OPA2992: OPA2992 THD+N vs Frequency plot

TonyMCC

Intellectual 760 points

Part Number: OPA2992

Do you have a THD+N vs Frequency plot you can provide for the OPA2992 device ?

Ideally I would like to see THD+N vs frequency results out to 100khz.

Thanks.

over 3 years ago

0 Robert Clifton56 over 3 years ago

TI__Mastermind 27460 points

Hi Tony,

Funny you are asking for the THD+N vs Frequency plots. We are planning on some THD+N plots in the future. I believe I have a few preliminary THD+N vs frequency curves but they likely stay within the audio range (20Hz-20kHz). Give me a few hours to see if I can find it!

Is there a reason you need it to go out to 100kHz? Looking to use the OPA2992 in an ultrasonic application?

Best Regards,

Robert Clifton

0 TonyMCC over 3 years ago in reply to Robert Clifton56

Intellectual 760 points

Thanks Robert.

The application is a vibration analysis that extends a bit above the audio range. If all you had was frequency range results up to 20khz that would be helpful to see.

Tony

0 Robert Clifton56 over 3 years ago in reply to TonyMCC

TI__Mastermind 27460 points

Hi Tony,

Sorry for the delay. Here's some data we collected. Just for the disclosure, these aren't official datasheet curves that come from the datasheet. The parameters are a supply voltage of 40V with an 80kHz bandwidth.

Hope this helps! Let me know if there's anything you need!

Best Regards,

Robert Clifton

0 TonyMCC over 3 years ago in reply to Robert Clifton56

Intellectual 760 points

Thanks so much Robert.

What is the difference between these two plots its a bit hard to read even when magnified ?

+1 Robert Clifton56 over 3 years ago in reply to TonyMCC

TI__Mastermind 27460 points

Hi Tony,

Sorry about that! They are a bit small. The one on the left has the gain = -1 with 10kΩ, 2kΩ, 600Ω, and 128Ω loads, while the one on the right has gain = 1 with the same loads.

Best Regards,

Robert Clifton

Amplifiers

Amplifiers forum

OPA2992: OPA2992 THD+N vs Frequency plot