Relaxation oscillator with improved temperature stability

摘要

Certain aspects of the present disclosure generally relate to a low-power relaxation oscillator. Certain aspects provide a circuit for generating an oscillating signal. The circuit generally includes a comparator, a first current source coupled to a reference potential node, a first resistive element coupled between the first current source and a voltage rail, a node between the first current source and the first resistive element being selectively coupled to a first input terminal of the comparator, a second current source coupled between a second input terminal of the comparator and the voltage rail, and a first capacitive element selectively coupled between the second input terminal of the comparator and the reference potential node.