Keithley 6487 Reference Manual page 330

G-24 Applications Guide
P.I.N. (Positive Intrinsic Negative) diodes respond as shown in
In total darkness, Avalanche diodes respond as shown by the solid line in
Notice the small irregularity of the curve while sweeping around 10-12V. This irregularity
is made larger under additional applied light (see dashed lines of
Figure G-20
PIN photodiode leakage
P.I.N. photodiode
I
0
Figure G-21
Avalanche photodiode leakage
Avalanche photodiode
I
10 50
0
V
5
V
LEGEND
More
Light
100
Model 6487 Reference Manual
Figure G-20.
Figure G-21.
Figure G-21).