US 11,942,907 B2
Amplifier
Hyeokki Hong, Suwon-si (KR); Jihun Lee, Daejeon (KR); Gyuhyeong Cho, Daejeon (KR); Cheheung Kim, Yongin-si (KR); and Hyunwook Kang, Daejeon (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR); and KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, Daejeon (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR); and KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, Daejeon (KR)
Filed on May 17, 2021, as Appl. No. 17/322,222.
Claims priority of application No. 10-2020-0158029 (KR), filed on Nov. 23, 2020.
Prior Publication US 2022/0166391 A1, May 26, 2022
Int. Cl. H03F 3/45 (2006.01); H03F 3/00 (2006.01)
CPC H03F 3/005 (2013.01) [H03F 3/45179 (2013.01); H03F 2203/45244 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An amplifier comprising:
an input circuit configured to convert an input signal into a current;
an output circuit comprising at least one switching element and configured to provide an output signal; and
a biasing circuit connected to the at least one switching element of the output circuit to form a feedback loop configured to adjust a voltage change of an output end of the input circuit,
wherein the biasing circuit comprises a first input node connected to a first operating voltage of the amplifier and a second input node connected to a source node of the at least one switching element,
wherein the output end of the input circuit is connected to the source node of the at least one switching element, and
wherein the output circuit further comprises a capacitor configured to increase a bandwidth of the output signal.