Line driver having adjustable current mirror array

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11899485
APP PUB NO 20230195154A1
SERIAL NO

18079044

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A line driver includes a first resistive component, a second resistive component, an operational amplifier and an adjustable current mirror array circuit. A first terminal of the second resistive component and the first resistive component are coupled to a node, and a second terminal of the second resistive component is coupled to an output terminal. The operational amplifier receives a common mode voltage through the first resistive component, and generates a first signal and a second signal according to the common mode voltage and an input signal. The adjustable current mirror array circuit generates a first current to the node and a second current to the output terminal in response to the first and second signals, and adjusts a ratio of the second current to the first current in response to multiple control bits so as to set an output impedance of the output terminal.

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Patent Owner(s)

Patent OwnerAddress
SIGMASTAR TECHNOLOGY LTDXIAMEN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Zhun Shanghai, CN 3 0
Wan, Zhong-Yuan Shanghai, CN 2 0

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