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High-gain low-noise preamplifier and associated amplification and common-mode control method
High-gain low-noise preamplifier and associated amplification and common-mode control method
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机译:高增益低噪声前置放大器及相关的放大和共模控制方法
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摘要
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.
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