Patent ID: 7583084
Filing Date: 2009-09-01
Classification: G01R

Abstract:
1. An arrangement for converting an analog acquisition signal into a digital signal, comprising: a local coil of a magnetic resonance apparatus that acquires an analog acquisition signal; a low-noise amplifier having an input configured for connection to an output of the acquisition coil to receive the analog acquisition signal at the input of the amplifier, said amplifier amplifying said analog acquisition signal to form an amplified analog acquisition signal that is emitted at an output of the amplifier; an analog-to-digital converter having an input connected to the output of the amplifier, said analog-to-digital converter converting said amplified analog acquisition signal into a corresponding digital signal that is emitted at an output of the analog-to-digital converter; and said analog-to-digital converter being a band pass delta-sigma modulator that forms a digital data stream with a width of one bit, as said digital signal, from said amplified acquisition signal.