Help me understand this verilog-A code .I simply dont know anything about verilog-A. I want to modify this code for low voltage of 0 and high voltage of 2.5V.Can anyone help me modify this.

   This is a code for a comparator

   "
   module comparator(sigin, sigref, sigout);
   input sigin, sigref;
   output sigout;
   electrical sigin, sigref, sigout;
   parameter real sigout_high = 10;
   parameter real sigout_low = -10;
   parameter real sigin_offset = 0;
   parameter real comp_slope =1000;


   analog begin

   @ ( initial_step ) begin
   if (sigout_high <= sigout_low) begin
   $display("Range specification error. sigout_high = (%E) less than sigout_low = (%E).\n", sigout_high, sigout_low );
   $finish;
   end
   end

   V(sigout) <+ 0.5 * (sigout_high - sigout_low)
   * tanh(comp_slope*(V(sigin, sigref)- sigin_offset))
   + (sigout_high + sigout_low)/2;

   "


REGARDS

okay.what about how we control the comparators speed? i mean if one input is changing at a rate of 1000MHz then will this work?

okay but is this an analog input comparator?