A multistage ADC that subranges and interpolates, and that amplifies selected subranges to convert an analog signal to a stream of digital values. The ADC samples the analog signal and provides a stream of sample signals. A first stage flash converts each sample signal into a first multiple bit value...http://www.google.com/patents/US6570523?utm_source=gb-gplus-sharePatent US6570523 - Analog to digital converter using subranging and interpolation
