公开(公告)号：US10054969B2

公开(公告)日：2018-08-21

申请号：US15259368

申请日：2016-09-08

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Anand Subramanian ,  Anand Kannan ,  Sunil Rafeeque ,  Venakatesh Guduri

IPC: G05F1/10 ,  G05F3/02 ,  G05F1/565 ,  G05F1/625 ,  G05F3/16 ,  G05F1/575

CPC classification number: G05F1/575

Abstract: A reference circuit may include a bandgap reference stage, a filter stage, and a buffer stage. The reference stage may be configured to generate a reference voltage or current. The filter stage may be coupled to the reference stage and may be configured to receive the reference voltage or current, filter noise from the reference voltage or current, receive a buffer output voltage or current, and filter noise from the buffer output voltage or current. The buffer stage may be coupled to the filter stage and may be configured to isolate the reference stage and the filter stage from a loading effect of a load circuit and generate a reference signal based on the reference voltage or current to drive the load circuit.