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US 11,996,818 B2Granted
Differential current-to-voltage conversion
Assigneeams International AG
InventorsRahul Thottathil, Ravi Kumar Adusumalli, Parvathy S. J., Veeresh Babu Vulligaddala
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Abstract
An apparatus includes a differential current-to-voltage conversion circuit that includes an input sampling stage circuit, a differential integration and DC signal cancellation stage circuit, and an amplification and accumulator stage circuit. An input common mode voltage of the differential current-to-voltage conversion circuit is independent of an output common mode voltage of the differential current-to-voltage conversion circuit.
Claims9
An apparatus comprising a differential current-to-voltage conversion circuit including:
- an input sampling stage circuit operable to sample first current signals during a first period and operable to sample second current signals during a second period;
- a differential integration and DC signal cancellation stage circuit operable to:
- receive the first and second current signals from the input sampling stage circuit;
- integrate the first and second current signals;
- and
- generate a voltage output representative of a difference between the first and second current signals;
- and
- an amplification and accumulator stage circuit operable to:
- receive the voltage output from the differential integration and DC signal cancellation stage circuit;
- and
- amplify the received voltage output,
- wherein an input common mode voltage of the differential current-to-voltage conversion circuit is independent of an output common mode voltage of the differential current-to-voltage conversion circuit;
- and
- wherein the input common mode voltage of the differential current-to-voltage conversion circuit differs from the output common mode voltage of the differential current-to-voltage conversion circuit.
11 more elements
Dependencies are inferred from the claim text.