公开(公告)号：US10327659B2

公开(公告)日：2019-06-25

申请号：US15621621

申请日：2017-06-13

Applicant: Analog Devices, Inc.

Inventor： Arthur J. Kalb ,  Yogesh Jayaraman Sharma ,  Marvin Liu Shu

IPC: A61B5/00 ,  A61B5/0428 ,  A61B5/0452 ,  H03M3/00 ,  H03M1/06 ,  H03M1/18 ,  H03M1/68

Abstract: An analog front end (AFE) system for substantially eliminating quantization error or noise can combine an input of an integrator circuit in the AFE system with an input of the digital-to-analog converter (DAC) circuit in the feedback loop of the AFE system. By combining the input of the integrator with the input of the DAC circuit in the feedback loop, the in-band quantization noise of the filter can be substantially eliminated, thereby improving measurement accuracy.