Brochure

iC-LQNP

PULSE AND AC LIGHT SENSOR

Am Kuemmerling 18 • D-55294 Bodenheim, Germany

Tel. +49 61 35 / 92 92-300 • Fax +49 61 35 / 92 92-19 2 • http://www.ichaus.com

iC-LQNP is a sensor for pulse and alternating light with a

monolithically integrated photodiode. The device supersedes

conventional photoreceivers, such as those in light barriers, for

example.

Alternating photocurrents are amplified whereas the photo-

currents caused by background light are electronically sup-

pressed with over 60 dB (at 100 Hz).

Applications

– Amplification of pulse and AC light signals

– Receiver for through beam, reflex and proximity sensors

Features

– Fast response amplifier with on-chip photodiode

– High interference immunity due to monolithic design

– Active photodiode area of ca. 1 mm²

– Suitable for visible light and near infrared

– Integrated bandpass filter with 140 kHz center frequency

– Maximum gain obtained for pulse light of 1.4 µs and upwards

– High LF and DC (ambient) light suppression (70 klx)

– Transfer characteristics irrespective of ambient light level

– Fast recovery from flashes

– Analog current source output, transimpedance can be set by

external resistor

– Single 5 to 12 V supply, low power consumption also with

bright ambient light

– Options: customised COB packages

PAGE 1
iC-LQNP PULSE AND AC LIGHT SENSOR iC-LQNP is a sensor for pulse and alternating light with a monolithically integrated photodiode. The device supersedes conventional photoreceivers, such as those in light barriers, for example. Alternating photocurrents are amplified whereas the photocurrents caused by background light are electronically suppressed with over 60 dB (at 100 Hz).
PAGE 2
iC-LQNP PULSE AND AC LIGHT SENSOR The integrated amplifier forms a bandpass characteristic without using any external components. The highpass suppresses ambient light and low-frequency alternating light and the lowpass reduces high-frequency noise. Spectral Responsivity For visible light or near infrared the highest sensitivity for alternating light signals is reached at approximately 140 kHz; for pulse light this is reached at 1.4 µs and upwards.