| 摘要 |
Embodiments of the present invention enable bandwidth extension of receiver front-end circuits without the use of inductors. As a result, significantly smaller and cheaper receivers can be made. In an embodiment, bandwidth extension is achieved by very small floating capacitors that are coupled around amplifier stages of the receiver front-end circuit. Each of the capacitors is configured to generate a negative capacitance for the preceding stage (e.g., equalizer or amplifier), thus extending the bandwidth of the preceding stage. A capacitively-degenerated crosscoupled transistor pair allows bandwidth extension for the final (e.g., amplifier) stage. Embodiments further enable DC offset compensation with the use of a digital feedback loop. The feedback loop can thus be turned on/off as needed, reducing power consumption. [Reference numerals] (AA) To other circuitry, e.g., slicers |
