Tektronix TDS784A is a high‑performance 4‑channel digital storage oscilloscope designed for high‑speed analog and mixed‑signal debug. It provides 1 GHz bandwidth with deep triggering and standard math/FFT functions, and remote control via GPIB.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (IEEE‑488.2) |
| Display | CRT display |
Physical
| Parameter | Value |
|---|---|
| Operating Temperature | 0 to +50 °C |
Vertical System
| Parameter | Value |
|---|---|
| Number of Analog Channels | 4 |
| Analog Bandwidth (‑3 dB) | 1 GHz |
| Rise Time (calculated) | 350 ps (0.35/BW) |
| Input Coupling | AC, DC, GND |
| Input Impedance (selectable) | 1 MΩ or 50 Ω |
| Vertical Resolution (ADC) | 8 bits |
| Maximum Input Voltage | 150 Vrms (1 MΩ), 5 Vrms (50 Ω) |
| Bandwidth Limit Filters | 20 MHz (selectable limit) |
Horizontal System and Timebase
| Parameter | Value |
|---|---|
| Real‑Time Sample Rate (1 ch, interleaved) | up to 4 GS/s |
| Real‑Time Sample Rate (2 ch) | up to 2 GS/s |
| Real‑Time Sample Rate (4 ch) | up to 1 GS/s |
| Equivalent Time Sampling (ETS) | Supported for repetitive signals |
| Pre/Post Trigger Position | 0 to 100% adjustable |
Acquisition System
| Parameter | Value |
|---|---|
| Interpolation | sin(x)/x |
| Acquisition Modes | Sample, Peak Detect, Hi‑Res, Average, Envelope |
Trigger System
| Parameter | Value |
|---|---|
| Trigger Modes | Edge, Pulse Width, Video |
| Trigger Sources | CH1–CH4, External, AC Line |
| Trigger Coupling | AC, DC, LF reject, HF reject |
| External Trigger Input | Front‑panel BNC |
Measurements
| Parameter | Value |
|---|---|
| Automatic Measurements (Amplitude) | Vpp, Vmax, Vmin, Mean, RMS |
| Automatic Measurements (Time) | Frequency, Period, +Width, −Width, Duty Cycle, Phase, Rise/Fall Time |
| Measurement Statistics | Statistical readouts on selected measurements |
| Cursors | Time and Voltage cursors with ΔT/ΔV readout |
Math and FFT
| Parameter | Value |
|---|---|
| Standard Math Functions | Add, Subtract, Multiply, Divide |
| FFT Analysis | Spectrum magnitude with selectable windows |
| FFT Windows | Rectangular, Hanning, Hamming, Blackman‑Harris |
| Reference Waveforms | Store/recall reference traces |
Connectivity and I/O
| Parameter | Value |
|---|---|
| GPIB (IEEE‑488.2) | Rear‑panel interface for remote control |
| RS‑232C | Rear‑panel serial port |
| Parallel (Centronics) | Rear‑panel hardcopy/printing |
| Probe Interface | TekProbe interface on input channels for powered/ID probes |
Data Storage and File Formats
| Parameter | Value |
|---|---|
| Internal/Removable Storage | Internal setup memory; 3.5‑inch 1.44 MB floppy drive |
| Waveform/Hardcopy Formats | Tek binary waveform and ASCII data export; printer hardcopy via Centronics/GPIB |
| Setup Save/Recall | Save/recall instrument setups to NVRAM or floppy |
Remote Control and Software
| Parameter | Value |
|---|---|
| Programming Interface | SCPI over GPIB |
Calibration
| Parameter | Value |
|---|---|
| Self‑Calibration | Signal Path Compensation (SPC) routine |
Power Requirements
| Parameter | Value |
|---|---|
| Power Connector | IEC mains inlet |
Physical Characteristics
| Parameter | Value |
|---|---|
| Rackmount Capability | Optional rackmount kit available |