Hi Aubrey,
Thanks for your interesting article and your support at all. I thing the source current in your article is extremly powerfull an huge comparing to what I need.
In fact I'am looking for an AC source current with a amplitude of about 10 to 20mA under a frequency between 50KHz and 100KHz. This is to measure bioimpedance (with resistance up to 10MOhms und capacity up to 100nF). Therefor the source should be stable so that amplitude should remain constant, wenn the load drop down to some Ohms.
Hope the informations are sifisant.
Best,
Alain