An ultrasound imaging receiver circuit includes a plurality of amplifiers configured to receive input signals from a plurality of ultrasound transducer channels respectively a plurality of ADCs connected with the amplifiers respectively a switching circuit connected with the ADCs an image signal processor connected with the switching circuit and a control signal generator. Each amplifier includes a first input port configured for receiving one input signal from an ultrasound transducer channel, a second input port connected to the ground and an output port connected to one ADC, the first input port being connected to the output port through a first switch. The control signal generator is configured to compare the input signal with a first preset threshold and a second preset threshold and output control signals controlling the first switch and the second switch based on the comparisons.
