High-resolution ADCs design in sensors

Abstract

This paper presents design considerations for highresolution and high-linearity ADCs for biomedical imaging applications. The work discusses how to improve dynamic specifications such as Spurious Free Dynamic Range (SFDR) and Signal-to-Noise-and-Distortion Ratio (SNDR) in ultra-low power and high-resolution analog-to-digital converters (ADCs) including successive approximation register (SAR) for biomedical imaging application. The results show that with broad range of mismatch error, the SFDR is enhanced by about 10 dB with the proposed performance enhancement technique, which makes it suitable for high resolution image sensors sensing systems.

Analog to Digital Converters (ADC): A Literature Review

“…SAR ADC are researched and described for different applications such as Biomedical applications, wireless sensors, receivers, etc. [35,36,37,39,40,42] for its high speed performance. Another type of ADC: Flash ADC [38,41,43] is also proposed for many applications such as high-speed instrumentation, radar, wireless sensor network, DSO, digital TVs and so on.…”