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US 2002/0163380 A1Published application
Integrated circuit
AssigneeKoninklijke Philips Electronics N.V.
InventorJohn B. Hughes
Life of this patent
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Abstract
An integrated circuit (100) comprising an analogue circuit (30) and optionally a digital circuit (50) couples substrate noise present on the integrated circuit ground rail (114) onto a supply rail (116) of the analogue circuit. The voltage difference between the supply rail and ground is therefore substantially independent of the noise, thereby reducing or eliminating the impact of the noise on signals in the analogue circuit.
Claims7
An integrated circuit, comprising an analogue circuit coupled to first and second supply rails and coupling means for coupling noise on the first supply rail to the second supply rail.
Dependencies are inferred from the claim text.