An 11-bit 2MS/s column parallel SAR-RAMP ADC for ToF imager readout

Time-of-Flight (ToF) is an optical range detection technique that derives range from the round-trip time of light pulse between the imager and the target. Due to the simple hardware and distance extraction algorithm, ToF imagers are widely adopted in existing (automotive, consumer electronics, etc.) and emerging (AR/VR, etc.) applications...

A Continuous-Time Zoom ADC for Audio Applications based on a High-Linearity OTA and a 4-bit SAR ADC

Analog-to-Digital Converters (ADCs) used in high fidelity audio applications require high linearity and a wide dynamic range (>100 dB). Moreover, for use in portable electronic devices such as smartphones, tablets, and hearing aids, these ADCs must also achieve high energy efficiency. This requirement of high linearity and high energy...

An ultrasound receiver channel for vagus nerve imaging

The neuromodulation modality based on the focused ultrasonic stimulation (FUS) has gained its interests for being non-invasive while having unprecedented high spatial resolution and deep penetration. The commercially available image-guided FUS device for neuromodulation setups are normally bulky, by employing an 1-D array transducer element to...

An Error Feedback Noise Shaping SAR ADC

Analog-to-digital converters are important blocks in any electronic system which act as a bridge between analog signals and digital processors. The conventional SAR ADC employs a binary search algorithm and has emerged as the most suitable solution for low-power applications, due to its excellent power efficiency. The proposed ADC architecture...