NESTED TRANSIMPEDANCE AMPLIFIER
First Claim
1. 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 toreceive the first voltage and a second voltage, the second voltage being different from the first voltage, andgenerate 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.
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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.
67 Citations
11 Claims
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1. A nested transimpedance amplifier circuit, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. The device of claim 11, wherein the device comprises an optical sensor.
Specification