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A synthesis-based bandwidth enhancement technique for CMOS amplifiers/buffers is presented. It achieves bandwidth-enhancement ratio (BWER) of 4.84, close to a proven theoretical upper limit of 4.93 for passive network with balanced capacitive loads. By employing a step-by-step design methodology, the proposed technique can be applied to any load condition, which is characterized by the ratio between...
An LNA with integrated notch filter is demonstrated. It consists of a coilless two-stage LNA with capacitive feedback and an integrated Q-enhanced notch filter. Thus, this circuit is capable for use in FDD systems like UMTS or WCDMA without additional off-chip interstage filter, especially for highly integrated multi-band multi-standard transceivers as only one area consuming coil is used. At 100...
Theoretical and experimental results are presented for op-amp compensation using split-length transistors. By using split-length devices the right-half plane zero which plagues op-amp performance can be eliminated. Experimental results indicate substantial enhancements in speed while reducing power consumption and layout area. Further, these techniques can be used to compensate op-amps when using...
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