Electrical Engineering ⇒ Topic : Operational Amplifier Parameters

OPERATIONAL AMPLIFIER PARAMETERS

• Input offset current: The difference in currents between the non-inverting terminal and the inverting terminal with the output zero volts is called input offset current.
• Input offset voltage: The input voltage that must be applied across the input terminals to get zero output voltage.
• Common mode range: Maximum range of input voltage that can be simultaneously applied to both the inputs without causing cut-off or saturation amplifier stages.
• Differential mode range: The maximum difference signal that can be applied safely to the OP Amp input terminals.
• Supply voltage rejection ratio: Input offset voltage change per volt of supply voltage change is called supply voltage rejection ratio.
• Output voltage seeing: The maximum peak to peak output voltage that can be obtained without waveform clipping when DC output is zero.
•  Common mode rejection ratio (CMRR): The ratio of differential open loop gain to the common mode open loop gain is called common mode rejection ratio