How to make constant AC source?

[sgugan]

How to make constant AC current source?

I need a constant AC current source of 250KHz, 100mA... Any design idea???

 

[FvM]

Voltage range, required Ri, accuracy, acceptable distortion?

 

[sgugan]

thanks for your reply
voltage range :15V (approximately), Ri>100k, accuracy = .5%, distortion = 5%

 

[Orson Cart]

A power op-amp should be able to do this without any problem, Burr-Brown have a range of these as do other makers.
Regards, Orson Cart.