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Please Suggest a TIA for my requirement

Other Parts Discussed in Thread: ONET2591TA

i have a photo diode on which a laser of 10ns pulse width and nearly 2ns rise time falls

i have to digitalize the 10ns pulse and measure its pulse width and confirm its pulse width 

my application is very critical and oriented on measuring the pulse width

i have current limits from 10nA to 100mA (limits can be altered or flexible)

first i thought of going for a non AGC approach where i identified that i am always making the opamp saturated and further not able to maintain the pulse width and not able to reach the dynamic range also


is it possible for me to use the bare die packages like ONET2591TA ??? i did not see even a EVM or kindly suggest me an AGC based TIA where i can achieve a good dynamic range of atleast 40-50dB, but when i see these datasheets its evident that the current noise itself is 200+ nA and maximum current they can bear is 2mA and dont know whether have any protection diodes,

  • Hi Daram,

    The TIAs in the CIF (Communications Interface) group are intended for high speed communication links such as Ethernet, SONET and Fibre Channel. We do not make high power pulsed TIAs, so we do not have any appropriate parts for the customer.

    Best Regards,
    Luis Omar Morán Serna
    High Speed Interface
    SWAT Team