S10108_15 Datasheet, PDF (3/4 Pages) Hamamatsu Corporation – Photo IC diode assemblies

Photo IC diode assemblies
S10108, S10109
Operating circuit examples
Example 1
V
Output example
IL
Vout
CL
R
Illuminance (lx)
Example 2
Output example
V
CL
R
Vout
IL
Illuminance (lx)
Vout = IL × R
KPICC0125EA
Vout = V - (IL × R)
KPICC0126EA
Note:
· The photo IC diode has a specific polarity (anode/cathode). Be careful to make the correct connection.
· The photo IC diode must be reverse-biased so that a positive potential is applied to the cathode.
· Set load resistance R by taking the latter circuit into account.
· To eliminate high-frequency components, we recommend placing a load capacitance CL in parallel with load resistance RL as a low-
pass filter.
1
Cut-off frequency fc = _2πCLRL
· Before using, check whether noise is present in the location where this product is used. Take measures to prevent noise as needed,
for example, by shielding the cable or adding a capacitor (about 0.1 μF between the anode and cathode of the photo IC diode).
3