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US 8,018,281 B2Granted
Method and device for performing offset cancellation in an amplifier using floating-gate transistors
AssigneeGeorgia Tech Research Corporation
InventorsPaul Hasler, Venkatesh Srinivasan, Guillermo Serrano, Jordan Gray
Life of this patent
Estimating the term…
Abstract
An operational amplifier including: a differential pair of transistors coupled to a pair of input signals; and a pair of floating-gate transistors coupled to the differential pair of transistors, wherein the pair of floating-gate transistors are operable for reducing an offset voltage of the operational amplifier.
Claims6
A circuit comprising:
- a differential pair of transistors coupled to a pair of input signals;
- and
- a pair of floating-gate transistors coupled to the differential pair of transistors, wherein the pair of floating-gate transistors are operable for reducing an offset voltage of the circuit and wherein the pair of floating-gate transistors are located outside the signal path of the differential pair of transistors and the pair of floating-gate transistors can be isolated from the differential pair of transistors when programmed.
Dependencies are inferred from the claim text.