Hi all,
I'm on the lookout for a linear piezo amplifier/driver circuit, does anyone know of a good reference for this? I'm specifically not interested in the PWM style ones, I really need it to be a linear amplifier. My requirements are:
0-10v input
BW > 500k, ac coupled is fine as the lowest input signal of interest is 10k
Drive voltage 0 - 60V minimum, but I would be perfectly happy with 60V or however close one can get with a 60V power rail
Drive current less than 20mA, likely less than 10mA
Of course I could live with +/- rails and output as well. Right now I'm looking at a mosfet push-pull stage on the front of an op-amp. Commercial units are for sale all over the place, so I was hoping someone could enlighten me on any tricks here, or perhaps point me to an old service manual which is online
Thanks!