A SAR analog-to-digital Converter (ADC) is disclosed with variable gain having a SAR capacitor array with a plurality of switched capacitors therein with varying weights and a SAR controller for sampling an input voltage thereon in a sampling phase, and redistributing the charge stored thereon in a conversion...http://www.google.de/patents/US7271758?utm_source=gb-gplus-sharePatent US7271758 - Gain adjust for SAR ADC
