COMMON MODE CORRECTION USING ADC IN ANALOG PROBE BASED RECEIVER
A method for removing offset in a receiver of an integrated circuit (IC) includes: determining digital codes of differential input voltages of an amplifier in a first receiving lane of the receiver; comparing the digital codes to a digital code corresponding to an optimum common mode voltage (VCM) o...
Gespeichert in:
Hauptverfasser: | , , |
---|---|
Format: | Patent |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | A method for removing offset in a receiver of an integrated circuit (IC) includes: determining digital codes of differential input voltages of an amplifier in a first receiving lane of the receiver; comparing the digital codes to a digital code corresponding to an optimum common mode voltage (VCM) of the receiver; according to the comparison, determining a bias code for adjusting both the differential input voltages to match the optimum VCM; and inputting the bias code to a bias circuit of the receiver. The first receiving lane of the receiver includes a plurality of amplifiers. The method steps are repeated for each amplifier of the plurality of amplifiers, and then repeated for all receiving lanes of the IC. |
---|