LTC6268-10 propagation delay time

Hi:   Actually, the H10720 was the PMT featured in my article on the LTC6268... which you can find here:

LT Journal V25N2 LTC6268 Brisebois

I did not measure the delay, as this is usually dominated by the total of the distance of the laser, the PMT, and the cabling.   Output pulse half-width was about 2.2ns.  So I think the LTC6268-10 should be fast enough for your 10ns pulse.  With a PMT, you should not need 20k Ohms of gain.

I still have some boards left over from that project, if you want one.

Thank you Badges:

I think the ac coupled capacitance increased the delay ,later I will test it.Then I also want to 20k Ohms of gain or larger ,maybe 100k is good.What  amplifier I can select?Thank you very much.The pulse width is 10ns.

Best regards

Bingbing

Thank you Badges:

Can you give me the scheme and PCB layout for the H10720 PMT design?Thank you very much.

Best regards

Bingbing