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The Tektronix TDS600C series brings together two four-channel digital storage oscilloscopes — the TDS694C and the TDS684C — built to capture the fastest signals in today's digital designs with high fidelity and resolution. The TDS694C delivers 3 GHz of bandwidth to preserve fast rising edges and accurately show signal detail, while digitizing at 10 GS/s simultaneously on all four channels. Paired with a high-stability timebase, it makes critical timing measurements — including channel-to-channel measurements captured in a single acquisition — with high resolution and accuracy.
These oscilloscopes are aimed at the validation and characterization of high-speed digital designs: verifying simulation performance with real measurements, ensuring that desired design margins exist, making jitter measurements on high-speed data, phase-locked loops and spread-spectrum clock circuits, and capturing glitches, cross-talk and setup/hold violations. In telecommunications and data communications design they characterize rise times, overshoot and channel-to-channel timing and verify and test high-speed serial data streams. They also serve high-energy physics work for transient event capture.
ValueTronics supports every TDS600C order from our own 20,000-square-foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois, where we stock and hold our inventory on hand. Every pre-owned unit is inspected and functionally verified in-house before it ships, while new units ship factory-sealed exactly as received from the manufacturer.
Tektronix, Inc. was founded in 1946 in Beaverton, Oregon, and built its name on oscilloscope technology. The company was acquired by Danaher Corporation in 2007 and became part of Fortive Corporation after Fortive was spun off from Danaher in 2016.
The Tektronix TDS600C series consists of two four-channel color digital storage oscilloscopes, the TDS694C and the TDS684C, that share a common advanced trigger architecture, measurement system and color display while differing in bandwidth, sample rate and several vertical and timebase specifications.
Both models deliver full-bandwidth single-shot capture on all four channels simultaneously, along with the same 29 automatic measurements, waveform math and pass/fail template testing, so the choice between them comes down to the signal speed and timing resolution each application requires.
Each model in the series below is its own dedicated pre-owned product page with condition-matched pricing. Select the model and configuration whose bandwidth, sample rate and input characteristics match your measurement requirements.
The TDS694C is the higher-bandwidth member of the series, providing 3 GHz of bandwidth and 10 GS/s on every channel, a ±10 ppm timebase, approximately ±15 ps time interval measurement accuracy, 1% vertical accuracy and 100 ps peak detect. It supports cross triggering with a Tektronix TLA700 logic analyzer and an optional 120,000-point long record length, and uses the P6249 4 GHz active probe as its companion.
The principal differences follow the bandwidth tiers shown in the comparison table: the TDS694C provides 3 GHz bandwidth with 10 GS/s per channel, while the TDS684C provides 1 GHz bandwidth with 5 GS/s per channel. Record length also differs — up to 15,000 points per channel on the TDS684C versus up to 30,000 points (optionally 120,000) on the TDS694C — as do time interval measurement accuracy and timebase accuracy, which tighten to ±10 ppm on the TDS694C.
The models also differ in vertical and input flexibility: the TDS684C offers 1 mV/div to 10 V/div sensitivity, selectable 20 MHz, 250 MHz and full bandwidth limits, AC/DC/GND coupling and both 1 MΩ and 50 Ω inputs, while the TDS694C uses a 50 Ω DC-coupled input at 10 mV/div to 1 V/div with full bandwidth only. Video triggering and several passive-probe options are available on the TDS684C but not the TDS694C, whereas 100 ps peak detect and TLA cross triggering are exclusive to the TDS694C.
| Model | Bandwidth | Sample Rate | Channels |
|---|---|---|---|
| TDS684C | 1 GHz | 5 GS/s | 4 |
| TDS694C | 3 GHz | 10 GS/s | 4 |
Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below.
| Specification | Value |
|---|---|
| Time Base System | |
| Time Bases | Main and delayed |
| Time/div Range | 200 ps/div to 10 s/div |
| Time Base Accuracy | ± 100 ppm |
| Time Interval Measurement Accuracy | ± [(0.2/sample rate) + (100 ppm x |reading|)] single shot (≈50 ps @ 5 GS/s) |
| Record Length per Channel | 500 to 15,000 pts |
| Trigger Jitter | 8 psRMS (typical) |
| Pre-trigger Position | 0% to 100% of record |
| Channel-to-channel Deskew Range | ± 25 ns |
| Vertical System | |
| Vertical Resolution | 8-Bit (> 11-Bit with averaging) |
| Vertical Sensitivity | 1 mV/div to 10 V/div |
| Floppy Disk Drive | Store reference waveforms, setups and image files on 3.5 in. 1.44 MB or 720 K Microsoft DOS-format floppy disk |
| Maximum Input Voltage | 300 V CAT II; ± 400 V peak. Derate at 20 dB/decade above 1 MHz |
| DC Gain Accuracy | ± 1.5% |
| Position Range | ± 5 divs |
| Offset | ± 1 V from 1 to 99.5 mV/div, ± 10 V from 100 mV to 995 mV/div, ± 100 V from 1 V to 10 V/div |
| Bandwidth Selections | 20 MHz, 250 MHz and full |
| Input Impedance Selections | 1 MΩ in parallel with 10 pF, or 50 Ω (AC and DC coupling) |
| Input Coupling | AC, DC or GND |
| AC Coupled Low Frequency Limit | < 10 Hz when AC, 1 MΩ coupled. < 200 kHz when AC, 50 Ω coupled |
| Channel Isolation | > 100:1 at 100 MHz and > 30:1 at BW for any two channels having equal V/div settings |
| Acquisition Modes | |
| Peak Detect | High frequency and random glitch capture. Captures glitches of 1 ns using acquisition hardware at all real-time sampling rates |
| Sample | Sample data only |
