Tektronix 3 Series MDO Mixed Domain Oscilloscopes
2 models with full specifications from Tektronix.
The Tektronix 3 Series MDO Mixed Domain Oscilloscope family is designed for engineers requiring multi-domain analysis in a compact benchtop form factor. Featuring a unified 11.6-inch Full HD (1920 x 1080) capacitive touchscreen display, this series integrates analog oscilloscope functions with optional built-in instruments such as a spectrum analyzer, arbitrary/function generator, and logic analyzer. The series consists of two primary models: the 2-channel Tektronix MDO32 and the 4-channel Tektronix MDO34. Both instruments offer upgradeable bandwidth configurations and flexible acquisition modes, facilitating deep signal analysis and quick debugging.
- Display Size
- 11.6 in (295 mm) Full HD Capacitive Touch
- Analog Bandwidths
- 100 MHz, 200 MHz, 350 MHz, 500 MHz, 1 GHz
- Max Real-Time Sample Rate
- 2.5 GS/s (5 GS/s half-channel on 1 GHz models)
- Record Length
- 10 Mpoints per channel
- Vertical Resolution
- 8 bits (up to 11 bits in High Resolution mode)
Models in this series
| Model | Type | Acquisition Modes | Analog Bandwidth | Cursor Types |
|---|---|---|---|---|
| MDO34 | 4-channel | Sample, Peak Detect, Averaging, Envelope, High Resolution, Roll | 100 MHz, 200 MHz, 350 MHz, 500 MHz, or 1 GHz (option dependent) | Waveform, V Bars, H Bars, V&H Bars |
| MDO32 | *misc | Sample, Peak Detect, Averaging, Envelope, Hi Res, Roll | 100 MHz, 200 MHz, 350 MHz, 500 MHz, 1 GHz (option dependent) | Waveform, V Bars, H Bars, V and H Bars |
Channel Configurations and Model Comparison
The fundamental difference between the two models in the 3 Series MDO family is their analog channel count. The Tektronix MDO32 features 2 analog channels, serving as a robust tool for standard dual-signal testing and general debugging. The Tektronix MDO34 provides 4 analog channels, making it better suited for multi-point analysis such as tracking power sequencing, serial buses, and timing relationships across complex circuits.
To ensure immediate out-of-the-box operation, the Tektronix MDO34 includes four passive probes. Depending on the bandwidth selected, these will be the TPP0250, TPP0500B, or TPP1000 passive probes.
Bandwidth and Acquisition Performance
Both the MDO32 and MDO34 models support configurable bandwidth options ranging from 100 MHz up to 1 GHz. The real-time sample rate is 2.5 GS/s per channel, though 1 GHz models can interleave to deliver 5 GS/s (on a single channel for the MDO32, or across two channels on the MDO34).
Engineers can select from multiple acquisition modes depending on the signal characteristics being analyzed:
- Sample: Standard acquisition mode.
- Peak Detect: Captures narrow high-frequency spikes.
- Averaging and Envelope: Helps visualize repetitive patterns and signal boundaries.
- High Resolution: Enhances vertical resolution from 8 bits up to 11 bits.
- Roll: Displays slow-moving waveforms in real time.
Input Specifications and Physical Footprint
The series accommodates different probe and signal interfaces with a dual input impedance design, featuring both 1 MΩ and 50 Ω modes (each within ±1% tolerance). Input sensitivity ranges from 1 mV/div to 10 V/div at 1 MΩ, and 1 mV/div to 1 V/div at 50 Ω. Safety limits are rated at 300 V RMS CAT II for 1 MΩ inputs and 5 V RMS for 50 Ω inputs.
From a physical layout perspective, the chassis design incorporates a Kensington lock slot for security. When positioning these units on a test bench, a cooling clearance of 50 mm (2 in) is required on the left, right, and rear panels. For external integration, the Tektronix MDO34 provides three USB 2.0 Host ports, a USB 2.0 Device port, 10/100 LAN, and an HDMI output.
Frequently asked questions
- What is the maximum waveform capture rate of the 3 Series MDO?
- The Tektronix MDO32 has a maximum waveform capture rate of more than 280,000 waveforms per second, enabling the capture of intermittent errors and transient glitches.
- What are the hardware bandwidth limits for this series?
- Both models support selectable hardware bandwidth limits of 20 MHz and 250 MHz, with the 250 MHz limit available on configurations with a bandwidth of 350 MHz or higher.
- What power supplies are compatible with these oscilloscopes?
- Both instruments run on universal AC power inputs from 100 V to 240 V AC (±10%) at 50/60 Hz. The series also supports 400 Hz operation (up to 132 V AC for the MDO34 and 115 V AC for the MDO32), drawing a maximum of 130 W.