iC-LQNP
PULSE AND AC LIGHT SENSOR
Rev B1, Page 2/10
DESCRIPTION
iC-LQNP is a sensor for pulse and alternating light
with a monolithically integrated photodiode. The de-
vice supersedes conventional photoreceivers, such
as those in light barriers, for example.
Changes in the photocurrent are amplified whereas
the photocurrents caused by background light
are electronically suppressed with over 60 dB (at
100 Hz).
The integrated amplifier forms a band-pass charac-
teristic without using any external components. The
high pass filter suppresses ambient light and low fre-
quency alternating light and the low pass filter re-
duces high frequency noise.
For visible light or near infrared the highest sensi-
tivity for alternating light signals is reached at ap-
proximately 140 kHz; for pulse light this is reached
at 1.4 µs and upwards.
The transimpedance can be selected within a range
of approximately 1 to 10 MΩ via the external load re-
sistor.
iC-LQNP is available as a 4-lead TO18 metal can
package with a glass lens or flat window. Customised
COB versions are also possible.
ICHAUS [ IC-HAUS GMBH ]
