Abstract: An internal voltage generation circuit includes a comparison block suitable for generating a comparison signal by comparing an internal voltage with a reference voltage; and an internal voltage generation circuit suitable for controlling an amount of an internal current in response to a bias voltage corresponding to an operation current of the comparison block, and generating the internal voltage corresponding to the internal current in response to the comparison signal.

Abstract: An internal voltage generation circuit includes a comparison block suitable for generating a comparison signal by comparing an internal voltage with a reference voltage; and an internal voltage generation circuit suitable for controlling an amount of an internal current in response to a bias voltage corresponding to an operation current of the comparison block, and generating the internal voltage corresponding to the internal current in response to the comparison signal.

Abstract: An analog beamformer of an ultrasonic diagnosis apparatus includes: a plurality of unit analog beamformers allocated to two or more focal points, respectively, and configured to beamform signals received from the respective focal points through transducer elements and output the beamformed signals; an analog multiplexer configured to sequentially select the output signals of the unit analog beamformers and generate a final output signal; a clock generator configured to provide a clock signal required for the unit analog beamformers; and a processor configured to provide information on sampling time points of channels, and sequentially operate the unit analog beamformers to perform beamforming according to a time-interleaving scheme.