New optoelectronic devices for the Mid-Infrared spectral range open completely new possibilities for portable sensors creation. Using Mid-infrared LED-PD optopairs allows developing an instrument that is smaller, less expensive and versatile.

PAb Photodiode Preamplifier Board



PAb preamplifier is oriented for amplification and conversion of the pulse current signal generated by LMSNT photodiodes (PDs). Preamplifier enables PD operation at photovoltaic mode (with no reverse bias) – mode in which photodiode becomes the source of photocurrent. PD photocurrent is amplified and converted by preamplifier into voltage signal. The resulted voltage signal has the same form as the photocurrent, i.e. if the photocurrent from photodiode is a meander, the converted signal will be a meander too with the same frequency and pulse duration. Current into voltage conversion coefficient is constant and depends on given photodiode.


✔ LmsXXPD-XX photodiode models;
✔ LmsXXPD-XX-R photodiode models;
✔ LmsXXPD-XX-RW photodiode models.


Main characteristics
Parameter Value
Input voltage Stabilized +5 V
Voltage tolerance
-5..+5 %
Board dimensions 10x26 mm