Current and voltage source that is unaffected by temperature, power supply, and device process

摘要

An integrated circuit in accordance with one embodiment of the invention includes an oscillator circuit and a source circuit. The source circuit outputs a reference voltage and a bias current, wherein the reference voltage changes by substantially the same proportion as the bias current. The oscillator circuit is coupled to receive the reference voltage and the bias current from the source circuit. The oscillator circuit outputs an oscillating electrical signal.