hiii
we used the PA86EU opamp manufactured by Cirrus Logic / APEX
We have given input 2.5V and amplified it by 40 times (to 100V)
It works very fine and the gain is also resistor dependend
We can obtain output upto 250V (sigle supply) or +125V, -125V dual supply
We can control the Slew rate too.
Just check the data sheet at
PA86 datasheet
and also find out if they are obsolete now.
Also try PA79 (datasheet
PA79)
PA241,PA93,PA15 ,PA97,PA91,PA85,PA94,PA90,PA83A are some power op amps which may serve your purpose.
All these are voltage amplifiers, i.e., they have low current output.
Hope this helps