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TIDA-01573: How can I estimate a peak of output voltage of DC pulse having ~10 ns width

Part Number: TIDA-01573
Other Parts Discussed in Thread: LMG1020, LMG1020EVM-006

Hi don.

Thank you so much for your suggestion.It took some time to reply so that I barely knew about this and it helped me a lot.

In "TIDA-01573" , Is the maximum output voltage same as input Vdc max, 75 V? Though that of "EPC2019' is 200 V?

If not, How can I estimate a peak of output voltage of DC pulse having ~10 ns width.

Best regards,

SeeWoo Lee

  • [ High speed and High voltage amplifier ] 

    Hi, I'm a student researching Physics in Univ. Seoul, Korea. 

    I'm looking for an element to amplify 10 ns-width pulse signal to around 100 V  (if possible up to 160 V ) 

    But I couldn't find one having both (high speed) and (high voltage output) ability. 

    Are there available one? or other possible way?

    ----------------------- current situation -----------------------------------------------

    Input signal type: ~10 ns width pulse (5~10 ns)

    Input voltage level: 30 mV ~ 30 V  ( I will choose a proper one to the element )

    output voltage type: AC or DC :  If Peak to Peak voltage is above 160 Vpp,  AC or DC both are ok. 

                                                        If not, I prefer DC 

    Best Regards,

    SeeWoo Lee 

  • Don't think that exists, say you want 1nsec transition on 100V step, that is of course 100V/nsec slew rate requirement - nothing from TI will do that. Not sure where you would go? 

  • Hi SeeWoo,

    I believe Michael is correct. I do not know of a device that will do this.

    Thank you,

    Tim Claycomb

  • Hi, SeeWoo,

    Take a look at this reference design, and the part used in it, LMG1020. It may help you achieve your goals. http://www.ti.com/tool/TIDA-01573

  • Hi don.

    Thank you so much for your suggestion.It took some time to reply so that I barely knew about this and it helped me a lot. 

    In "TIDA-01573" , Is the maximum output voltage same as Vdc max, 75 V? Though that  of "EPC2019' is 200 V? 

    If not, How can I estimate a peak of output voltage of DC pulse having ~10 ns width.

    Best regards,

    SeeWoo Lee 

  • Hi SeeWoo,

    Thanks for reaching out about TIDA-01573, this is the same as the LMG1020EVM-006 which is for switching a laser in the lidar application.

    The laser Anode (AN) sees the bus voltage which can reach up to 75V DC on the EVM. TP6 is the Cathode (K) and is considered the output of this circuit which is also the drain of the EPC GaN. TP6 can be used with the pig tail probe technique, and will allow you to see the 10ns output pulse from the GaN. The gate waveform Vg (TP4) will also allow you to see the gate pulse from the LMG1020.

    Let me know if you have any more questions using LMG1020EVM-006.

    Thanks,

  • Hi SeeWoo,

    Thanks for reaching out about TIDA-01573!

    Please see the below post that starts a new thread focused on the answer to this question.

    Thanks,