A Review of PVT Compensation Circuits for Advanced CMOS Technologies

Provided by: Scientific Research Publishing
Topic: Hardware
Format: PDF
The recent high-performance interfaces like DDR2, DDR3, USB and Serial ATA require their output drivers to provide a minimum variation of rise and fall times over Process, Voltage, and Temperature (PVT) and output load variations. As the interface speed grows up, the output drivers have been important component for high quality signal integrity, because the output voltage levels and slew rate are mainly determined by the output drivers. The output driver impedance compliance with the transmission line is a key factor in noise minimization due to the signal reflections.

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