| Envelope | Max/min values acquired over one or more acquisitions |
| Average | Waveform data from 2 to 10,000 waveforms (selectable) is averaged |
| Single Sequence | Use RUN/STOP button to capture a single triggered acquisition at a time, which may be automatically saved to NVRAM with AutoSave |
| Triggering System | |
| Edge (main and delayed) | Conventional level-driven trigger. Positive or negative slope on any channel or rear panel auxiliary input. Coupling selections: DC, AC, noise reject, HF reject, LF reject |
| Logic – Pattern | Specifies a logical combination (AND, OR, NAND, NOR) of the four input channels (high, low, don't care). Trigger when pattern stays true or false for a specified time |
| Logic – State | Any logical pattern of channels 1, 2 and 3 plus a clock edge on channel 4. Triggerable on rising or falling clock edge |
| Logic – Setup/Hold | Trigger on violations of both setup time and hold time between clock and data which are on two input channels |
| Pulse – Glitch | Trigger on or reject glitches of positive, negative or either polarity. Minimum glitch width is 1.0 ns with 200 ps resolution |
| Pulse – Runt | Trigger on a pulse that crosses one threshold but fails to cross a second threshold before crossing the first again |
| Pulse – Width | Trigger on width of positive or negative pulse either within or out of selectable time limits (1 ns to 1 s) |
| Pulse – Slew Rate | Trigger on pulse edge rates that are either faster or slower than a set rate. Edges can be rising, falling or either |
| Pulse – Timeout | Trigger on an event which remains high, low or either, for a specified time period, selectable from 1 ns to 1 s, with 200 ps resolution |
| Video (optional) | Trigger on a particular line of individual, odd/even or all fields. Trigger on a specific pixel of a line by using the video trigger with delay by events. Choose positive or negative horizontal sync polarity. 525/NTSC: monochrome or color (studio-quality NTSC) sync formats. 625/PAL: color or monochrome (studio-quality PAL) sync formats. HDTV: 1125/60, 1050/60, 1250/50 and 787.5/60 HDTV formats |
| Trigger Bandwidth (edge type) | 1 GHz |
| Main Trigger Modes | Auto, normal, single |
| Delayed Trigger | Delay by time, events, or events and time |
| Delay by Time Range | 16 ns to 250 s |
| Delay by Events Range | 2 to 9,999,999 events |
| External Trigger Input | Input impedance: ≥1.5 kΩ; max. input voltage: ± 20 V (DC + peak AC) |
| Display Characteristics | |
| Waveform Style | Dots, vectors, variable persistence from 32 ms to 10 s, infinite persistence and intensified samples |
| Color | Standard palettes and user-definable color for waveforms, text, graticules and cursors. Measurement text and cursor colors matched to waveform. Waveform collision areas highlighted with different color. Statistical waveform distribution shown with color grading through variable persistence |
| Color Grading | With variable persistence selected, historical timing information is represented by temporal or spectral color scheme |
| Graticules | Full, grid, cross-hair, frame and NTSC and PAL (with video trigger option) |
| Format | YT and XY |
| Resolution | 640 horizontal by 480 vertical displayed pixels (VGA) |
| Color CRT Monitor | 7 in. diagonal NuColor liquid crystal full-color shutter, 256 levels |
| Measurement System | |
| Automatic Waveform Measurements | Period, frequency, +width, –width, rise time, fall time, +duty cycle, –duty cycle, delay, phase, burst width, high, low, max, min, peak to peak, amplitude, +overshoot, –overshoot, mean, cycle mean, RMS, cycle RMS, area, cycle area, extinction ratio (ratio, dB, %) and mean optical power. Continuous update of up to four measurements on any combination of waveforms |
| Measurement Statistics | Display minimum and maximum or mean and standard deviation on any displayed single-waveform measurements |
| Thresholds | Settable in percentage or voltage |
| Gating | Any region of the waveform may be isolated for measurement using vertical bars |
| Snapshot | Performs all measurements on any one waveform showing results from one instant in time |
| Cursor Measurements | Absolute, delta: Volts, time, frequency, and NTSC IRE and line number (with video trigger option) |
| Cursor Types | Horizontal bars (volts), vertical bars (time); operated independently or in tracking mode |
| Histogram Measurements | Mean, median, standard deviation, hits, waveform count, peak hits, peak-to-peak, % mean ± 1, 2 and 3 standard deviations |
Important: Maximum input voltage: 300 V CAT II (±400 V peak), derated at 20 dB/decade above 1 MHz; the TDS694C is limited to 5 VRMS.
Important: Measurement probes are not included in the standard configuration (which supplies only manuals, power cord, front cover, deskew fixture, footswitch and accessory pouch). The TDS694C's companion probe is the P6249 4 GHz Active Probe; recommended accessories include the P6249 4 GHz Active Probe, P6248 1.7 GHz Differential Probe, P6330 3.5 GHz Differential Probe and SureFoot surface mount device interconnects.
Important: The maximum record length of 120,000 points/channel applies only to the TDS694C with the long record length option (Opt. 1M); the TDS684C maximum is 15,000 points/channel.
Important: Option AC (China power plug) is not available for the TDS694C.
Recommended pairing: the P6249 4 GHz active probe is the TDS694C's companion probe, sized to contact fine-pitch, high-density boards with a short ground connection that preserves maximum system bandwidth.
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.
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.
Model No
Tektronix
Condition
Pre-Owned
Manufacturer
Tektronix
Osc_ch
4
Osc_freq
1 GHz
Osc_r
1 MΩ in parallel with 10 pF, or 50 Ω
Osc_sampl
5 GS/s
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