Patent ID: 6337605
Filing Date: 2002-01-08
Classification: H01L,H03K,H03L

Abstract:
An oscillator intended to supply a periodic electric voltage at a predetermined frequency, said oscillator including:a reference source providing a reference voltage, the reference source including a resistor linked to affect the supply of said reference voltage and formed to give said reference source a first temperature coefficient, and supply means receiving said reference voltage and supplying said periodic voltage at said predetermined frequency, said supply means having a second temperature coefficient equal in absolute value to the first temperature coefficient so that the temperature variations of the reference source compensate for the temperature variations of the supply means so that said predetermined frequency of the periodic voltage remains independent of the temperature, wherein said resistor is formed of a first resistor formed from silicon having a first type of conductivity, and a second resistor formed from silicon having a second type of conductivity so that connecting said first resistor to said second resistor gives the reference source a first temperature coefficient equal in absolute value to the second temperature coefficient of the supply means.