Hi guys, I need to have a constant current of 1uA flowing thru' two terminals in = a circuit. What would be the easiest way to do this? One way I know would involve a 3 pin voltage regulator, with the = (normal) ground connected to the output thru' a resistance instead. = Would this approach work for a current this small? Or is there an easier way to do it?=20 BTW, the actual amount of current does not have to be very precise. Just = in that magnitude, but should be pretty stable. Any advice would be greatly appreciated. Regards, Anand -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads