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TINA/Spice/OPA615: Output dropout, peak-holding circuit simulation

James Zhan
Expert 4365 points
Part Number: OPA615
Other Parts Discussed in Thread: TINA-TI,

Tool/software: TINA-TI or Spice Models

Hi all, this inquiry is from the deyisupport (Chinese version of E2E community):

Using the OPA6165 to do the peak-holding, the schematic uses the figure 48 in the datasheet without the negative peak-holding as the attachment show. When input a 60ns pulse, the output voltage has a a few hundreds of mV dropout at the falling edge of the input pulse. Please help with the question, thanks.

OPA615_FastPulsePeakDetector.TSC