	US 11,791,791 B2
	Receiver for compensating common mode offset
Seunghwan Hong, Hwaseong-si (KR); Yoo-Chang Sung, Hwaseong-si (KR); Wangsoo Kim, Seoul (KR); and Indal Song, Seoul (KR)
Assigned to Samsung Electronics Co., Ltd.
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jun. 21, 2021, as Appl. No. 17/352,487.
Application 17/352,487 is a continuation of application No. 16/654,558, filed on Oct. 16, 2019, granted, now 11,075,610.
Claims priority of application No. 10-2019-0034590 (KR), filed on Mar. 26, 2019.
Prior Publication US 2021/0313945 A1, Oct. 7, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H03F 3/45 (2006.01); H03G 5/16 (2006.01); H03F 3/68 (2006.01); H03F 1/26 (2006.01); H04B 1/16 (2006.01)

CPC H03G 5/165 (2013.01) [H03F 1/26 (2013.01); H03F 3/45183 (2013.01); H03F 3/68 (2013.01); H04B 1/16 (2013.01); H03F 2200/129 (2013.01); H03F 2200/165 (2013.01); H03F 2200/267 (2013.01); H03F 2200/375 (2013.01); H03F 2203/45212 (2013.01)]

14 Claims

1. A receiver, comprising:

a main differential amplifier having first and second input terminals responsive to first and second inputs signals, respectively, and first and second output terminals; and

an equalizer electrically coupled to at least one of the first and second output terminals and responsive to at least the first input signal, the equalizer configured to improve common-mode offset characteristics of the main differential amplifier by loading at least one of the first and second output terminals to reduce a common-mode offset voltage therebetween, and comprising: (i) a first differential amplifier having first and second input terminals responsive to the first and second input signals, respectively, and (ii) a second differential amplifier having a first input terminal electrically coupled by a first low pass filter to a first output terminal of the first differential amplifier and a second input terminal electrically coupled by a second low pass filter to a second output terminal of the first differential amplifier.