US 11,817,861 B2
Receiver including offset compensation circuit
Jueon Kim, Seoul (KR); Taehyoung Kim, Singapore (SG); Seungjin Park, Suwon-si (KR); Jihwan Hyun, Hwaseong-si (KR); Myoungbo Kwak, Seoul (KR); and Junghwan Choi, Hwaseong-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR); and NANYANG TECHNOLOGICAL UNIVERSITY, Singapore (SG)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Aug. 30, 2022, as Appl. No. 17/898,631.
Claims priority of application No. 10-2021-0167272 (KR), filed on Nov. 29, 2021; and application No. 10-2022-0042072 (KR), filed on Apr. 5, 2022.
Prior Publication US 2023/0170887 A1, Jun. 1, 2023
Int. Cl. H03K 5/00 (2006.01); H03K 5/01 (2006.01); H03K 5/003 (2006.01); H03K 5/24 (2006.01); H03K 5/05 (2006.01)
CPC H03K 5/01 (2013.01) [H03K 5/003 (2013.01); H03K 5/05 (2013.01); H03K 5/24 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A receiver comprising:
a differential signal generator configured to receive a single-ended signal, and generate differential signals having a positive signal and a negative signal complementary to the positive signal based on the single-ended signal, a reference signal, and a pair of compensation signals;
a positive charging circuit configured to charge a first node to a power level in a logic low period of a clock signal;
a negative charging circuit configured to charge a second node to the power level in the logic low period of the clock signal;
a positive discharging circuit configured to discharge the first node according to a signal level of the positive signal in a logic high period of the clock signal;
a negative discharging circuit configured to discharge the second node according to a signal level of the negative signal in the logic high period of the clock signal;
a comparator configured to compare a signal level of the first node and a signal level of the second node and output an offset detection signal of the differential signals in response to a result of the comparison; and
an offset compensator configured to output the reference signal and the pair of compensation signals, each adjusted based on the offset detection signal obtained from the comparator, to the differential signal generator.