AMPLIFIER CIRCUIT AND METHOD OF SIGNAL AMPLIFICATION
First Claim
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1. An amplifier circuit, comprising:
- a first amplifier, comprising a first terminal, a second terminal, and a third terminal, wherein the first terminal is coupled to a first external voltage, the second terminal is coupled to a negative voltage, the third terminal is coupled to a ground reference voltage; and
a charge pump, coupled to the first amplifier, providing the negative voltage transformed from a second external voltage.
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Abstract
An amplifier circuit and a method of signal amplification are provided. The amplifier circuit includes a first amplifier and a charge pump. The first amplifier includes a first terminal, a second terminal, and a third terminal. The first terminal is coupled to a first external voltage. The second terminal is coupled to a negative voltage. The third terminal is coupled to a ground reference voltage. The charge pump is coupled to the first amplifier for providing the negative voltage transformed from a second external voltage.
9 Citations
18 Claims
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1. An amplifier circuit, comprising:
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a first amplifier, comprising a first terminal, a second terminal, and a third terminal, wherein the first terminal is coupled to a first external voltage, the second terminal is coupled to a negative voltage, the third terminal is coupled to a ground reference voltage; and a charge pump, coupled to the first amplifier, providing the negative voltage transformed from a second external voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of signal amplification for an amplifier circuit which has a first amplifier, comprising:
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providing a first external voltage and a second external voltage to the amplifier circuit; providing a negative voltage transformed from the second external voltage to the first amplifier; providing a ground reference voltage to the first amplifier; and amplifying a first input signal received by the first amplifier and outputting the amplified first input signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification