TLV9062: TLV9062 spice model behaves unexpectedly compared to TLV9052

Josh B

Part Number: TLV9062
Other Parts Discussed in Thread: TLV9052, TINA-TI

I've been working on TLV9052 for a project. Recently noticed that it's easier to get TLV9062 from our supplier. As the part is only higher bandwidth version and pin for pin compatible I expected them to be interchangeable.
A quick simulation shows otherwise however. I have a feeling it's SPICE model error but wanted to check here if I missed anything with these two parts.
Attached is the schematic and AC/Tran simulation results.

over 2 years ago

0 Josh B over 2 years ago

Prodigy 40 points

The link is problematic somehow. Here are the results mentioned.

Schematic

TLV9052

TLV9062 (attenuated for some reason)

0 Robert Clifton56 over 2 years ago in reply to Josh B

TI__Mastermind 25100 points

Hi Cosku,

What simulator did you use to run this?

We only verify our models in TINA-TI and Pspice for TI.

Best Regards,

Robert Clifton

0 Josh B over 2 years ago in reply to Robert Clifton56

Prodigy 40 points

Hi Robert,

It was ngspice. Never had any problems with any of the PSPICE models from TI before only this one seems to be broken somehow. Can I assume the attenuation is a simulation/simulator error and not the expected behaviour for the given schematic?

0 Robert Clifton56 over 2 years ago in reply to Josh B

TI__Mastermind 25100 points

Hi Cosku,

It's very possible. We don't verify that the models will or will not work in any other simulators. I recommend trying it in either TINA-TI or Pspice for TI.

Best Regards

Robert Clifton

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TLV9062: TLV9062 spice model behaves unexpectedly compared to TLV9052