# Tektronix TDS7404 4 GHz Digital Phosphor Oscilloscope (Pre-Owned)

# Tektronix TDS7404 4 GHz Digital Phosphor Oscilloscope (Pre-Owned)

## Key Features At A Glance

-   Bandwidth from 500 MHz to 4 GHz across the series for high-speed logic and multi-gigabit communications
-   Real-time sample rates to 20 GS/s with acquisition memory options spanning 2 to 32 Megasamples across the series
-   3rd-generation Digital Phosphor (DPX) technology surfaces infrequent events through high waveform capture rates
-   10.4-inch touch-sensitive color display with classic analog-style controls plus mouse and keyboard operation
-   Open Microsoft Windows environment with built-in networking for documentation, analysis, and file sharing
-   GPIB (IEEE 488.2), LAN (10/100Base-T), USB, RS-232, and IEEE 1284 parallel interfaces for ATE and remote control
-   Optional TDSJIT2 jitter analysis and TDSDDM2 disk drive measurement software packages
-   Available in benchtop or rackmount configurations with field-installable acquisition-memory upgrades

The Tektronix TDS7000 Series is a family of Digital Phosphor Oscilloscopes built for verification, debug, and characterization of sophisticated electronic designs. The series combines high-performance signal acquisition with operational simplicity and open connectivity to the design environment. Classic analog-style front-panel controls, a large touch-sensitive color display, and graphical menus give engineers intuitive control, while open access to the Microsoft Windows operating system enables extensive customization and extensibility.

An oscilloscope captures and displays electrical signals as waveforms—voltage plotted against time—so an engineer can see a signal's amplitude, timing, and shape. Within that role, the TDS7000 Series is applied to jitter and timing analysis, spectral analysis, disk drive analysis, and the investigation of transient phenomena, alongside the verification, debug, and characterization work the family is designed around.

ValueTronics supports this purchase 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 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 Tektronix TDS7000 Series brings together signal acquisition performance, operational simplicity, and open connectivity in a family of Digital Phosphor Oscilloscopes aimed at verification, debug, and characterization of sophisticated electronic designs. Models range from 500 MHz to 4 GHz of analog bandwidth with single-shot sample rates to 20 GS/s, meeting the demands of high-speed logic families and multi-gigabit communication standards.

Shared across the family are classic analog-style controls, a 10.4-inch touch-sensitive display, an open Microsoft Windows environment, built-in networking, and 3rd-generation DPX technology for high waveform capture rates. The models differ chiefly in bandwidth, sample rate, and available acquisition memory, as detailed in the comparison below.

Each pre-owned model in the series below is its own dedicated product page with condition-matched pricing. Select the bandwidth tier that fits your application to see that pre-owned unit's availability and price.

The three models share four input channels but step through distinct bandwidth tiers: the TDS7054 at 500 MHz, the TDS7104 at 1 GHz, and the TDS7404 at 4 GHz. Single-shot real-time sample rate scales with the tier as well—up to 5 GS/s, 10 GS/s, and 20 GS/s respectively at one channel—while equivalent-time sampling reaches 250 GS/s on all three.

Acquisition memory options also differ: the standard memory and Option 1M/2M/3M upgrades apply across the family, while the 32-Megasample Option 4M is available on the TDS7404 only. The TDS7404 further differs in its front end—it uses a 50 Ω input and the TekConnect signal interconnect system in place of the 1 MΩ/50 Ω BNC inputs found on the TDS7054 and TDS7104. The comparison table that follows lists the per-model values.

Model

Bandwidth

Max Sample Rate

Rise Time

**TDS7404**

4 GHz

20 GS/s

100 ps

TDS7054

500 MHz

5 GS/s

800 ps

TDS7104

1 GHz

10 GS/s

400 ps

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

## Accessories Supplied

-   Accessory pouch
-   Front cover
-   Mouse (Logitech thumb wheel, USB interface)
-   Probe Calibration and Deskew Fixture (067-0405-00)
-   Quick Reference (020-2335-00)
-   User Reference (071-0700-00)
-   GPIB Programmer's Reference
-   TDS 7000 Series Product Software CD-ROM
-   TDS 7000 Series operating system restoration CD-ROM
-   Performance verification procedure PDF file
-   NIST, MIL-STD-45662A and ISO9000 Calibration Certificate
-   Power Cord
-   (4) TekConnect to SMA adapters (TCA-SMA)

## Product Core & Specifications

Specification

Value

Vertical System

Input Channels

4

Analog Bandwidth (–3 dB)

4 GHz

Calculated Rise Time (10 mV/div – 1 V/div)

100 ps

Hardware Bandwidth Limits

250 MHz or 20 MHz

Input Coupling

DC, Gnd

Input Impedance

50 Ω ± 2.5%

Input Sensitivity, 50 Ω

2 mV/div to 1 V/div

Vertical Resolution

8-bits (> 11-bits w/averaging)

Max Input Voltage, 50 Ω

Determined by TekConnect accessory

DC Gain Accuracy

1.00%

Offset Range (2 mV – 50 mV/div)

± 0.5 V

Offset Range (50.5 mV – 99.5 mV)

± 0.25 V

Offset Range (100 mV – 500 mV)

