The Tektronix TDS784C is a high-performance 1 GHz, 4-channel digital oscilloscope featuring InstaVu acquisition technology, designed for advanced electronic design, debugging, and telecom/datacomm analysis.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (IEEE-488.2) standard; RS-232 and Centronics parallel available via Option 13 |
| Display | 7-inch NuColor liquid-crystal shutter color display, 640 × 480 resolution |
| Warm-up Time | 20 minutes |
Vertical System
| Parameter | Value |
|---|---|
| Number of Channels | 4 |
| Analog Bandwidth | 1 GHz |
| Calculated Rise Time | 350 ps |
| Vertical Resolution | 8-bit (over 11-bits with averaging, over 13-bits with Hi-res) |
| Input Sensitivity Range (1 MOhm) | 1 mV/div to 10 V/div |
| Input Sensitivity Range (50 Ohm) | 1 mV/div to 1 V/div |
| Input Impedance | 1 MOhm in parallel with 10 pF, or 50 Ohm (selectable) |
| Input Coupling | AC, DC, GND |
| Hardware Bandwidth Limits | 20 MHz and 250 MHz |
| Maximum Input Voltage (1 MOhm) | 400 V (DC + peak AC) |
| Maximum Input Voltage (50 Ohm) | 5 V RMS (with peaks less than ±30 V) |
| Channel-to-Channel Isolation | >= 100:1 at 100 MHz, >= 30:1 at 1 GHz |
| Vertical Position Range | ±5 divisions |
Acquisition System
| Parameter | Value |
|---|---|
| Max Real-Time Sample Rate (1 Channel) | 4 GS/s |
| Max Real-Time Sample Rate (2 Channels) | 2 GS/s |
| Max Real-Time Sample Rate (4 Channels) | 1 GS/s |
| Maximum Record Length | Up to 8,000,000 points (with Option 2M) |
| Waveform Capture Rate | Up to 400,000 waveforms/sec (InstaVu mode) |
| Acquisition Modes | Sample, Envelope, Average, Peak Detect, High Resolution (Hi-Res) |
Trigger System
| Parameter | Value |
|---|---|
| Trigger Modes | Auto, Normal, Single |
| Trigger Coupling | DC, AC, Low Frequency Reject (LF Rej), High Frequency Reject (HF Rej), Noise Reject |
| Trigger Holdoff Range | 250 ns to 12 s |
| Edge Triggering | Positive or negative slope on any channel or auxiliary input |
| Runt Triggering | Triggers on a pulse that crosses one threshold but fails to cross a second before crossing the first again |
| Setup/Hold Triggering | Triggers on violations of setup or hold times |
| Pattern/State Logic Triggering | Triggers on AND, OR, NAND, NOR logic combinations of channels |
Waveform Measurements & Analysis
| Parameter | Value |
|---|---|
| Measurement Statistics | Displays mean, minimum, maximum, and standard deviation |
| Cursor Types | Vertical bar, horizontal bar, paired |
| Waveform Math Operations | Addition, subtraction, multiplication, division |
| FFT Window Types | Rectangular, Hamming, Hanning, Blackman-Harris |
| Waveform Histograms | Vertical and horizontal histograms with statistical measurements |
| Limit Testing | Compares acquired waveforms to a predefined template with pass/fail actions |
Display & User Interface
| Parameter | Value |
|---|---|
| Display Formats | YT, XY |
Connectivity & I/O
| Parameter | Value |
|---|---|
| VGA Output | Rear-panel 15-pin D-sub connector for external display |
| Probe Compensator Output | Front panel terminals (approx 0.5 V into > 1 MOhm, 1 kHz) |
Storage & File System
| Parameter | Value |
|---|---|
| Removable Media Type | 3.5-inch 1.44 MB floppy disk drive |
| Internal Setup Storage Capacity | 10 front-panel setups |
| Internal Waveform Storage Capacity | 4 active reference waveforms |
Environmental & Reliability
| Parameter | Value |
|---|---|
| Cooling Method | Forced air cooling |
Factory Options
| Parameter | Value |
|---|---|
| Option HD | Adds internal hard disk drive |
| Option 13 | Adds RS-232 and Centronics parallel ports |
| Option 2C | Adds Communication Signal Analysis (mask testing) |
Triggering
| Parameter | Value |
|---|---|
| Trigger Level Range (Internal) | ±12 divisions from center of screen |
| Delay by Events Range | 1 to 9,999,999 events |
| Delay by Time Range | 16 ns to 250 s |
Options
| Parameter | Value |
|---|---|
| Option 1R | Chassis conversion for 19-inch rack mounting |
| Option 2F | Advanced DSP Math (adds integration, differentiation, and FFT) |
| Option 05 | Video Trigger (adds NTSC, PAL, SECAM, and custom/FlexFormat video triggering) |
Inputs & Outputs
| Parameter | Value |
|---|---|
| Probe Interface | TekProbe Level 2 BNC interface (provides power and sensing for compatible active, differential, and optical probes) |
Technology
Digital Real-Time Oscilloscope
Applications
Electronic design, debugging, communications signal analysis, and scientific research