Patent ID: 6566950
Filing Date: 2003-05-20
Classification: H03F

Abstract:
A differential voltage preamplifier circuit comprising:a first preamplifier stage operably coupled to receive a first leg of a differential voltage input signal as an input and to receive a second leg of the differential voltage input as a first control signal, wherein the first preamplifier stage produces a first leg of an amplified differential voltage input from the first leg of the differential voltage input based on the first control signal; a second preamplifier stage operably coupled to receive the second leg of the differential voltage input signal as an input and to receive the first leg of the differential voltage input as a second control signal, wherein the second preamplifier stage produces a second leg of the amplified differential voltage input from the second leg of the differential voltage input based on the second control signal; and a level shifting circuit operably coupled to receive an input signal and to produce therefrom the differential voltage input signal.