how to Design a ring oscillator with only 10mV swing?

[liletian]

Hi Guys
Does anyone have idea how to design a ring oscillator with only 10mV swing?
Thanks

 

[FvM]

Why should we?

 

[liletian]

Why should we?

Can you take it as a chanllenge question?
thanks

 

[FvM]

Can you take it as a chanllenge question?

Yes, but personally, I'm not very motivated by abstract challenges.
Apart from the design purpose, what's the intended technology? CMOS? What's the supply voltage?

 

[liletian]

Yes, but personally, I'm not very motivated by abstract challenges.
Apart from the design purpose, what's the intended technology? CMOS? What's the supply voltage?

The supply voltage is 3V.

I do not know the technology

I kind of think it is probably to use bipolar devices. But both CMOS and bipolar can be used for this question.
Any ideas?
thanks

 

[radiohead]

Yes you could design a full-swing ring oscillator and use a resistive divider at the output for reducing the swing size.

 

[tony_lth]

Also you can use OpAmp for volatge divider.