A 66 uW 86 ppm/C Fully-Integrated 6 MHz Wienbridge Oscillator With a 172 dB Phase Noise FOM KU Leuven
This paper presents the design of a new Wienbridge topology. Its phase noise performance, low temperature dependency and low power consumption make it suitable for use in wireless sensor nodes and time-based sensor readout circuitry. The noise as well as temperature behavior of the oscillator is explained using extensive calculations. Measurements on 7 samples of the same batch show a temperature stability of 86 ppm C and a measured spread of ...