I tried to simulate the evaluation circuit of the STEVAL-ISA174V1. I have loaded the VIPER0P.LIB and have integrated it in ORCAD 17.2. During simulation I get error messages. Subcircuits DAC_2BIT, DAC_3BIT, DAC_4BIT and DAC_13BIT are undefined. The library is encrypted. Therefore I can not solve the problem.
A PSPICE simulation this cicuit or a similar one would be helpfull.