Hi,

I am looking for an Op-amp with these descriptions.?

I would really appreciate it if you help me find a proper model.

200 V
3~30KHz

开云体育

Check APEX Microtechnology. They make several that meet those requirements and have simulation models for most.

Dave

Hi,

I am looking for an Op-amp with these descriptions.?

I would really appreciate it if you help me find a proper model.

200 V
3~30KHz

-- 
David A. Wayne                                                AA7DW
Desert Microtechnology Associates, Inc. ? IC Design and Technology
16611 N. 91st Street, Suite 103             Analog and Mixed-Signal
Scottsdale, AZ  85260  USA                    CMOS, Bipolar, BiCMOS
Ph: 480-515-0005 x101         Cell: 602-793-4440

If it's for simulation, you can probably use the UniversalOpamp2.

Andy

On 23/02/2021 20:47, Andy I wrote:

If it's for simulation, you can probably use the UniversalOpamp2.

It depends on what "High-power" means. The UniversalOpamp2 has an additional limit to output current (over and above that set by "ilimit") set by the on resistance of the O/P devices being 10Ω in the model, if I remember correctly. If these are edited to something lower, the current capability can be increased. I have saved a special version of UniversalOpamp2 just for such uses.

--
Regards,
Tony

Interesting -- seyedabrishami.se who asked this question has already left the group.

The ADHV4702 is a small signal op amp with operation to 220V and 10MHz GBW. Add an HV current buffer, schematic same as LH0002 and you are set. You'll have to chase down some HV NON and PNP devices as the LTspice library only goes to 150V. And you will likely need a heat sink if there is more than 1mA or so load current.