TDS644

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Tektronix TDS644
500 MHz, 2 GS/s, 4-Ch digital scope
Tektronix TDS644A

Produced from 1994 to (?)

Manuals

TDS644A

TDS644B

Schematics

Common

(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix TDS644A 4 Channel Digitizing Oscilloscope has a real-time bandwidth of 500 MHz and a sample rate of 2 GS/s, with a record length of up to 2,000 points per channel.
The Tektronix TDS644B has a sample rate of 2.5 GS/s, with a record length of up to 15,000 points per channel.

Features include Waveform Math and Advanced Waveform DSP, Color VGA Display, 3.5" DOS Format Floppy Drive, RS-232 interface, Centronics, GPIB and VGA Connector. Inputs have Tekprobe BNC connectors.

Opt.05 adds video trigger for NTSC, PAL, HDTV.

Key Specifications

Bandwidth 500 MHz
Sampling rate 2 GS/s (TDS644A), 2.5 GS/s (TDS644B) on all 4 channels
Time base 500 ps/Div to 5 s/Div
Deflection 1 mV/Div to 10 V/Div
Resolution 8 bits
Record length 500 to 2000 points (TDS644A), 15,000 points (TDS644B)
Input impedance 1 MΩ // 10 pF, or 50 Ω
Interface GPIB standard
Options
  • Centronics interface (standard)
  • RS-232 interface (standard)
  • FFT, integration and differentiation (standard)

Software


Firmware


Options

  • 05 - Video Trigger - Oscilloscope comes with tools that allow investigation of a range of NTSC, PAL, SECAM, and high definition TV signals.
  • 1M - 4M acquisition length - Extends standard acquisition length from 50,000 points per channel to 130,000 samples on three or four channels, 250,000 samples on two channels, and 500,000 samples on one channel.
  • 13 - RS-232C and Centronics hardcopy interfaces - Add RS-232-C and Centronics interface ports.
  • 1F - Floppy disk drive - Add 3.5 inch, 1.44 MByte floppy disc drive.
  • 2F - Advanced DSP math - Add advanced DSP math features such as FFT, integration, and differentiation.

Optional Accessories

  • 1K - Add K420 scope cart
  • 1R - Rackmount kit
  • 2D - Delete standard 2 P6205 probes
  • 24 - Add 4 each P6139A passive probes
  • 25 - (TDS644A) Add 4 each P6563AS 20X SMD probes
  • 2P - Tektronix Phaser 200e Thermal Wax Transfer Color Printer
  • 4D - Delete standard 4 P6205 probes
  • 95 - TDS644A Calibration data report
  • 96 - TDS644A Calibration Certificate
  • D1 - TDS644B Calibration Data Report

TDS644A Included Accessories

  • 4x P6205 FET Probes
  • 070-8711-02 - Reference Manual
  • 070-8711-01 - User Manual
  • 200-3696-01 - Front cover
  • 161-0230-01 - US power cord

TDS644B Included Accessories

  • 4x P6243 FET Probes
  • 070-9382-00 - Quick Reference Guide
  • 063-2773-00 - Programmers Manual in MS-Help format on floppy disk
  • 070-6869-00 - User Manual
  • 070-9874-02 - Technical Reference Manual
  • 200-3696-01 - Front cover
  • 161-0230-01 - US power cord
  • 016-1268-00 - Accessory Pouch

Recommended Accessories

  • 012-0991-01 - 1m GPIB cable
  • 012-0991-00 - 2m GPIB cable
  • 012-1298-00 - RS-232 cable
  • 012-1250-00 - Centronics cable
  • 016-0909-01 - Soft-sided carrying case
  • 016-01135-00 - Transit case
  • K420 - Scope cart

Links

Pictures