Jim Thompson wrote:

On Sat, 04 Aug 2007 00:26:36 GMT, Joerg
wrote:


Ok, Chris and Rich, you were right, I was indeed on pin 10.

So, I measured the supply current. Here is pin 10 (yellow) and the
supply current (blue). 100mV equals 100uA. The sag is indeed due to the
sluggish inverter and the thing peaks up to a whopping 400uA of cross
current. That is huge.


I have versions of...

http://analog-innovations.com/SED/CMOS-Osc-NoClip.pdf

without the attenuator ("no-clip"), since there's no ESD protection
needed inside a chip, that run at 2MHz, consuming 1uA ;-)


Nice. I usually do mine with a 40106. Not 1uA but under 10uA which would
be way sufficient here. However, I had to get about 60 parts onto the
area of a postage stamp and I didn't have any "good" inverters left over
anywhere. This 4060 oscillator sure is a disappointment.

--
Regards, Joerg

http://www.analogconsultants.com