Operational AmplifiersAvailable
Non-Inverting Op-Amp Gain Calculator
Calculate ideal non-inverting amplifier closed-loop gain from Rf and Rg, including gain in V/V and dB.
Calculator category
Operational Amplifier Calculators
Design and analyze operational amplifier circuits including gain, feedback, filters, signal conditioning, and analog applications.
Available Calculators
12
Engineering Applications
4
Calculators
Each listed tool links to a working calculator with engineering inputs, formulas, examples, notes, and related resources.
Operational AmplifiersAvailable
Inverting Op-Amp Gain Calculator
Calculate ideal inverting amplifier closed-loop gain, gain magnitude, dB gain, and 180° phase inversion.
Operational AmplifiersAvailable
Differential Amplifier Calculator
Calculate ideal differential gain, voltage difference, and output voltage for matched four-resistor op-amp difference amplifiers.
Operational AmplifiersAvailable
Summing Amplifier Calculator
Calculate ideal two-input inverting summing amplifier output voltage, input contributions, and weighted gains.
Operational AmplifiersAvailable
Instrumentation Amplifier Calculator
Calculate instrumentation amplifier gain, differential voltage, and output voltage from Rg and internal resistor values.
Operational AmplifiersAvailable
Voltage Follower Calculator
Calculate ideal unity-gain buffer output voltage, supply margin, and output saturation warning.
Operational AmplifiersAvailable
Comparator Threshold Calculator
Calculate comparator reference threshold voltage, HIGH or LOW output state, and divider-based switching point.
Operational AmplifiersAvailable
Active Low-Pass Filter Calculator
Calculate first-order active low-pass cutoff frequency, RC time constant, passband gain, and -3 dB magnitude.
Operational AmplifiersAvailable
Active High-Pass Filter Calculator
Calculate first-order active high-pass cutoff frequency, RC time constant, passband gain, and -3 dB magnitude.
Operational AmplifiersAvailable
Integrator & Differentiator Calculator
Calculate ideal op-amp integrator and differentiator output voltage, RC time constant, and characteristic frequency.
Operational AmplifiersAvailable
Slew Rate Calculator
Calculate required op-amp slew rate, maximum sine-wave frequency, and maximum output amplitude.
Operational AmplifiersAvailable
Gain Bandwidth Product Calculator
Calculate required op-amp GBW, maximum closed-loop bandwidth, maximum gain, and noise gain.
How to Use These Calculators
Start From the Engineering Question
Choose the calculator that matches the decision you need to make: decode a component marking, size a value, check a frequency response, estimate loss, or verify a safety margin. A category page is useful only when it helps you reach a working tool, so this page lists released calculators only.
Check Units and Assumptions
Calculator results depend on unit choices, idealized formulas, tolerance, temperature, frequency range, and component limitations. Review the formula and engineering notes on each calculator page before using the result in a schematic, BOM, or PCB layout.
Validate Against Real Parts
Use the calculated value as a design reference, then confirm it against datasheets, derating curves, layout parasitics, measurement conditions, and manufacturer limits. The related guides below provide background when a calculation needs more context.
Engineering Applications
Analog gain stages
Feedback networks
Signal conditioning
Active filters
Related Engineering Guides
Engineering Guide
Practical Op-Amp Integrators and Differentiators: Leakage, Reset, and Noise
Design bounded integrator and differentiator circuits with DC return, reset, high-frequency roll-off, headroom, and validation.
17 min · Intermediate
Engineering Guide
Op-Amp Input and Output Range Design: Common Mode, Output Swing, Load, and Supply Headroom
Design op-amp operating range across input common mode, output swing, load current, supply tolerance, references, saturation recovery, and validation.
16 min · Intermediate
Engineering Guide
Op-Amp Stability and Capacitive Loads: Phase Margin, Isolation, Ringing, and Settling
Design stable op-amp circuits across loop gain, noise gain, phase margin, capacitive-load isolation, compensation, ringing, settling, layout, and validation.
17 min · Advanced
Engineering Guide
Op-Amp Noise Analysis: Voltage Noise, Current Noise, Johnson Noise, and Bandwidth
Analyze op-amp noise across voltage and current density, source impedance, resistor Johnson noise, noise gain, equivalent noise bandwidth, filtering, and measurement.
17 min · Advanced
Engineering Guide
Op-Amp DC Precision Design: Offset, Bias Current, Resistor Tolerance, and Error Budgets
Build traceable op-amp DC error budgets across offset, bias current, source resistance, resistor-ratio tolerance, finite gain, loading, drift, and validation.
18 min · Advanced
Engineering Guide
Comparator Thresholds, Slew Rate, Gain-Bandwidth, and Dynamic Limits
Design comparator thresholds and op-amp signal paths using hysteresis, slew rate, full-power bandwidth, noise gain, GBW, settling, and output limits.
19 min · Intermediate
Related categories
Resistors
Resistor calculators for circuit design, component selection, power dissipation, and hardware troubleshooting.
Open →Capacitors
Capacitor calculators for RC timing, filtering, signal coupling, energy storage, and component selection.
Open →Power
Power electronics calculators for regulators, converters, thermal design, current estimates, and hardware margins.
Open →Filters
Electronic filter calculators for cutoff frequency, bandwidth, resonance, passive filters, and active filter design.
Open →Sensors
Sensor calculators for electronic measurement, signal conditioning, sensor interfaces, and sensing circuit design.
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