CN113316895A - 一种放大电路 - Google Patents

一种放大电路 Download PDF

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Publication number
CN113316895A
CN113316895A CN201980004198.1A CN201980004198A CN113316895A CN 113316895 A CN113316895 A CN 113316895A CN 201980004198 A CN201980004198 A CN 201980004198A CN 113316895 A CN113316895 A CN 113316895A
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China
Prior art keywords
submodule
load
switch
amplifier
bias signal
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Pending
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CN201980004198.1A
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English (en)
Inventor
李博
范硕
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Shenzhen Goodix Technology Co Ltd
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Shenzhen Goodix Technology Co Ltd
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Publication of CN113316895A publication Critical patent/CN113316895A/zh
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
    • H03F3/08—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only controlled by light
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

一种放大电路，包括放大器(11)和电流跟随器(12)；电流跟随器(12)的输入端作为放大电路的输入端，电流跟随器(12)的输出端与放大器(11)的输入端连接，放大器(11)的输出端作为放大电路的输出端。通过上述结构减小了等效对地电容对SNR的影响。

Description

PCT国内申请，说明书已公开。

Claims (10)

  1. PCT国内申请，权利要求书已公开。
CN201980004198.1A 2019-11-25 2019-11-25 一种放大电路 Pending CN113316895A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/120753 WO2021102656A1 (zh) 2019-11-25 2019-11-25 一种放大电路

Publications (1)

Publication Number Publication Date
CN113316895A true CN113316895A (zh) 2021-08-27

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ID=76128997

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201980004198.1A Pending CN113316895A (zh) 2019-11-25 2019-11-25 一种放大电路

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CN (1) CN113316895A (zh)
WO (1) WO2021102656A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050258905A1 (en) * 2004-05-20 2005-11-24 Elantec Semiconductor, Inc. Current-mode preamplifiers
CN202059373U (zh) * 2011-05-19 2011-11-30 佛山敏石芯片有限公司 跨阻放大器前端电路
CN103023444A (zh) * 2011-09-21 2013-04-03 瑞昱半导体股份有限公司 跨阻放大器及其电流转换电压方法
CN103973246A (zh) * 2014-04-04 2014-08-06 嘉兴禾润电子科技有限公司 一种用于光接收机的低噪声跨阻放大器
CN104113293A (zh) * 2013-10-22 2014-10-22 西安电子科技大学 一种高增益低噪声差分跨阻放大器
CN108667434A (zh) * 2018-04-12 2018-10-16 东南大学 一种低电压低输出阻抗跨阻放大器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050258905A1 (en) * 2004-05-20 2005-11-24 Elantec Semiconductor, Inc. Current-mode preamplifiers
CN202059373U (zh) * 2011-05-19 2011-11-30 佛山敏石芯片有限公司 跨阻放大器前端电路
CN103023444A (zh) * 2011-09-21 2013-04-03 瑞昱半导体股份有限公司 跨阻放大器及其电流转换电压方法
CN104113293A (zh) * 2013-10-22 2014-10-22 西安电子科技大学 一种高增益低噪声差分跨阻放大器
CN103973246A (zh) * 2014-04-04 2014-08-06 嘉兴禾润电子科技有限公司 一种用于光接收机的低噪声跨阻放大器
CN108667434A (zh) * 2018-04-12 2018-10-16 东南大学 一种低电压低输出阻抗跨阻放大器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LIAO, CHIH-FAN 等: "A Broadband Noise-Canceling CMOS LNA for 3.1-10.6-GHz UWB Receiver", 《IEEE 2005 CUSTOM INTEGRATED CIRCUITS CONFERENCE》, pages 161 - 163 *

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Publication number Publication date
WO2021102656A1 (zh) 2021-06-03

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