公开(公告)号：US09859847B2

公开(公告)日：2018-01-02

申请号：US14843580

申请日：2015-09-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ji-Seon Paek ,  Seung-Chul Lee ,  Young-Hwan Choo ,  Sung-Jun Lee ,  Jun-Hee Jung ,  Thomas Byunghak Cho ,  Jeong-Hyun Choi

IPC: H03F3/04 ,  H03F1/02 ,  H03F1/22 ,  H03F3/193 ,  H03F3/24 ,  H03F3/30

CPC classification number: H03F1/0227 ,  H03F1/223 ,  H03F3/193 ,  H03F3/245 ,  H03F3/3064 ,  H03F2200/408 ,  H03F2200/432 ,  H03F2200/451 ,  H03F2203/30015

Abstract: A parallel output linear amplifier is provided that includes a transconductance amplifier configured to receive an analog input signal from an input terminal and amplify the analog input signal. The parallel output linear amplifier also includes a first pre-amplifier connected to the transconductance amplifier and operated using a floating drive voltage, and a cascode class AB amplifier connected to the first pre-amplifier and configured to provide an amplified signal to an output terminal. The parallel output linear amplifier further includes a second pre-amplifier configured connected to the transconductance amplifier and operated using the floating drive voltage, and a cascade class AB amplifier connected to the second pre-amplifier and configured to provide an amplified signal to the output terminal.