XSCHEM
Schematic circuit editor for VLSI and Mixed mode circuit simulation.
... top speed performance, even on very big circuits. I have succesfully managed to simulate complete VLSI projects with this tool, both digital (Verilog / VHDL) and analog (Spice).
Schematics can be printed in SVG, PNG, PDF, formats. XSCHEM runs on Linux or other Unix-likes with Xorg server and on Windows with the Cygwin layer and required tools installed.
Can be found also on github: https://github.com/StefanSchippers/xschem