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P2P solution for EL8403ISZ-T13

Other Parts Discussed in Thread: LMH6574, LMH6722, OPA4872, OPA2830

HI TIer, 

Do you have a P2P solution for EL8403ISZ-T13? 

Thank you, 
Jason

  • Hi Jason,

    I do not think we have a P2P part with the exact specs.   Could you elaborate on your specification needs for the device?  Do you need a quad-amp configuration with the exact slew rate/BW performance of the Renesas/Intersil IC?

    I can help you find a part that performs close to what you need or fits a certain pinout if you can give me a bit more detail.  Share any preliminary circuits or spec needs using the 'insert' tool.

    Best,

    Alec

  • Hi Alex, 

    The VS+ is powered with 5V and the two outputs (OUTA and OUTB) are used to drive the gates of the FETS switches. This is part of our test equipment and we are using it to turn on some load for diagnostics. Since this EL part is becoming obsolete, and it's okay if it's not pin 2 pin but we need to have at least equal or better BW and slew rate comparing to the old part. 

    Thank you, 
    Jason

  • Hi Jason,

    Thank you for the details!  I will take a look at get back to you.  For right now, I think the 4-channel options which meet or exceed slew & BW spec are going to be muxed; the options are the OPA4872 & LMH6574.  There is a near P2P in the LMH6722, but it has a 400MHz -3dB BW.

    I will keep looking and update you if I think of anything else.  I am confused about the EL4803, as that IC is 14pin/quad amp configuration.  Your schematic looks a lot more like the dual amp EL8203, which I will look into good replacements for.  You might just be only showing two of the four channels, which would also make sense.  

    If you could just confirm whether you are looking for a quad or dual amp, that would help me out a good bit.

    Best,

    Alec

  • These Elantec datasheets where done with some exaggerations, the part is about a 180Mhz gain bandwidth 

    Looking quickly for a 500V/usec slew rate NRI and RRO device, look at the OPA2830 (not many folks did quads in this speed range, so if you can use a dual that would help a lot)

    There was a line of OPA3xx CMOS parts that are 5V only and might have something, problem will be the 60m output drive of the EL part. 

  • And once again the BOM tool comes up empty, oh well, some of us still have industrywide parametric databases - if I get time I will take a look after the dual vs. quad question is answered - quads might come up empty for a good cross at this speed. You get into package parasitic issues and more crosstalk so most of us steered away from that permutation.