Nested floating-inverter based amplifier
AssigneesInfineon Technologies AG, Politecnico Di Milano
InventorsAndrea Cristofoli, Gabriele Zanoletti, Luca Bertulessi
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Abstract
In accordance with an embodiment, a nested floating inverter dynamic amplifier (FIDA) includes: a first FIDA amplifier comprising a plurality of first inverters switchably coupled to a first reservoir capacitor; and a second FIDA amplifier comprising a plurality of second inverters switchably coupled to a second reservoir capacitor, wherein outputs of the plurality of first inverters are coupled to corresponding inputs of the plurality of second inverters.
Claims22
A nested floating inverter dynamic amplifier (FIDA) comprising:
- a first FIDA amplifier comprising a plurality of first inverters switchably coupled to a first reservoir capacitor;
- and
- a second FIDA amplifier comprising a plurality of second inverters switchably coupled to a second reservoir capacitor, wherein outputs of the plurality of first inverters are coupled to corresponding inputs of the plurality of second inverters.
A method of operating a nested floating inverter dynamic amplifier (FIDA) comprising a first FIDA amplifier comprising a plurality of first inverters switchably coupled to a first reservoir capacitor, a second FIDA amplifier comprising a plurality of second inverters switchably coupled to a second reservoir capacitor, wherein outputs of the plurality of first inverters are coupled to corresponding inputs of the plurality of second inverters, the method comprising:
- during a charging phase, charging the first reservoir capacitor and the second reservoir capacitor to a first voltage;
- and
- during an amplification phase, connecting the first reservoir capacitor to the plurality of first inverters and connecting the second reservoir capacitor to the plurality of second inverters, wherein the first FIDA amplifier and the second FIDA amplifier are configured to float during the amplification phase.
A circuit comprising:
- a first inverter having an input coupled to a first input node;
- a first load inverter coupled to an output of the first inverter, wherein an input of the first load inverter is connected to an output of the first load inverter;
- a second inverter having an input coupled to a second input node;
- a second load inverter coupled to an output of the first inverter, wherein an input of the second load inverter is connected to an output of the second load inverter;
- a first reservoir capacitor switchably coupled to power supply nodes of the first inverter and the second inverter;
- and
- a second reservoir capacitor switchably coupled to power supply nodes of the first load inverter and the second load inverter.
Dependencies are inferred from the claim text.