Hi,
has anyone used this photodiode?
I'm talking about a single sensor, powered at 3.3V with an Rload of 562 ohm.
There are several things I can't understand:
- the ds states the output may saturate if the illumination is too high. Instead the output current will suddenly fall to 0V when I increase the light on the sensor too much.
- just before that condition, the maximum current read is about 2.7 mA, very far from the 6 mA allowed.
- the ds also states the output voltage compliance is 300 mV below the supply voltage but the figure 7 shows this is true only for very small currents (< 400 uA). At 1 mA it raises at 500 mV and there is no indication about higher currents.
I may increase the supply voltage to have the full span I need (2.048 V) but I can't deal with the falling of output current when exposed to a lot of light.
I can't understand why it goes down... it shouldn't *saturate* - that is the output current won't increase anymore? The figure 9 doesn't show any falling edge on the right!
Thanks in advance Marco