AD829 compensation capacitor

Hi, volcano.

The recommended capacitor values are only guaranteed in ±15V supply voltage. Please use this supply voltage and let me know of your result. Also, if you could share your schematic with the AD829, that would be much better.

Regards,

Anna

Hi, Anna.

The above result is tested in ±15V supply voltage. My schematic and PCB(four layers) is shown below.

(four layers: signal, power, ground, signal)

Wait for your advice and explanation.

Regards,

volcano

volcano,

  What are the signal levels?  Show us the scaling on the x and y axis of your scope shot.

Harry

Anna,

I finally find that the real +Vs pin voltage is +13V, so the supply voltage is +13V, -15V. Then I use the correct supply voltage ±15V, set CLEAD=100pF and CCOMP=25pF, and get the correct signal. Thank you for your sincere help.

volcano

Harry,

I finally find my mistake, the wrong supply voltage. Thank you for your concern.

volcano