| 摘要 |
An active phase splitter comprises two or more phase shift circuits. Each phase shift circuit comprises a number of active devices and capacitors. For a single-pole active phase splitter, within each phase shift circuit, two active devices are configured as a cascode amplifier. The first active device is configured as a common source amplifier and the second active device is configured as a common gate amplifier. A capacitor is connected across the gate and drain of the first active device to generates the necessary pole-zero pair for the phase shift circuit. The cascode configuration results in the desired transfer function and provides transconversion of voltage input to current outputs. Active phase splitters with two or more poles can be built using the same inventive concept.
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