Contents
What is the input impedance of an oscilloscope?
Key Oscilloscope Specifications
| Characteristic | Value |
|---|---|
| Resolution | 8-bit |
| Vertical sensitivity | 2mV/div – 5V/div |
| Time base | 2ns/div – 50s/div |
| Input Impedance | 1 MΩ ±3% || 16pF ±3pF |
What is the resistance of an oscilloscope?
DMMs usually have as high an input resistance as possible, given their overvoltage protection, which manufacturers usually set around 10M (but can be much higher for high-end devices). It depends on the scope and the multimeter. Read the datasheet of the tool in question.
How is the input impedance of an oscilloscope determined?
The input impedance of an oscilloscope is a complex quantity which can be represented by a resistance in parallel with a capacitance between the scope input terminal and the ground. The impedance is thus frequency dependent. a) First, determine the internal scope resistance with a DC signal.
How to find the probe resistance of an oscilloscope?
If the scope internal resistance R S = 1 MΩ, its capacitance is C S = 25 pF and the cable connecting the probe to the scope has capacitance C C = 150 pF, find the values of the required probe resistance R P and capacitance C P for 10:1 attenuation. Make sure that the same attenuation is also valid for dc measurements.
How is the rise time of an oscilloscope calculated?
The rise time of a scope is very closely related to the bandwidth. It can be calculated as Rise Time = 0.35 / Bandwidth. Maximum Input Voltage — Every piece of electronics has its limits when it comes to high voltage.
What is the compensation range of an oscilloscope probe?
It is a measure of the ability of the probe to reject any signals that are common to both inputs. Compensation range: The compensation range of the scope probe is the range of input capacitance of the oscilloscope that the probe can compensate, i.e. it can be used with oscilloscopes with input capacitance levels within a given range.