of the car to adjust the ride, handling and air bag deployment depending on the size and location of occupants. The EPIC sensor electrodes can be easily and discretely incorporated inside the seat backs to acquire the necessary biometric data.
The PS25203 EPIC sensor does not require physical or resistive contact to make measurements. The sensor works at normal room temperatures and functions as an ultra-high, input impedance sensor that acts as a highly stable, extremely sensitive, contactless digital voltmeter to measure tiny changes in the electric field down to milliVolts. The sensor can be integrated on a chip with other features such as data converters, digital signal processing and wireless communications capability.
More info: Plessey Semiconductors Limited