A Divide-by-4 circuit implemented in low voltage, high speed silicon bipolar topology

This paper presents a Divide-by-4 circuit performing in the GHz range at very low supply voltage. Measurements have shown operation from 2.0-V and 2.2-GHz input frequency, down to 1.1-V and 1.2-GHz. The power consumption is approximately 2.5-mW/latch and 0.3-mW/latch, respectively. The circuit has been designed for nominal 1.5-V operation utilizing the bipolar part of Ericsson Component's 0.6 /spl mu/m BiCMOS technology (EPIC-3B).