Patent ID: 7714762

Claim:
A current mode ADC device, comprising: a first cell including: a first input terminal to receive an analog input signal; a second input terminal to receive a reference signal; a scaling circuit to scale a first one of the input signal and the reference signal; a comparator to compare the analog input signal and the reference signal and generate a digital output signal; and an output terminal to transmit an analog output signal to a second cell, wherein the analog output signal is independent from the digital output signal, wherein the second cell includes: a second cell first input terminal to receive the analog input signal transmitted from the first cell; a second cell second input terminal to receive a second cell reference signal; a second cell scaling circuit to scale a first one of the second cell input signal and the second cell reference signal; a second cell comparator to compare the analog input signal transmitted from the first cell and the second cell reference signal and generate a second cell digital output signal; and a second cell output terminal to transmit a second cell analog output signal, wherein the second cell analog output signal is independent from the second cell digital output signal.