The total capacitance of a parallel capacitor circuit is 1/ (1/C1+1/C2+1/C3), etc.
https://www.digikey.com/en/resources/conversion-calculators/conversion-calculator-series-and-parallel-capacitor
The voltage divider will produce a precise output voltage that is a fraction of the input voltage.
https://www.digikey.com/en/resources/conversion-calculators/conversion-calculator-voltage-divider
The Tee Attenuator is a basic attenuator that can be used to reduce signal levels or to match unequal impedances.
https://www.digikey.com/en/resources/conversion-calculators/conversion-calculator-tee-attenuator
The Bridged Tee Attenuator is used to attenuate a signal in a line without changing the impedance of the circuit.
https://www.digikey.com/en/resources/conversion-calculators/conversion-calculator-bridged-tee-attenuator
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