The Tektronix MDO4000B Series is a family of Mixed Domain Oscilloscopes built around an integrated spectrum analyzer, allowing time-correlated capture of analog, digital, and RF signals in a single instrument. Each model combines four analog channels, 16 digital channels, and one dedicated spectrum analyzer channel, presenting a split display with a traditional time-domain oscilloscope view in the upper half and a frequency-domain spectrum view in the lower half. Because the spectrum analyzer has its own acquisition system that is independent of, but time-correlated to, the analog and digital channel acquisition systems, each domain can be configured optimally for a complete system view.

Applications demonstrated for the series include tuning of a phase-locked loop, where the wide capture bandwidth and a movable Spectrum Time let a single acquisition contain spectral content equivalent to approximately 1,500 traditional spectrum-analyzer setups, and EMI troubleshooting, where time-correlated views of analog, digital, and RF signals help connect time-domain events such as clocks, power supplies, and serial data links to offending spectral emissions. When paired with SignalVu-PC vector signal analysis software and its Live Link option, the series supports analysis tasks including Wi-Fi (IEEE 802.11 a/b/g/j/n/p/ac) signal-quality analysis, pulse analysis, audio measurements, and AM/FM/PM modulation analysis.

ValueTronics stocks and holds its own inventory in a 20,000-square-foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. Every used unit is inspected and functionally verified in-house before it ships, while new units ship factory-sealed exactly as received from the manufacturer.

Compare Other Models in This Series

The MDO4000B Series comprises six Mixed Domain Oscilloscope models that share the same core architecture — four analog channels, 16 digital channels, and one integrated spectrum analyzer channel — while differing in analog bandwidth and spectrum analyzer frequency range. The series provides the same comprehensive feature set found on the MSO4000B Series of Mixed Signal Oscilloscopes.

Every model integrates an oscilloscope, logic analyzer, and spectrum analyzer in one instrument, providing time-correlated views of analog, digital, and RF signals. Model selection centers on the analog bandwidth required and whether the spectrum analyzer must reach 3 GHz or 6 GHz.

Each pre-owned model in the series below is presented on its own dedicated product page with condition-matched pricing. Select the bandwidth and spectrum-analyzer frequency tier that matches your application, then choose the pre-owned listing for that specific model.

The models differ primarily along two axes. Analog bandwidth steps through 100 MHz (MDO4014B-3), 350 MHz (MDO4034B-3), 500 MHz (MDO4054B-3 and MDO4054B-6), and 1 GHz (MDO4104B-3 and MDO4104B-6), with corresponding rise-time figures ranging from 3.5 ns at 100 MHz down to 350 ps at 1 GHz. The 1 GHz models provide a 5 GS/s sample rate on one or two channels, while the lower-bandwidth models provide 2.5 GS/s.

The second axis is the spectrum analyzer frequency range: -3 suffix models cover 9 kHz to 3 GHz, while -6 suffix models extend to 9 kHz to 6 GHz. All six models share 16 digital channels, a 20M point record length, and the same integrated spectrum analyzer architecture. Refer to the comparison table below for the exact per-model figures.

Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below.

Accessories Supplied

• TPP1000 1 GHz, 10X, 3.9 pF passive voltage probe (one per analog channel)
• One P6616 16-channel logic probe and a logic probe accessory kit (020-2662-xx)
• Front cover (200-5130-xx)
• N-to-BNC adapter (103-0045-00)
• Documentation CD (063-4367-xx)
• Accessory bag (016-2030-xx)
• User manual
• Power cord
• OpenChoice Desktop Software
• Calibration certificate documenting traceability to National Metrology Institute(s) and ISO9001 quality system registration

Product Core & Specifications

Important: Maximum input voltage — 1 MΩ: 300 VRMS CAT II with peaks ≤ ±425 V; 50 Ω: 5 VRMS with peaks ≤ ±20 V (DF ≤ 6.25%). Spectrum analyzer input DC maximum before damage: ±40 VDC.

Important: Serial protocol triggering, decode, and search (I2C, SPI, USB, Ethernet, CAN, LIN, FlexRay, RS-232/422/485/UART, MIL-STD-1553, and I2S/LJ/RJ/TDM), advanced RF triggering, power analysis, limit and mask testing, and HDTV/custom video analysis are optional and require the corresponding application modules.

Important: High-speed USB support and the 400 ps to 1000 s time base are available only on models with 1 GHz analog channel bandwidth.

Important: ≥350 MHz bandwidth models are recommended for 100BASE-TX Ethernet and for mask testing on telecomm standards >55 Mb/s; 1 GHz bandwidth models are recommended for mask testing on high-speed (HS) USB.

Important: The optional TPA-N-PRE preamplifier and TPA-N-VPI N-to-TekVPI adapter (which enables any active 50 Ω TekVPI probe to be used on the spectrum analyzer input) are not included with the base unit and must be ordered separately (see Recommended accessories).

Important: Three-year warranty covering all parts and labor, excluding probes. Probes and accessories are not covered by the oscilloscope warranty and service offerings.

About this Pre-Owned unit

This pre-owned unit is inspected and functionally verified in-house before it ships and is backed by our pre-owned warranty. To confirm its exact condition, firmware revision, installed options, or included accessories for your application before ordering, contact our Test Architects.

• Warranty included
• Functional verification included
• Standard Calibration Upgrade Options: No Calibration Required, NIST Traceable, Z540.1 or ISO 17025 with Data, Z540.3 Guardbanding with Data.
• Note that unnecessary accessories may not be included (contact Test Architect to confirm).

ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application.

Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.