A 1.2- mu m CMOS current-controlled oscillator |
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Authors: | Flynn MP Lidholm SU |
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Affiliation: | Nat. Microelectron. Res. Centre, Univ. Coll. Cork, Ireland; |
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Abstract: | A simple, fully symmetrical, current-controlled CMOS oscillator is presented. The oscillator uses two grounded capacitors. This 5-V architecture permits relatively large capacitor voltage amplitudes, thus minimizing jitter. The design also operates with power supply voltages as low as 3 V. Because there are no special capacitor requirements, the design is compatible with standard scaled digital CMOS processes. The use of a double differential latching comparator allows high-speed operation with good control linearity. The circuit was successfully fabricated using a 1.2- mu m CMOS process.<> |
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