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Tool/software: TINA-TI or Spice Models
Hi
Simulating the TIA (OPA858) and comparator (tlv3501) and not obtaining results as excepted. As individual circuit the simulation is good though once theTIA and the comparator circuits are combined the simulation fails.
OUTPUT: TIA and Comparator separated
OUTPUT: TIA and Comparator combined
PD_Common_C_w_comp.TSCThanks Hasan though the TIA is configured as an inverting. Looking at the "OUTPUT: TIA and Comparator separated" waveform the TIA is operating properly. It is when the TIA is connected to the comparator that the simulation of the TIA fails. I attached circuit file
Hey David,
Feedback should be between the output and the inverting node for both inverting and non-inverting configurations. I've attached an updated version of your schematic, you will see the expected results:
Best,
Hasan Babiker