Circuitry applied to multiple power domains
AssigneeRealtek Semiconductor Corp.
InventorsWei-Cheng Tang, Li-Lung Kao, Chia-Ling Chang, Sheng-Wei Lin, Sheng-Tsung Wang
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Abstract
The present invention provides a circuitry applied to multiple power domains. An amplifier of the circuitry includes an output stage and a switching circuit. The output stage includes a first transistor and a second transistor, wherein the first transistor is coupled between a supply voltage and an output terminal, the second transistor is coupled between the output terminal and a ground voltage. The switching circuit is configured to choose a body of the first transistor from the supply voltage or a reference voltage.
Claims17
A circuitry applied to multiple power domains, comprising:
- a first amplifier, configured to receive an input signal and generate a processed input signal, wherein the first amplifier is supplied by a first supply voltage of a first power domain;
- and
- a second amplifier, coupled to the first amplifier, configured to receive the processed input signal and generate an output signal, wherein the second amplifier is supplied by a second supply voltage of a second power domain;
- wherein the second amplifier comprises:
- an output stage comprising a first transistor and a second transistor, wherein the first transistor is coupled between the second supply voltage and an output terminal, the second transistor is coupled between the output terminal and a ground voltage;
- and
- a switching circuit, configured to choose a body of the first transistor from the second supply voltage or a reference voltage.
A circuitry, comprising:
- an amplifier, comprising:
- an output stage comprising a first transistor and a second transistor, wherein the first transistor is coupled between a supply voltage and an output terminal, the second transistor is coupled between the output terminal and a ground voltage;
- and
- a switching circuit, configured to choose a body of the first transistor from the supply voltage or a reference voltage.
A circuitry applied to multiple power domains, comprising:
- a first amplifier, configured to receive an input signal to generate a processed input signal, wherein the first amplifier is supplied by a first supply voltage of a first power domain;
- and
- a second amplifier, coupled to the first amplifier, configured to receive the processed input signal to generate an output signal, wherein the second amplifier is supplied by a second supply voltage of a second power domain;
- wherein the first amplifier comprises:
- an output stage comprising a first transistor and a second transistor, wherein the first transistor is coupled between the first supply voltage and an output terminal, the second transistor is coupled between the output terminal and a ground voltage;
- and
- a switching circuit, configured to chooses a body of the first transistor from the first supply voltage or a reference voltage.
Dependencies are inferred from the claim text.