Hi
I have to implement a sample and hold circuit. Assuming that I have to inputs :
a voltage value from a source (a photodiode) and another voltage value from another source pulsed with a delay (another photdiode). I have to compute the ration of both.
Of course their values can change during the time but their frequency no, they should behave like the signals in the second and third row of this picture:
**broken link removed**
How can I implement the hold/buffer for the first lasting enough for capturing the second one ?
How do you usually compute a "ratio" of voltage ?
Thanks in advance
I have to implement a sample and hold circuit. Assuming that I have to inputs :
a voltage value from a source (a photodiode) and another voltage value from another source pulsed with a delay (another photdiode). I have to compute the ration of both.
Of course their values can change during the time but their frequency no, they should behave like the signals in the second and third row of this picture:
**broken link removed**
How can I implement the hold/buffer for the first lasting enough for capturing the second one ?
How do you usually compute a "ratio" of voltage ?
Thanks in advance