LMH5401: When simulating LMH5401 in Pspice For Ti, the gain is inconsistent with the theoretical calculation.

haiwen chen

Part Number: LMH5401

Tool/software:

I performed an AC simulation of a circuit in PSpice for TI, and the gain was only 17 dB. However, according to theoretical calculations, the gain should be $G ain = (175 + 25) /50 = 4$ . What could be the reasons for this discrepancy?

2 months ago

+1 Hruday Kumar Mudireddy 2 months ago

TI__Expert 4400 points

Hi Chen,

Which nodes are you using to compute the gain based on above schematic?

I see issue with supply voltages. LMH5401 supports 5.5V supply max.

regards,

Hruday

0 haiwen chen 2 months ago in reply to Hruday Kumar Mudireddy

Prodigy 10 points

Thank you! I change the power supply, then the problem solved.

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LMH5401: When simulating LMH5401 in Pspice For Ti, the gain is inconsistent with the theoretical calculation.