OPA388: Voltage Noise @200kHz

itabi

Part Number: OPA388

Hi,

I have a question about OPA388.
Is there data of Voltage Noise at 200kHz?
I'd like to confirm whether it has some spurious at 200kHz.

Best Regards,
itabi

over 6 years ago

0 Marek Lis over 6 years ago

TI__Guru 60610 points

Itabi,

Below plase see a raw data showing OPA388 input voltage noise spectral density up to 10MHz. In the graph you may notice the variation in the peak-to-peak values caused by changing gains at f=10kHz and f=100kHz. A chopper noise can be seen at around 200kHz mark and the charge pump noise past the 10MHz.

0 itabi over 6 years ago in reply to Marek Lis

Expert 1295 points

Hello Marek Lis,

Thank you for your reply.

Best Regards,
itabi

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OPA388: Voltage Noise @200kHz