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3 Series MDO

3 Series MDO


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Mixed Domain Oscilloscope

Experience a big, high definition display in a compact, portable scope. An award winning, made-for-touch interface turns the learning curve into a step function. The unique built-in spectrum analyser option makes it great for RF analysis.



The biggest display in its class, and remarkable user interface

Tektronix 3 & 4 Series Overview Chpt 1_video_thumb

See how the 3 Series MDO user interface helps you work better and faster


With the same made-for-touch user interface technology as the award-winning 5 Series along with the largest display and highest resolution display in its class, the 3 Series MDO works how a scope should work.

  • 11.6 inch HD display
  • Pinch, tap, swipe capacitive touchscreen



Compact, yet packed with capabilities

Its only 6 inches (15cm) deep but the 3 Series MSO is a lot of oscilloscope. It gives you the tools you need to validate and troubleshoot complex embedded systems.

  • Up to 5 Gs/s sample rate on each analogue channel
  • More than 125 trigger combinations
  • Dozens of automated measurements
  • Wide range of available serial bus trigger and decode options
  • Optional 16 digital logic channels
  • Optional integrated 1GHz or 3GHz spectrum analyser
  • Optional 50MHz arbitrary/function generator

Tektronix 3 & 4 Series Overview Chpt 2_video_thumb

See how to take great measurements and find elusive artifacts and anomolies


Specs at a glance

Input Channels

  • 2 or 4 analog
  • 16 digital1
  • 1 spectrum analyser1


  • 100MHz, 200MHz, 350MHz, 500MHz or 1GHz

Sample Rate

  • 5 GS/s (1 GHz model), 2.5 GS/s (all other models) on analog models
  • Up to 8.25 GS/s (121 ps resolution) on digital channels

Record Length

  • 10 Mpoints on all channels

Spectrum Analyser1

  • 1 GHz or 3 GHz

Signal Generator1

  • Arbitrary, Sine, Square, Pulse, Triangle, DC Level, Gaussian, Lorentz, Exponential Rise/Fall, Sin(x)/x, Random Noise, Haversine, Cardiac

Digital Voltmeter2

  • 4-digit AC RMS, DC, AC + DC RMS voltage measurements

Trigger Frequency Counter2

  • 5-digit frequency measurements

Advanced Analysis1

  • Automated Power Measurements

Protocol Support1

  • I2C, SPI
  • RS-232, RS-422, RS-485, UART
  • CAN, CAN FD, LIN, FlexRay
  • MIL-STD-1553, ARINC 429
  • I2S, LJ, RJ, TDM
  • USB 2.0


  • 11.6 inch (295mm)
  • HD colour (1920 x 1080) capacitive touchscreen


  • 5.3 kg


Included probes and accessories

1 - Optional and upgradeable
2 - Free with product registration



A built-in spectrum analyser

Tektronix 3 & 4 Series Overview Cht 4_video_thumb

See the built-in spectrum analyser at work


Whether you're a spectrum analyser expert or occasional user, you'll be able to put the built-in spectrum analyser straight to work. Unlike other oscilloscopes that offer FFT "spectrum analysis", the 3 Series has a true spectrum analyser built right in.

3 Series vs regular scope FFTs

  • 1GHz or 3GHz built-in spectrum analyser options
  • Industry's only true integrated spectrum analyser hardware
  • Ultra-wide capture bandwidth up to 3GHz


Capable. Upgradeable.

Get all the debug tools you need right away or add them when you need them.

  • Bandwidth up to 1GHz
  • Digital channels: MSO option adds 16 digital channels
  • Spectrum analyser up to 3GHz
  • DVM/Frequency counter (free with registration)
  • Arbitrary/Function Generator
  • Advanced Analysis
    • Serial bus decoding and triggering
    • Automated power measurements
Document_icon Find out more about upgrades with this guide

Tektronix 3 & 4 Series Overview Chpt 3_video_thumb

See the capability the 3 Series MDO can bring to your bench





Sample Rate
Vertical Resolution Record Length

MDO32 3-BW-100

2 100 MHz
2.5 GS/s
8 bits 10 Mpoints

MDO34 3-BW-100

4 100 MHz
2.5 GS/s
8 bits 10 Mpoints

MDO32 3-BW-200

2 200 MHz
2.5 GS/s
8 bits 10 Mpoints

MDO34 3-BW-200

4 200 MHz
2.5 GS/s
8 bits 10 Mpoints

MDO32 3-BW-350

2 350 MHz
2.5 GS/s
8 bits 10 Mpoints

MDO34 3-BW-350

4 350 MHz
2.5 GS/s 8 bits 10 Mpoints

MDO32 3-BW-500

2 500 MHz
2.5 GS/s
8 bits 10 Mpoints

MDO34 3-BW-500

4 500 MHz
2.5 GS/s
8 bits 10 Mpoints

MDO32 3-BW-1000

2 1 GHz
5 GS/s
8 bits 10 Mpoints

MDO34 3-BW-1000

4 1 GHz
5 GS/s
8 bits 10 Mpoints


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Embedded serial bus analysis

Tektronix 3 Series MDO Embedded serial bus analysis



The 3 Series MDO helps you overcome system level challenges with automatic trigger, decode and search options for serial buses. Options are available individually or as a cost-effective bundle.

  • I2C, SPI

  • RS-232/422/485/UART

  • CAN, CAN FD, LIN, FlexRay

  • MIL-STD-1553, ARINC 429


  • USB 2.0 (LS/FS/HS)


Power measurements and analysis

The 3 Series offers power test solutions to help get fast answers in today's world of higher switching speeds and stricter noise limits.

  • Power loss measurements at switching device
  • Measurement and analysis of ripple and noise
  • Characterization of power semiconductor devices
Tek_doc_icon_nobg-1.png Read this App Note on Power Supply Measurement and Analysis with the 3-PWR

Tektronix 3 Series MDO power measurements and analysis



Electromagnetic interference (EMI) troubleshooting

Tektronix 3 Series MDO Electromagnetic interference (EMI) troubleshooting



Not getting to the root cause of EMI failures can prevent you from shipping product. The 3 Series MDO with its built in spectrum analyser can help you sniff out sources of EMI fast.


Engineering education

Go beyond AC and DC theory to cover mixed signal designs with logic channels and built-in spectrum analyser. Tek scopes have earned their reputation for reliability and are the brand of scope most often found in industry labs.

  • Reliable instruments with 3-year warranties

  • Professional instruments used widely in industry

  • Available with integrated function generator, spectrum analyser, logic channels and serial bus decoding

Tektronix 3 Series MDO in engineering education



  Whether you're debugging serial buses or designing to high speed serial standards, we've set a new standard in scope user interface so you can get to your answers faster and easier.  

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