AMPLIFIER BIASING FOR CLASS-AB OUTPUT STAGE IN A TRANSIMPEDANCE AMPLIFIER (TIA)-BASED LOW-PASS FILTER FOR A PASSIVE UPCONVERTER
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United States of America Patent
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Issued Date -
Sep 5, 2024
app pub date -
Mar 2, 2023
filing date -
Mar 2, 2023
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Abstract
A transimpedance-based baseband filter (BBF) including a two-stage operational transconductance amplifier (OTA) having a first stage based on a folded cascode topology, the first stage electrically coupled to a second stage, the second stage having a class AB topology, the first stage having an N-type and P-type transistor pair located between a P-type transistor and an N-type transistor, the N-type and P-type transistor pair configured to provide bias signals to push-pull transistors in the second stage.
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