V/I table in Bench measurements

Hi fellow gurus:

        Got two questions about the V/I table.

1) Does the Voltage table need to ramp down from a -ve number to a +ve or can it
   be from +ve to -ve number as well ?
   Ex: For [Pulldown] the Voltage table goes from -5.0V to +10.0V

2) For most of the V/I table, IBIS shows that the voltage range should go from
   +10V to -5V. Problem is, there are devices whose I/O structure cannot handle
   swings that large. In that case, since we should not test a device beyond
   it's Absolute Recommended Operating(ABS Max) range, is it O.K NOT to swing
   the I/O all the way to +10 to -5V ???

Regards,
Syed huq
National Semiconductor
Received on Tue Jul 19 15:12:57 1994