Differential signal processing circuit
The invention discloses a differential signal processing circuit. A voltage conversion circuit unit provides a center bias voltage, a comparator reference upper limit voltage and a comparator reference lower limit voltage; the first-stage amplifying circuit unit amplifies and converts the differenti...
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Main Authors | , , , |
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Format | Patent |
Language | Chinese English |
Published |
14.02.2020
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a differential signal processing circuit. A voltage conversion circuit unit provides a center bias voltage, a comparator reference upper limit voltage and a comparator reference lower limit voltage; the first-stage amplifying circuit unit amplifies and converts the differential voltage signal into a single-path signal with center bias; the second-stage amplification circuitunit reversely amplifies the single-path signal into a second-stage amplification signal; and the comparison output circuit unit compares the secondary amplification signal with a reference upper limit voltage and a reference lower limit voltage, and outputs a detection signal according to different comparison results. According to the invention, a single power supply is adopted for power supply,only a power supply voltage VCC needs to be provided, and voltage conversion of a center bias voltage required by the interior of the circuit, a comparator reference upper limit voltage and a comparator reference lower limit |
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Bibliography: | Application Number: CN201910981386 |