Patent ID: 7501873
Filing Date: 2009-03-10
Classification: H03K

Abstract:
1. A circuit for threshold adjustment of an input signal having a first and a second component, the circuit comprising: a first differential pair of thin oxide transistors for decreasing a DC voltage component of the first or second component of the input signal, the first differential pair of transistors including a first transistor and a second transistor; a second differential pair of thin oxide transistors for increasing a DC voltage component of the first or the second component of the input signal, the second differential pair of transistors including a third transistor and a fourth transistor; a power supply for providing a supply voltage having a voltage level above a reliability level of the first and second pairs of thin oxide transistors, wherein each of the differential pair thin oxide transistors is switched by a signal such that the first, second, third, and fourth transistors operate in saturation.