Patent ID: 7164378
Filing Date: 2007-01-16
Classification: H03M

Abstract:
1. A method of converting a differential analog input signal into a digital output signal, the differential analog input signal comprising the differential between a first analog input signal and a second analog input signal, the method comprising: obtaining a binary output from a first sampling device, the binary output that corresponds to the first analog input signal; if the binary output from the first sampling device is zero, then: if the binary output from the first sampling device is a one, then: obtaining a binary output from a second sampling device, the binary output that corresponds to the second analog input signal; if the binary output from the second sampling device is a zero, then: if the binary output from the second sampling device is a one, then: wherein each of the first sampling device and the second sampling device draws substantially zero average current from a first analog input source and a second analog input source, respectively; converting the first analog input signal to a first digital signal based on the sampling of the first sampling device; converting the second analog input signal to a second digital signal based on the sampling of the second sampling device; and combining the first digital signal and the second digital signal using a digital combiner to obtain the digital output signal.