SpecAtlasHub

TDS684A

Tektronix*misc

The Tektronix TDS684A is a high-performance 1 GHz, 4-channel digital real-time oscilloscope designed for high-speed digital design and analysis. Featuring a real-time sample rate of 5 GS/s simultaneously across all four channels, it offers precise signal acquisition, advanced DSP-based waveform math, and a NuColor liquid crystal shutter color display. It is equipped with GPIB, RS-232, and Centronics interfaces for seamless automation and documentation.

Signal AnalysisSignal IntegrityTransient Analysis

Specifications

General

ParameterValue
InterfacesGPIB, RS-232, Centronics Parallel, VGA
Display7-inch Color CRT (NuColor liquid crystal shutter display)

Physical

ParameterValue
Power Supply90 to 250 V RMS, 45 to 440 Hz, max 350 W
Operating Temperature4 to +50 °C
Dimensions (W×H×D)448 mm × 193 mm × 547 mm

Vertical System

ParameterValue
Analog Bandwidth (-3 dB)1 GHz
Number of Input Channels4
Vertical Resolution8 bits (>11-bits with averaging)
Calculated Rise Time (10% to 90%)350 ps
Input Impedance50 Ω
Input CouplingDC, GND
Maximum Input Voltage5 V RMS
Bandwidth Limit Filters20 MHz and 250 MHz
Vertical Sensitivity Range1 mV/div to 10 V/div
DC Gain Accuracy±1.5%
Offset Range±1 V (1 mV/div to 99.5 mV/div), ±10 V (100 mV/div to 10 V/div)
Vertical Position Range±5 divisions
Channel-to-Channel Deskew Range±8 ns
Channel Isolation≥ 100:1 at 100 MHz, ≥ 30:1 at 1 GHz

Acquisition System

ParameterValue
Maximum Real-Time Sample Rate5 GS/s on all channels simultaneously
Maximum Record Length15,000 pts per channel
Maximum Waveform Capture RateUp to 100,000 wfms/s (InstaVu mode)
Acquisition ModesSample, Envelope, Average, Single Sequence

Horizontal System

ParameterValue
Timebase Range200 ps/div to 10 s/div

Trigger System

ParameterValue
Trigger ModesAuto, Normal, Single
Trigger SourcesCH1, CH2, CH3, CH4, Aux, AC Line

Waveform Measurements and Analysis Limiting

ParameterValue
Waveform Math OperatorsAdvanced Waveform DSP/Math

Physical Characteristics

ParameterValue
Disk Drive3.5-inch Floppy Drive

Connectivity and Interfaces

ParameterValue
GPIB InterfaceIEEE-488.2 Port
External Video OutputVGA I/O Port
Printer InterfaceCentronics Printer Port
Serial InterfaceRS-232 Port

Display

ParameterValue
Display Type7-inch Color Liquid Crystal Shutter CRT
Display GraticulesFull, Grid, Crosshair, Frame

Environmental

ParameterValue
Operating AltitudeUp to 4,572 m (15,000 ft)
Non-Operating AltitudeUp to 12,192 m (40,000 ft)
Operating Humidity20% to 80% RH (non-condensing) at up to +32 °C; decreases to 30% RH at +40 °C
Operating Vibration0.31 g RMS, 5 Hz to 500 Hz, 10 min per axis
Non-Operating Vibration2.46 g RMS, 5 Hz to 500 Hz, 10 min per axis
Non-Operating Shock50 g, 11 ms, half-sine

Accessories

ParameterValue
Standard Probes ShippedFour P6243 active probes (1 GHz bandwidth, 1 pF, 1 MΩ)

Triggering

ParameterValue
Trigger TypesEdge, Logic (Pattern, State, Setup/Hold), Pulse (Glitch, Width, Runt, Slew Rate, Timeout), Video (with Option 05)

Available Options

ParameterValue
Option 05Video Trigger (NTSC, PAL, SECAM, and Custom formats)
Option 2FAdvanced DSP Math (FFT, Integration, Differentiation)
Option 13Adds RS-232 and Centronics (Parallel) interfaces

Storage & Connectivity

ParameterValue
Waveform Storage FormatsTIFF, BMP, PCX, EPS, Mathcad, MATLAB, Spreadsheet
Non-volatile Setup Storage10 front-panel setups
Non-volatile Waveform Storage4 reference waveforms (Ref1 to Ref4)

Control & Software

ParameterValue
Programmatic ControlFully programmable via GPIB (IEEE-488.2)

Technology

Digital Real-Time Oscilloscope

Applications

High-speed digital design, characterization, and debugging

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