Patent ID: 7928810

Claim:
An oscillator arrangement comprising: a first terminal coupled by a quartz resonator to a second terminal of the oscillator arrangement and by a first capacitor to a reference voltage terminal; the second terminal being coupled by a second capacitor to the reference voltage terminal; and a differential amplifier including: a first input connected to the first terminal of the oscillator arrangement, a second input connected by a direct voltage source to the reference voltage terminal, and an output connected to the second terminal of the oscillator arrangement; and a resistor is connected between the first and the second terminal of the oscillator arrangement and including a first transistor including: a first terminal connected to the first terminal of the oscillator arrangement, a second terminal connected to the second terminal of the oscillator arrangement, and a control terminal connected to the reference voltage terminal; wherein the direct voltage source includes: a second transistor connected at a control terminal and at a first terminal to the reference voltage terminal and at a second terminal to the second input of the differential amplifier for providing a direct voltage, and a second current source which couples the second terminal of the second transistor to a power supply voltage terminal; and wherein the first and the second transistors are field-effect transistors of the same conductivity type.