Oscilloscopes

An Oscilloscope, also known as O-scope, is a complex electronic laboratory instrument commonly used to capture, process, display and analyse the waveform and bandwidth of electronic signals. The device draws a graph of the instantaneous signal voltage as a function of time. O-scopes is an analyzer of a signal that comes from a signal generator. Digital oscilloscopes are often referred to as digital storage oscilloscope (DSO) or digital sampling oscilloscopes (DSO). You can learn more in our complete guide to oscilloscopes.

Different types of Oscilloscopes

Oscilloscopes fall into various categories. The biggest distinction is whether they are digital or analogue oscilloscopes. Within the digital oscilloscopes area, there are several different types.

  • Digital oscilloscopes: Basic type of oscilloscope used. Has several capabilities from a processing of the basic waveform to advance triggering.
  • Storage Oscilloscope (DSO): Has a memory to sore waveforms and display them for a period of time.
  • Phosphor oscilloscopes (DPO): use a parallel processing architecture to enable it to capture and display signals.
  • Digital sampling oscilloscopes: Used for analysing high-frequency signals for example up to 50 GHz.
  • Mixed Domain Oscilloscope, MDO: Can operate in more than one domain, i.e. in time to display waveforms and in frequency to display signal spectra.
  • Mixed Signal Oscilloscope, MSO: Combines an oscilloscope function with that of a logic analyser.

How does a digital oscilloscope work?

The oscilloscope is a graph-displaying instrument. It draws a graph of an electrical signal. In most applications the graph shows how signals change over time, the vertical (Y) axis represents voltage and the horizontal (X) axis represents time. Some of the oscilloscopes featuring additional user-friendly elements such as USB ports for downloading measurement data.

In its simplest form, a digital oscilloscope features six elements:

  • Analogue vertical input amplifiers
  • Analogue-to-digital converter and a digital waveform memory
  • Time base which features a triggering and clock drive
  • Circuits for waveform display and reconstruction
  • LED or LCD display
  • Power supply

How to choose the best oscilloscopes?

Oscilloscopes are widely used in industry and are being increasingly used as they now offer better performance levels than ever before.

There are many different types of oscilloscope each having their own characteristics. For example, the small, lightweight handheld digital oscilloscopes are ideal for use by technicians working in service, maintenance and installation applications. This means that different oscilloscopes types are applicable for different applications and choosing the correct type enables it to perform to its best and therefore gain the most from it.


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Description Price Number of Channels Bandwidth Digital/Analogue Oscilloscope Form Oscilloscope Type Series Interface Power Source Display Type Memory Depth Minimum Vertical Sensitivity Waveform Refresh Rate Maximum Vertical Sensitivity Minimum Time Base
RS Stock No. 919-5047
Mfr. Part No.FLUKE-123B/INT
BrandFluke
SGD3,861.30
Each
units
2 20MHz Digital - Handheld 123 - Battery - - 5mV/div - 200V/div 20ns
RS Stock No. 793-3654
Mfr. Part No.PICOSCOPE 2204A
SGD212.75
Each
units
2 10MHz Analogue - PC Based PicoScope 2000 - USB - - 10mV/div - 4V/div 10ns/div
RS Stock No. 123-6441
BrandRS PRO
SGD1,830.37
Each
units
4 200MHz Digital Digital Storage Bench - - Mains TFT LCD - 2mV/div - 5V/div 1ns/div
RS Stock No. 111-6775
Mfr. Part No.PicoScope 2406B
SGD740.50
Each
units
4 50MHz Analogue - PC Based PicoScope 2000 - USB - - 4mV/div - 4V/div 2ns/div
RS Stock No. 919-5053
Mfr. Part No.FLUKE-124B/INT
BrandFluke
SGD3,710.00
Each
units
2 40MHz Digital - Handheld 124 - Battery - - 5mV/div - 200V/div 10ns
RS Stock No. 797-3334
Mfr. Part No.MDO3024
BrandTektronix
SGD11,250.86
Each
units
4 200MHz Digital Mixed Domain Portable MDO3000 - Mains TFT LCD - 1mV/div - 10V/div 1ns/div
RS Stock No. 123-6436
BrandRS PRO
SGD773.30
Each
units
2 70MHz Digital Digital Storage Bench - - Mains TFT LCD - 2mV/div - 10V/div 5ns/div
RS Stock No. 123-3539
BrandRS PRO
SGD653.88
Each
units
2 100MHz Digital Digital Storage Portable - - Mains LCD - 2mV/div - 10V/div 1ns/div
RS Stock No. 123-6435
BrandRS PRO
SGD678.95
Each
units
2 50MHz Digital Digital Storage Bench - - Mains TFT LCD - 2mV/div - 10V/div 10ns/div
RS Stock No. 127-1085
Mfr. Part No.023
BrandRed Pitaya
SGD457.41
Each
units
2 40MHz Analogue - PC Based STEMlab - Micro USB - - - - - -
RS Stock No. 797-3346
Mfr. Part No.MDO3014
BrandTektronix
SGD10,111.89
Each
units
4 100MHz Digital Mixed Domain Portable MDO3000 - Mains TFT LCD - 1mV/div - 10V/div 1ns/div
RS Stock No. 846-3402
Mfr. Part No.PicoScope 3203D
SGD705.06
Each
units
2 50MHz Analogue - PC Based PicoScope 3000 - Mains - - 4mV/div - 4V/div 1ns/div
RS Stock No. 725-0489
Mfr. Part No.DSOX2012A
SGD2,835.56
Each
units
2 100MHz Digital Digital Storage Bench InfiniiVision 2000 X - Mains Capacitive Touch Display - 1mV/div - 5V/div 5ns/div
RS Stock No. 793-3657
Mfr. Part No.PICOSCOPE 2205A
SGD308.18
Each
units
2 25MHz Analogue - PC Based PicoScope 2000 - USB - - 10mV/div - 4V/div 5ns/div
RS Stock No. 123-3538
BrandRS PRO
SGD898.08
Each
units
2 50MHz Digital Digital Storage Portable - - Mains LCD - 2mV/div - 10V/div 1ns/div
RS Stock No. 763-1018
Mfr. Part No.DPO4014B
BrandTektronix
SGD11,300.00
Each
units
4 100MHz - - Bench DPO4000 USB Mains TFT LCD - 1mV/div - 10V/div 1ns/div
RS Stock No. 833-5118
Mfr. Part No.DSOX3014T
SGD6,716.49
Each
units
4 100MHz Digital Digital Storage Bench 3000 X - Mains TFT LCD - 1mV/div - 5V/div 5ns/div
RS Stock No. 111-6771
Mfr. Part No.PicoScope 2206B
SGD517.87
Each
units
2 50MHz Analogue - PC Based PicoScope 2000 - USB - - 4mV/div - 4V/div 2ns/div
RS Stock No. 818-2879
Mfr. Part No.PicoScope 3206D MSO
SGD2,041.25
Each
units
2, 16 200MHz Digital Mixed Signal PC Based PicoScope 3000 - Mains - - 10mV/div - 4V/div 500ps/div
RS Stock No. 111-6769
Mfr. Part No.PicoScope 2207B MSO
SGD952.57
Each
units
2, 16 70MHz Digital Mixed Signal PC Based 2000 - USB - - 4mV/div - 4V/div 1ns/div