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US 2026/0230052 A1Published application
Measurement and compensation of amplifier input offset
AssigneeMicrochip Technology Incorporated
InventorJason M. Sachs
Life of this patent
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Abstract
An apparatus includes a voltage amplifier and a logic circuit. The voltage amplifier may have selectable gain. The logic circuit may determine a value indicative of input offset of the voltage amplifier based at least partially on one or more reference output signals generated by the voltage amplifier in at least one of the selected gains. The logic circuit may apply a trim setting to the voltage amplifier, the trim setting corresponding to the determined value indicative of input offset.
Claims20
An apparatus, comprising:
- a voltage amplifier having selectable gain;
- and
- a logic circuit to:
- determine a value indicative of input offset of the voltage amplifier based at least partially on one or more reference output signals generated by the voltage amplifier in at least one of the selected gains;
- and
- apply a trim setting to the voltage amplifier, the trim setting corresponding to the determined value indicative of input offset.
3 more elements
A method, comprising:
- operating a voltage amplifier in one or more selectable gains;
- and
- applying a trim setting to the voltage amplifier, the trim setting corresponding to a value indicative of input offset of the voltage amplifier, the value determined at least partially based on reference output signals generated by the voltage amplifier in the one or more selectable gains.
Dependencies are inferred from the claim text.