Signals and amplification
Dividers, op amps, transistors and LED drive.
Included tools
Ohm's lawDividers, op amps, transistors and LED drive.Voltage dividerDividers, op amps, transistors and LED drive.Op-amp gainCalculate gain and output for inverting or non-inverting operational-amplifier stages.BJT transistorDividers, op amps, transistors and LED drive.LED resistor calculatorDividers, op amps, transistors and LED drive.
Component selection
Always check units, prefixes and order of magnitude. Do not use an ideal result without margin or a datasheet check. Compare the result with temperature, tolerances and real conditions.