Sensor _ Passive Infrared Sensor

E931.06 | Single Channel PIR Signal Processor


The E931.06 integrated circuit is designed for interfacing Passive Infra Red (PIR) sensors with micro-controllers or processors. A single wire Data Out, Clock In (DOCI) interface is provided for interfacing with a micro-controller. Multiple devices can easily be operated at the same time. One PIR sensors ceramic elements connect directly to the PIR inputs. The PIR signal is converted to a 14 bit digital value. The E931.06 contains an on chip temperature measurement circuit with a resolution of better than 0.05K. The PIR sensor voltages and the temperature value are supplied to an external microcontroller through the DOCI interface.


  • Direct connection to PIR sensor elements
  • Temperature measurement
  • Differential PIR sensor input
  • Low Current Consumption
  • Excellent power supply rejection
  • High dynamic range


  • Integration with PIR sensor elements
  • High end PIR systems
  • Building management

Ordering Information

Application Diagram

Single Channel PIR Signal Processor