公开(公告)号：US20230275545A1

公开(公告)日：2023-08-31

申请号：US17681945

申请日：2022-02-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Muawiya Ali AL-KHALIDI ,  Angelo William PEREIRA ,  Pinar KORKMAZ ,  Paul David CURTIS

IPC: H03B5/04 ,  H03K5/24 ,  H03K3/03

CPC classification number: H03B5/04 ,  H03K5/24 ,  H03K3/0315

Abstract: An oscillator circuit includes a comparator having first and second inputs, the first input configured to be coupled to a reference voltage. The oscillator circuit also includes a capacitor and a first current source. The capacitor is coupled between the second input and ground. The first current source is coupled between a supply voltage terminal and the capacitor. The first current source is configured to generate a current to the capacitor that is proportional to absolute temperature.