± 5 V

Offset Range (505 mV – 1 V/div)

± 2.5 V

Channel to Channel Isolation (any two channels at equal vertical scale)

≥100:1 at 4 GHz

DC Measurement Accuracy (average > 16 waveforms)

± ((1.0% \* |Reading – Net Offset|) + Offset Accuracy + (0.06 div \* V/div)); Net Offset = Offset – (Position \* Volts/div)

Delta-DC Measurement Accuracy (average > 16 waveforms)

± ((1.0% \* |Reading|) + (0.1 div \* V/div) + 0.3 mV)

Timebase System

Timebase Range

50 ps – 10 s/div

Timebase Delay Time Range

16 ns to 250 s

Channel to Channel Deskew Range

± 25 ns

Time Interval Accuracy

± (0.15/sample rate) + (10 ppm \* reading)

Trigger Jitter (RMS)

7 psRMS

Long Term Sample Rate and Delay Time Accuracy

± 10 ppm over ≥1 ms interval

Acquisition System

Real-time Sample Rate, 1 channel (max)

20 GS/s

Real-time Sample Rate, 2 channels (max)

10 GS/s

Real-time Sample Rate, 3-4 channels (max)

5 GS/s

Equivalent time sample rate (max)

250 GS/s

Max record length per channel, standard memory

400 k (1 ch), 200 k (2 ch), 100 k (4 ch)

Max record length per channel, Memory Opt. 1M

2 M (1 ch), 1 M (2 ch), 500 k (4 ch)

Max record length per channel, Memory Opt. 2M

8 M (1 ch), 4 M (2 ch), 2 M (4 ch)

Max record length per channel, Memory Opt. 3M

16 M (1 ch), 8 M (2 ch), 4 M (4 ch)

Max record length per channel, Memory Opt. 4M

32 M (1 ch), 16 M (2 ch), 8 M (4 ch)

Maximum Duration at Highest Real-time Resolution (1 ch)

Time Resolution (single-shot)

50 ps (20 GS/s)

Max Duration with Standard Memory

20 µs

Max Duration with Opt. 1M

100 µs

Max Duration with Opt. 2M

400 µs

Max Duration with Opt. 3M

800 µs

Max Duration with Opt. 4M

1.6 ms

Trigger System

Sensitivity, Internal DC Coupled

0.35 div DC to 50 MHz increasing to 1 div at 3 GHz

Sensitivity, External (Auxiliary Input)

250 mV from DC to 50 MHz increasing to 350 mV at 500 MHz

Main Trigger Modes

Auto, Normal and Single

Trigger Sequences

Main, Delayed by Time, Delayed by Events

Trigger Level Range, Internal

± 12 divisions from center of screen

Trigger Level Range, External (Auxiliary Input)

± 8 V

Trigger Level Range, Line

fixed at 0 V

Trigger Coupling

DC, AC (attenuate < 60 Hz), HF Rej (attenuate > 30 kHz), LF Rej (attenuates < 80 kHz), Noise Reject (reduce sensitivity)

Trigger Holdoff Range

250 ns minimum to 12 seconds maximum

Acquisition Modes

Maximum FastAcq Waveform Capture Rate

\> 400,000 wfms/sec

Minimum Peak Detect Pulse Width

400 ps

Averaging

From 2 to 10,000 waveforms included in average

Envelope

From 2 to 2x10⁹ waveforms included in min-max envelope

FastFrame Acquisition

Acquisition memory divided into segments; maximum trigger rate 150,000 waveforms per second

> **Important:** At the time of this datasheet, the TDS7404 4 GHz model was not yet available for ordering ("Ordering information coming soon").

> **Important:** Passive probes are included only with the TDS7054 (four P6139A 500 MHz 10x probes). The TDS7104 ships without probes, and the TDS7404 ships with four TekConnect-to-SMA (TCA-SMA) adapters only — appropriate probes for the TDS7104 and TDS7404 must be ordered separately (see Probe Options / Recommended Accessories).

> **Important:** A USB keyboard is not included in the standard accessories; order separately (Tektronix 119-6297-00).

> **Important:** Maximum Input Voltage, 1 MΩ: ± 150 V CAT I, derate at 20 dB/decade to 9 VRMS above 200 kHz (TDS7054/TDS7104). On the TDS7404, the 50 Ω input maximum voltage is determined by the TekConnect accessory used.

## 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.**

## Details

- **Price:** 0.0 USD - 350.0 USD
- **Vendor:** Tektronix
- **Type:** Dig Oscilloscope
- **Tags:** Dig Oscilloscope, Digital, Inc., Manufacturers, Model 7404, Oscilloscopes, Pre-Owned, product_manual_group_1, Product_used, TDS7404, Tektronix

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| None | 0.00 USD | In stock |
| NIST Traceable | 210.00 USD | In stock |
| NIST Traceable with Full Data | 280.00 USD | In stock |
| ISO IEC 17025 Accredited | 350.00 USD | In stock |

## Images

- Tektronix TDS7404 4 GHz Digital Phosphor Oscilloscope (Pre-Owned)

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> Source: [ValueTronics](https://valuetronics.com/products/tds7404-tektronix-digital-oscilloscope-used)
> Updated: 2026-06-03