US 11,719,738 B2
Two-domain two-stage sensing front-end circuits and systems
Ali Fazli Yeknami, San Jose, CA (US); and Younghoon Song, Santa Clara, CA (US)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Feb. 4, 2021, as Appl. No. 17/168,093.
Claims priority of provisional application 63/092,125, filed on Oct. 15, 2020.
Prior Publication US 2022/0120805 A1, Apr. 21, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G01R 31/26 (2020.01); H03F 3/45 (2006.01)
CPC G01R 31/2601 (2013.01) [G01R 31/2607 (2013.01); H03F 3/45475 (2013.01); H03F 2200/129 (2013.01); H03F 2200/165 (2013.01); H03F 2203/45512 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A circuital system comprising:
a differential low-pass filter comprising a differential output and operable in a first voltage domain;
a differential integrator comprising a differential input and a differential output, and operable in a second voltage domain different from the first voltage domain; and
a pair of AC coupling capacitors coupling the differential output of the differential low-pass filter to the differential input of the differential integrator.