i) Slew rate:- Maximum rate of change of o/p voltage per unit of time. It is express in volt/µsec.
ii) Input offset voltage:- The voltage that must be applied between two i/p terminal of an op-amp to learn the o/p.
iii) Voltage gain:- Voltage gain is the ratio of o/p voltage to i/p voltage.
iv) Input capacitance:- This is equivalent capacitance that can be measured at either be inverting or non-inverting terminal with other terminal connected to ground.