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

ParameterValue
DisplayColor display

Physical

ParameterValue
Power Supply90 to 250 V RMS, 45 to 440 Hz, ≤300 W

Vertical System

ParameterValue
Number of Channels4
Analog BandwidthDC to 500 MHz
Calculated Rise Time700 ps
Input Impedance1 MΩ or 50 Ω
Input ConnectorsBNC female
Vertical Sensitivity Range1 mV/div to 10 V/div
Vertical Resolution8 bits
Input CouplingAC, 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

ParameterValue
Maximum Real-Time Sample Rate2 GS/s (on 1 to 4 channels)
Record Length (Standard)2K points/channel
Time/Division Range500 ps/div to 5 s/div
Time Base Accuracy±25 ppm

Display System

ParameterValue
Display Size7 inch
Display Resolution640 x 480 pixels

Interfaces and I/O

ParameterValue
Remote Control InterfaceGPIB
External Video OutputVGA out

Triggering

ParameterValue
Trigger ModesAuto, Normal, Single Sequence
Trigger TypesEdge, Pulse (Glitch, Runt, Width), Logic

Measurements & Analysis

ParameterValue
Automatic Measurements25 parametric measurements
Math FunctionsAdd, Subtract, Multiply, Invert (FFT, Integrate, and Differentiate available with Option 2F)

Storage

ParameterValue
Removable Storage3.5-inch 1.44 MB DOS-compatible floppy disk drive
Reference Waveforms4 (Ref 1 to Ref 4)
Saved Setups10 front-panel setups

Technology

Digital Storage Oscilloscope (DSO)

Applications

General Purpose Electronics Test & Measurement