In previous design generations interconnect could safely be modeled by extraction using just R and C values. Parasitics in interconnect are important because they can affect the operating frequency or phase error in circuits like VCO’s. The need to model parasitics properly in wires is just as applicable in PA’s, LNA’s and for… Read More
Balancing analog layout parasitics in MOSFET differential pairs
The MOSFET differential pair is a key part of many analog circuits e.g. opamps, comparators, LDOs, etc. A differential pair applies gain to the difference between two signals and has many advantages over single-ended amplifier circuits, e.g. noise reduction and suppression of common-mode signals and DC offset. However, these