I'm using a LT6233-10 for my project and I try to test it before.
My need is 2MHz bandwith with a Gain at 200 and enable pin.
I'm facing an issue about the Bandwidth. the schematic is below.
I try to test it as a buffer, it work, I can have the same amplitude until the 2MHz with an input at 1Vpp
Then with this schematic, the signal is cut around 500KHz.
The input is a function generator, HiZ output. 20mVpp with an offset at 1.65V.
Vref = 1.65V
Vcc = 3.3V (I also try 5V, always single supply)
I try with 40 gain.
A also try with a non inverting mouting, same issue.
If I chose a lower gain, 4 for exemple it work.
The datasheet give this amplifier for 320MHz GBW.
I don't understand where I'm wrong. I test it with LTspice and it work.
please, if anyone see where I'm wrong, con you helpe me please.?