OPA4202: Capacitive Loads

iván Espinosa Sosa

Part Number: OPA4202

Tool/software:

Hello,

I want to set up the following circuit, where the input is an AC signal, with an amplitude between 40mV and 5V, and a frequency between 30Hz and 3kHz.

I want to know if the capacitances C11 and C12 I change them to 20uF, the circuit will still be stable?

3 months ago

0 Chris Featherstone 3 months ago

TI__Mastermind 23975 points

Hello,

Please see our detailed video series on how to check for stability in simulation. There is a stability section that will walk you through the simulation steps. We offer Tina Ti free of charge to our customers and the link can be found below.

https://www.ti.com/video/series/precision-labs/ti-precision-labs-op-amps.html

https://www.ti.com/tool/TINA-TI

Some additional resources on checking for stability and compensation can be found here:

https://www.ti.com/lit/ta/sszt999/sszt999.pdf?ts=1733932736519&ref_url=https%253A%252F%252Fwww.google.com%252F

https://www.ti.com/lit/an/sboa418/sboa418.pdf?ts=1733861357821&ref_url=https%253A%252F%252Fwww.google.com%252F

Let us know if we can be of further assistance.

Best Regards,
Chris Featherstone