| 摘要 |
An electronic circuit for converting an analog differential signal into a corresponding digital signal includes 2n voltage comparators each having a first input terminal, a second input terminal and an output terminal. A first network of 2n resistive elements is provided to which a first analog signal of the differential signal is applied, the first network having a plurality of first network nodes each coupled to the first input terminal of a corresponding one of the comparators and wherein one of the first network nodes is a first middle node coupled to the first analog signal. A second network of 2n resistive elements is provided to which a second analog signal of the differential signal is applied, the second network having a plurality of second network nodes each coupled to the second input terminal of the corresponding one of the comparators and wherein one of the second network nodes is a second middle node coupled to the second analog signal. The disclosed circuit couples a differential input signal to the capacitor array without the need for capacitors. This simplifies implementation and saves power and area. Such analog-to-digital converters are vital for high speed data communication and storage application.
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