EE 3401 Engineering Electronics - Operational Amplifiers

A set of vocabulary flashcards for key concepts related to operational amplifiers and electronic circuits in EE 3401 Engineering Electronics.

Differential Amplifier

An amplifier that amplifies the difference between two input signals.

Common-Mode Rejection Ratio (CMRR)

A measure of the ability of an amplifier to reject common-mode signals, defined as the ratio of differential gain to common-mode gain.

Op-Amp

Operational amplifier, a high-gain electronic voltage amplifier with differential inputs.

Gain-Bandwidth Product

The product of an amplifier's bandwidth and its gain; a constant for a given amplifier.

Integrator

A circuit that produces an output voltage proportional to the integral of the input voltage over time.

Differentiator

A circuit that produces an output voltage proportional to the rate of change of the input voltage.

Single-Pole Low-Pass Filter

A filter that allows signals with a frequency lower than a certain cutoff frequency to pass through and attenuates frequencies higher than that.

Input Resistance (Rid)

The resistance seen by an input signal in a circuit.

Voltage Gain in Decibels

Expressed as 20 times the logarithm of the ratio of output voltage to input voltage.

Bode Plot

A graphical representation of a system’s frequency response, plotting gain and phase against frequency in a logarithmic scale.

Miller Integrator

An integrator circuit that uses a Miller effect with a capacitor to control the time constant.