page_title: Ring oscillator
hierarchical_section_title: Ring oscillator
caption_attribution_description: English: Ring oscillators fabricated on silicon using PMOS MOSFETs.
context_page_description: A ring oscillator is a device composed of an odd number of NOT gates in a ring, whose output oscillates between two voltage levels, representing true and false. The NOT gates, or inverters, are attached in a chain and the output of the last inverter is fed back into the first.
context_section_description: A ring oscillator is a device composed of an odd number of NOT gates in a ring, whose output oscillates between two voltage levels, representing true and false.  The NOT gates, or inverters, are attached in a chain and the output of the last inverter is fed back into the first.
caption: Ring oscillators fabricated on silicon using p-type MOSFETs.
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