I need help in designing a CMOS Relaxation Oscillator .... - Electronic Circuits Projects Diagrams Free

issam · 3rd January 2004, 11:37 AM

Hi!!! I need help in designing a CMOS Relaxation Oscillator with threshold detector. It should be able to generate 1 MHz for 1 uA and with threshold levels between 1.5v and 3.5v.
how can I evaluate f=F(i) and What kind of a circuit do you think I need for this application. I was thinking of maybe a differential amplifier followed by an inverter (for the threshold detector). What amount of gain do I need to set for the diff amp incase I select that :?
....thank you...

Russlk · 4th January 2004, 05:33 AM

What do you mean "relaxation oscillator"? Do you want a sine wave or square wave output? What threshold do you want to detect? Once the problem is defined, the solution is simple.

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3rd January 2004, 11:37 AM	(permalink)
issam	I need help in designing a CMOS Relaxation Oscillator .... Hi!!! I need help in designing a CMOS Relaxation Oscillator with threshold detector. It should be able to generate 1 MHz for 1 uA and with threshold levels between 1.5v and 3.5v. how can I evaluate f=F(i) and What kind of a circuit do you think I need for this application. I was thinking of maybe a differential amplifier followed by an inverter (for the threshold detector). What amount of gain do I need to set for the diff amp incase I select that :? ....thank you...

4th January 2004, 05:33 AM	(permalink)
Russlk	What do you mean "relaxation oscillator"? Do you want a sine wave or square wave output? What threshold do you want to detect? Once the problem is defined, the solution is simple. __________________ see my website: www.geocities.com/russlk