These calculators will determine the Gain and output voltage for both a Non-Inverting Op-Amp and an Inverting Op-Amp.
An operational amplifier (op-amp) is a DC-coupled high-gain electronic voltage amplifier with a differential input and, usually, a single-ended output. In this configuration, an op-amp produces an output potential (relative to circuit ground) that is typically hundreds of thousands of times larger than the potential difference between its input terminals.
Op-amps may be classified by their construction:
discrete (built from individual transistors or tubes/valves )
IC (fabricated in an Integrated circuit ) ??? most common
IC op-amps may be classified in many ways, including:
Military, Industrial, or Commercial grade (for example: the LM301 is the commercial grade version of the LM101, the LM201 is the industrial version). This may define operating temperature ranges and other environmental or quality factors.
Classification by package type may also affect environmental hardiness, as well as manufacturing options; DIP , and other through-hole packages are tending to be replaced by surface-mount devices .
Classification by internal compensation: op-amps may suffer from high frequency instability in some negative feedback circuits unless a small compensation capacitor modifies the phase and frequency responses. Op-amps with a built-in capacitor are termed " compensated ", or perhaps compensated for closed-loop gains down to (say) 5. All others are considered uncompensated.
Single, dual and quad versions of many commercial op-amp IC are available, meaning 1, 2 or 4 operational amplifiers are included in the same package.
Rail-to-rail input (and/or output) op-amps can work with input (and/or output) signals very close to the power supply rails.
CMOS op-amps (such as the CA3140E) provide extremely high input resistances, higher than JFET -input op-amps, which are normally higher than bipolar -input op-amps.
other varieties of op-amp include programmable op-amps (simply meaning the quiescent current, gain, bandwidth and so on can be adjusted slightly by an external resistor).
manufacturers often tabulate their op-amps according to purpose, such as low-noise pre-amplifiers, wide bandwidth amplifiers, and so on.