Method and system for split voltage domain receiver circuits
First Claim
1. A method for processing signals, the method comprising:
- in an integrated circuit;
amplifying complementary received signals in a plurality of partial voltage domains; and
combining said amplified received signals, utilizing a stacked cascode amplifier for each domain, into a single differential signal in a single voltage domain, said stacked cascode amplifiers comprising a feedback loop having a comparator which controls a current source in each domain.
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Accused Products
Abstract
Methods and systems for split voltage domain receiver circuits are disclosed and may comprise amplifying complementary received signals in a plurality of partial voltage domains, and combining the amplified received signals, utilizing a stacked cascode amplifier for each domain, into a single differential signal in a single voltage domain. The stacked cascode amplifiers may comprise a feedback loop having a comparator which controls a current source in each domain. The complementary signals may be received from a photodiode, which may be integrated in the integrated circuit. The amplified received signals may be combined via stacked common source or common emitter amplifiers. The received signals via may be amplified by stacked inverters. The amplified received signals may be AC or DC coupled prior to the combining. The complementary received signals may be amplified and combined via cascode amplifiers. The voltage domains may be stacked and may be controlled by feedback loops.
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Citations
22 Claims
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1. A method for processing signals, the method comprising:
in an integrated circuit; amplifying complementary received signals in a plurality of partial voltage domains; and combining said amplified received signals, utilizing a stacked cascode amplifier for each domain, into a single differential signal in a single voltage domain, said stacked cascode amplifiers comprising a feedback loop having a comparator which controls a current source in each domain. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for processing signals, the system comprising:
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in an integrated circuit, one or more circuits operable to amplify complementary received signals in a plurality of partial voltage domains; and said one or more circuits being operable to combine said amplified received signals into a single differential signal, utilizing a stacked cascode amplifier for each domain, in a single voltage domain, said stacked cascode amplifiers comprising a feedback loop having a comparator which controls a current source in each domain. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification