A power-efficient analog beamforming embedded SAR ADC for ultrasound imaging systems is presented. It is constructed from multiple sub-beamforming SAR ADCs, which sequentially perform analog beamforming and analog-to-digital conversion for an assigned focal point on a scan-line. Power is saved because these operations are carried out in the charge domain without a summing op-amp. This is realized by a capacitor beamforming digital-to-analog converter, which acts as both an analog memory cell and a digital-to-analog converter. The proposed analog beamformer was implemented in a 0.18pm CMOS process, and its power consumption is 12.1mW. The delay resolution is 4.17ns and the maximum achievable delay is 292ns. The sampling frequency is 20MS/s and the SNR of the prototype is 60dB. The circuit occupies an active area of 2.2mm2.