PROGRAMMABLE GAIN TRANSIMPEDANCE AMPLIFIER HAVING A RESISTIVE T-NETWORK FEEDBACK ARCHITECTURE AND METHOD THEREOF
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United States of America
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Issued Date -
Apr 3, 2025
app pub date -
Sep 28, 2023
filing date -
Sep 28, 2023
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Abstract
A programmable transimpedance amplifiers (TIA) having T-network feedback architectures for achieving varying levels of gain based on a magnitude of an input current signal. TIA includes an operational amplifier (op-amp), a first or T-network feedback architecture that operatively connects with the op-amp at a first input terminal of the op-amp and the output terminal of the op-amp, a second feedback architecture that operatively connects with the op-amp at the first input terminal of the operational amplifier and the output terminal of the operational amplifier, an input voltage source architecture that operatively connects with a second input terminal of the operational amplifier, and at least one controller that operatively connects with each of the first feedback architecture, the second feedback architecture, and the input voltage source architecture to switch specific architectures between operative states and inoperative states to achieve a predetermined fixed output bias voltage from the operational amplifier.
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