Tektronix 3 Series MDO Mixed Domain Oscilloscope

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With the largest display in class, improved low-level signal measurement accuracy and industry-leading probe performance, the 3 Series MDO sets a new standard for bench oscilloscopes. Whether you’re testing your baseband design for IoT or just for simple EMI sniffing, the 3 Series has a unique true hardware spectrum analyzer built right in with superior RF test performance and guaranteed RF specifications.



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

Analog Channel

2 Channel / 4 Channel

Digital Channel

16 Channel (optional)

Record Length

10M points

Sampling Rate


Arbitrary Function Generator

Yes (optional)

Spectrum Analyzer

9kHz - 1GHz (standard) or 3GHz (optional)

Serial Bus Decoding

Yes (optional)

Digital Voltmeter

Free with product registration

Frequency Counter

Free with product registration


3 years



Typical applications

  • Embedded design and IoT
    Discover and solve issues quickly by performing system level debug on mixed signal embedded systems including today's most common serial bus technologies with the 3 Series MDO and support for a broad set of common serial buses.

  • Power design
    Make reliable and repeatable voltage, current, and power measurements using automated power quality, switching loss, harmonics, ripple, modulation, and safe operating area measurements with the widest selection of power probes in an affordable solution.
  • Education
    Managing multiple instruments on a bench can be troublesome. The 3 Series MDO combines analog, digital, and RF measurements with a signal source in a single, small (5.9 in., 149 mm deep) instrument. The combination of a small instrument and high level of integration aids in the teaching of various electronics principles as well as in its usage for more sophisticated lab experiments. Full upgradeability enables adding functionality over time as needs change or budgets allow.
  • Manufacturing Test and Troubleshooting
    Size and space constraints can play havoc on a manufacturing floor. The 3 Series MDO minimizes rack or bench space by integrating multiple instruments into one small package. Integration reduces cost associated with utilizing multiple different instrument types in manufacturing test or troubleshooting stations.
  • Service Installation and Maintenance
    Having the right instruments when and where you need them is critical. The 3 Series MDO combines analog waveforms, digital logic, and spectrum analysis in a lightweight (11.7 lbs, 5.3 kg), portable package - making it the perfect choice where space is limited and flexibility is desired.

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