On-chip slew-rate control for low-voltage differential signalling (LVDS) driver

A low-voltage differential signaling (LVDS) driver with 3-bit programmable slew-rate control has been designed and fabricated in 0.13um complementary metal oxide semiconductor (CMOS) process. On-chip programmable capacitors allow cost saving compared to external capacitors and fine tuning to driver output slew-rate. This enables system designers with the flexibility to optimize driver slew-rate for wider range of applications. Slew-rate adjustment procedures are simple and yield accurate measurement results which meet the TIA/EIA-644-A standard.