Offset-free analog-digital converter has subtraction amplifier for input and analog control signals, ADC circuit with high clock rate, digital clamp circuit, DAC circuit forming control signal

摘要

The device converts a defined frequency bandwidth analog input signal to an offset-free digital output signal with a subtraction amplifier (5) that amplifies the difference between an input signal and a control signal, an analogue to digital converter circuit (18) with high clock rate, a digital clamp circuit (24) for low pass filtering and a digital to analog converter circuit (49) for converting the filtered signal to the analog control signal Independent claims are also included for the following: a use of an analogue to digital converter with fully differential components and a use of the analogue to digital converter for converting an xSDL signal into a digital output signal.