Microsystems on Silicon

Integrated Circuits for Digital PIR ADCs

This comprehensive range of signal processor ICs provide cost effective solutions for various motion and gas detector applications.
The new generation digital detectors combine the sensor element(s) and the PIR signal processor in one package. The signal from the sensor element and the on-chip temperature (= ambient temperature) are converted to digital values. An external microcontroller (µC) connected to the digital sensor via the serial DOCI (Data Out – Clock In) interface contains the software and therefore the functionality of the equipment.

Digital PIR sensor IC block diagram

All MOS products are CMOS based and manufactured and tested to the highest standards.

The new generation digital and smart detectors based on MOS integrated circuits eliminate the need for any analog circuitry.

One-wire DOCI Interface PIR Signal Processor ICs

Device name E910.91 E931.06 E910.62
Differential PIR input channels 1 1 2
Filter resolution Butterworth, HPF, 6.5 µV Butterworth, HPF, 6.5 µV Butterworth, HPF, 6.5 µV
Temperature register None 80 counts/K 80 counts/K
Power supply 2.7 V to 5 V 2.7 V to 3.6 V 2.7 V to 3.6 V
Supply current 40 µA 10 µA 30 µA
PIR voltage data bits 14 14+14 14+14+14
DOCI™ interface • • •

For datasheet and pricing enquiries contact sales@mos.co.za