A 9-bit 33MHz Hybrid SAR Single-slope ADC

In this work a 9-bit, 33MHz hybrid SAR single-slope ADC for element-level digitization in 2D ultrasound transducer arrays is presented. This hybrid architecture consists of a 5-bit SAR ADC followed by a 4-bit single-slope ADC. In the comparator design, the dynamic comparator and the continuous-time comparator for the SAR and single-slope...