Nested transimpendance amplifier
AssigneeMarvell International Ltd.
InventorSehat Sutardja
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Abstract
A nested transimpedance amplifier circuit includes a first-order nested transimpedance amplifier having an input and an output. The first-order nested transimpedance amplifier is configured to be powered by a first voltage. A charge pump module is configured to receive the first voltage and a second voltage. The second voltage is different from the first voltage. The charge pump module generates a third voltage based on the first voltage and the second voltage. A first operational amplifier has an input and an output. The input of the first operational amplifier communicates with the output of the zero-order transimpedance amplifier, and the first operational amplifier is configured to be powered by the third voltage.
Claims1
A nested transimpedance amplifier circuit, comprising:
- a first-order nested transimpedance amplifier having an input and an output, the first-order nested transimpedance amplifier configured to be powered by a first voltage;
- a charge pump module configured to
- receive the first voltage and a second voltage, the second voltage being different from the first voltage, and
- generate a third voltage based on the first voltage and the second voltage;
- and
- a first operational amplifier having an input and an output,
- wherein the input of the first operational amplifier communicates with the output of the zero-order transimpedance amplifier, and the first operational amplifier is configured to be powered by the third voltage.
Dependencies are inferred from the claim text.