> >I haven't got the hang of gain-bandwidth-product yet, current mode seems to >have changed all the rules too. GBP = GAIN * Bandwidth (hz) An op-amp with a GBP of 1,000,000 will give you a gain of 1000 with -3db at 1000 hz >On the subject of op-amps does anyone know a unity gain stable power op-amp? LM-12 :) How much power did you really want? -- Where's dave? http://www.findu.com/cgi-bin/find.cgi?kc6ete-9 -- http://www.piclist.com hint: PICList Posts must start with ONE topic: "[PIC]:" PIC only "[EE]:" engineering "[OT]:" off topic "[AD]:" ad's