Patent ID: 6218884
Filing Date: 2001-04-17
Classification: H03K

Abstract:
An apparatus including a low voltage differential signaling (LVDS) driver circuit with on-resistance cancellation, the LVDS driver circuit comprising:a current steering circuit having an on-resistance;an on-resistance cancellation bias circuit including,a transistor having an on-resistance proportional to the on-resistance of the current steering circuit, the transistor having first, second and third terminals,a voltage-to-current conversion circuit coupled to the first and second terminals of the transistor, wherein the voltage-to-current conversion circuit converts the drain-to-source voltage of the transistor into a current proportional to an output current of the LVDS driver circuit, anda first resistive circuit coupled to the voltage-to-current conversion circuit; anda voltage generating circuit coupled to the first resistive circuit and to the current steering circuit.