Invention Grant
US08928408B2 High-gain low-noise preamplifier and associated amplification and common-mode control method
有权
高增益低噪声前置放大器及相关放大及共模控制方式
- Patent Title: High-gain low-noise preamplifier and associated amplification and common-mode control method
- Patent Title (中): 高增益低噪声前置放大器及相关放大及共模控制方式
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Application No.: US13749488Application Date: 2013-01-24
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Publication No.: US08928408B2Publication Date: 2015-01-06
- Inventor: Alfio Zanchi , Shinichi Hisano
- Applicant: Aeroflex Colorado Springs Inc.
- Applicant Address: US CO Colorado Springs
- Assignee: Aeroflex Colorado Springs Inc.
- Current Assignee: Aeroflex Colorado Springs Inc.
- Current Assignee Address: US CO Colorado Springs
- Agency: Hogan Lovells US LLP
- Agent Peter J. Meza
- Main IPC: H03F3/45
- IPC: H03F3/45 ; H03F3/00 ; H03F3/195
Abstract:
A preamplifier includes a differential pair of transistors receiving a bias current having a differential input and a differential output, a first resistor coupled to a first differential output node, a first transistor having a current path coupled between the first resistor and a power supply, a second resistor coupled to the first differential output node, a second transistor having a current path coupled between the second resistor and the power supply, a third resistor coupled to a second differential output node, a third transistor having a current path coupled between the third resistor and the power supply, a fourth resistor coupled to the second differential output node, and a fourth transistor having a current path coupled between the fourth resistor and the power supply, wherein a source of the second and third transistors are coupled together.
Public/Granted literature
- US20140203875A1 HIGH-GAIN LOW-NOISE PREAMPLIFIER AND ASSOCIATED AMPLIFICATION AND COMMON-MODE CONTROL METHOD Public/Granted day:2014-07-24
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