#### Input off set voltage :

It is a voltage that must be applied between the two input terminals of an op-amp to null the output.

#### Input off-set current :

The algebraic difference difference between the currents in the inverting and non- inverting currents.
Typical value of input offset current is 200 nAmp.

Iiv = │I­B1 – IB2

#### Input bias current :

It is the average of the currents that flow into inverting and non-inverting currents of op-amp.
IB is typically 500 nAmp maximum for IC741.
Differential Input Resistance :

It is denoted by R i    It is an equivalent resistance that can be measured inverting or non-inverting with the other terminal grounded.

#### Input Capacitance (Ci) :

It is the equivalent capacitance that can be measure in that act as inverting and non-inverting terminal with the other terminal being grounded.
It is typically 1.4 Farads.

#### Common Mode Voltage:

It is the operating voltage in common mode operation, when some voltage is being applied to both the input terminals.

#### Common Mode Rejection Ratio:

It is a ratio of differential voltage gain (Adm) to common mode voltage gain (Acm).
CMRR = Adm / Acm

#### Supply Voltage Rejection Ratio (SVRR):

It is the change in an op-amp input offset voltage caused by variations in supply voltage. It is also called as Power Supply Rejection Ratio (PSRR).

#### Large Signal Voltage Gain:

It is the ratio of output voltage to differential input voltage.

Av = V0 / Vd
where, Vd = V1 ~ V2

#### Output Voltage Swing (-13V t o13V):

It is the output voltage swing for the positive and negative values of saturation voltages of an op-amp.