The Tektronix TDS644A is a 500 MHz, 4-channel digital storage oscilloscope with a maximum real-time sample rate of 2 GS/s on all channels simultaneously. It features a color display and comprehensive interface options including GPIB, RS-232, and Centronics.
Specifications
General
| Parameter | Value |
|---|---|
| Display | Color display |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 90 to 250 V RMS, 45 to 440 Hz, ≤300 W |
Vertical System
| Parameter | Value |
|---|---|
| Number of Channels | 4 |
| Analog Bandwidth | DC to 500 MHz |
| Calculated Rise Time | 700 ps |
| Input Impedance | 1 MΩ or 50 Ω |
| Input Connectors | BNC female |
| Vertical Sensitivity Range | 1 mV/div to 10 V/div |
| Vertical Resolution | 8 bits |
| Input Coupling | AC, DC, GND |
| Maximum Input Voltage (1 MΩ) | 400 V (DC + peak AC) |
| Maximum Input Voltage (50 Ω) | 5 V RMS |
| Vertical DC Gain Accuracy | ±1.5% |
Horizontal System
| Parameter | Value |
|---|---|
| Maximum Real-Time Sample Rate | 2 GS/s (on 1 to 4 channels) |
| Record Length (Standard) | 2K points/channel |
| Time/Division Range | 500 ps/div to 5 s/div |
| Time Base Accuracy | ±25 ppm |
Display System
| Parameter | Value |
|---|---|
| Display Size | 7 inch |
| Display Resolution | 640 x 480 pixels |
Interfaces and I/O
| Parameter | Value |
|---|---|
| Remote Control Interface | GPIB |
| External Video Output | VGA out |
Triggering
| Parameter | Value |
|---|---|
| Trigger Modes | Auto, Normal, Single Sequence |
| Trigger Types | Edge, Pulse (Glitch, Runt, Width), Logic |
Measurements & Analysis
| Parameter | Value |
|---|---|
| Automatic Measurements | 25 parametric measurements |
| Math Functions | Add, Subtract, Multiply, Invert (FFT, Integrate, and Differentiate available with Option 2F) |
Storage
| Parameter | Value |
|---|---|
| Removable Storage | 3.5-inch 1.44 MB DOS-compatible floppy disk drive |
| Reference Waveforms | 4 (Ref 1 to Ref 4) |
| Saved Setups | 10 front-panel setups |
Technology
Digital Storage Oscilloscope (DSO)
Applications
General Purpose Electronics Test & Measurement