Patent ID: 8160237

Claim:
A method of forming an amplifier to compensate for frequency-dependent attenuation of a transmission line, the amplifier having a first pair of operational amplifiers of a pre-selected type connected as a differential amplifier, and with resistive and capacitive components that determine a gain-frequency characteristic of the differential amplifier over a predetermined frequency spectrum, the method comprising: calculating values for said resistive and capacitive components for a predetermined gain at a target peak frequency; simulating a first frequency response characteristic of the differential amplifier using a simulation model that is specific for the pre-selected type of operational amplifier and the calculated resistive and capacitive component values; determining a difference between a peak frequency obtained in the simulated first frequency response characteristic and the target peak frequency; adjusting the capacitive component value by applying an inverse square law relating a ratio of a new capacitance value to a current capacitance value, and relating the square of a ratio of a current frequency to the target peak frequency to determine said new capacitance value for said target peak frequency to move said peak frequency obtained in the simulated first frequency response characteristic toward said target peak frequency; and repeating said simulating, determining and adjusting steps until the simulated peak frequency corresponds substantially to said target peak frequency.