Bandwidth ↔ rise time calculator
Online calculator for formulas used in electronic circuit design and electrical engineering.Basic electric calculations:
Ohm's Law,
Ohm's Law with power,
DC power,
AC real power,
LC resonant frequency,
Capacitor charging/discharging,
Capacitive reactance,
Capacitive current + reactive power,
Capacitor energy,
Capacitor Δ energy,
RC discharging,
Inductor square pulse,
Inductive reactance,
Inductive current + reactive power,
Inductor energy,
2 parallel resistors,
3 parallel resistors,
System bandwidth,
Bandwidth ↔ rise time
Wire and winding calculations:
Calculate Bandwidth ↔ rise time: 0.35, 100MHz, ns
This can calculate the oscilloscope rise time (rt) from the bandwidth (BW) or the bandwidth from the rise time. The factor k (also called a coefficient, constant or multiplier) is typically a number from 0.3 to 0.5. Traditionally, a 0.35 factor was used. This works well for a -3 dB bandwidth and a 10-90% rise of a system resembling a simple RC low-pass filter (Gaussian response). Modern digital oscilloscopes tend to have a much steeper frequency roll-off to prevent aliasing, so a 0.4 to 0.45 factor works better. BW x rt = k BW = k / rt rt = k / BW
Enter any 2 values, the 3rd one will be calculated:
Some common probe and oscilloscope bandwidth values:
Bandwidth ↔ rise time formula says:
•A 100MHz (one hundred megahertz) bandwidth oscilloscope has about 3.5ns (three point five nanoseconds) rise time using a rise time x BW coefficient of 0.35 (zero point three five) for the estimation.•If the oscilloscope rise time is 3.5ns (three point five nanoseconds), its bandwidth is roughly 100MHz (one hundred megahertz) using a factor of 0.35 (zero point three five).
This is a simple online calculator for formulas used in electronic engineering and design.
This online calculator is for reference only. I do not guarantee it to work correctly. You use this at your own risk only.