ELMOS Semiconductor AG

Data Sheet

QM-No.: 25DS0091E.00

INTEGRATED CIRCUIT FOR PIR SMART SENSOR

E910.97

1/9

This document contains information on a pre-production product. ELMOS Semiconductor AG reserves the right to change specifications and information herein without notice.

PRELIMINARY INFORMATION - JUL 28, 2011

Features

Digital Sensor Assembly with E910.97

Applications

Traditional analog

PIR Sensor solution

New Smart PIR Detector with E910.97

The E910.97 PIR Controller results in a single compo-

nent Solution for a Motion Sensor

General Description

The E910.97 integrated circuit combines all required

functions for a single chip Passive Infra Red (PIR) motion

detector. Motion detection is signaled through the push-

pull REL output. A digital input OEN enables REL output.

The E910.97 interfaces directly to a PIR sensor element

via a high impedance differential input. The PIR signal is

converted to a 15 bit digital value. The parameters for

sensitivity and timing are set by connecting the corre-

sponding inputs to DC voltages. The voltage levels on

the inputs are converted to digital values with 7 bit res-

olution. All signal processing is performed digitally. The

E910.97 is assembled with a pyro-ceramic element in a

hermetically sealed package.

Microsystems On Silicon

Member of ELMOS Semiconductor AG

Comp. &

Alarm Event Logic

BAND GAP REF

PIN ADC

Test Control

Logic

ON TIME

SENS

ADC

E910.97A

BPF

Comp. &

Alarm Event Logic

BAND GAP REF

PIN ADC

Test Control

Logic

ON TIME

SENS

ADC

E910.97A

VDD

OEN

GND

REL

OSC