Tektronix TDS820

This system has the following features:

SIGNAL Acquisition System TDS 820
Number of Channels: Channels 2
Rise time: 58.3 ps
Bandwidth (0.35/rise time): 6 GHz
Max operating input voltage: 2 Vp-p; ±3 V DC
Sensitivity: 2 m V/div to 200 mV/div
Random noise 1.2 mV max, 600 µV typical
External Trigger Bandwidth: 2 GHz
DC Gain Accuracy - ±0.7% after user-initiated automatic vertical calibration
Vertical Resolution - 14-Bits (Approx. 16,384 levels over 10.24 vertical divisions)
Input Impedance - 50 Ohm
Includes floppy, Centronics, RS-232 and GPIB
Intuitive user interface and multiprocessor DSP design

Acquisition Modes
Normal - One sample acquired with each trigger event
Envelope - Max/min values acquired over one or more acquisitions
Average - Waveform averages selectable from 2 to 10,000

Time Base System
Time Bases - Main, Delayed
Time/Division Range - 20 ps/division to 5 ms/division in 1-2-5 steps or settable from the numeric keypad in 5 ps steps
Channel Deskew - Up to 100 ns (each channel)
Record Length - 500, 1000, 2000, and 5000, and 15,000 samples per channel
Pre Trigger View Time - 1.5 ns

Triggering System
Trigger Sources - External input, internal rate generator, CH 1, CH 2
External Trigger Sensitivity - 40 mVp-p from DC to 200 MHz, increasing linearly to 200 mVp-p at 2 GHz
External Trigger Minimum Pulse Width - 0.25 ns
Internal Trigger Sensitivity - 80 mVp-p from DC to 200 MHz, increasing linearly to 400 mVp-p at 1 GHz
Trigger Delay Jitter - 3 ps RMS + 30 ppm of time base delay
Holdoff Range - 15 µs to 2 s

Display
Waveform Style - Dots or vectors. Infinite and variable persistence from 250 ms to 10 s
Gray Scaling - With variable persistence selected, waveform points gradually decay through 16 levels of intensity, providing "z-axis" information about rapidly changing waveforms
Graticules - Full, grid, cross hair, frame
Format - YT and XY
CRT Type - 7 in. diagonal, magnetic deflection. Horizontal raster-scan. P4 White phosphor
CRT Resolution - 640 horizontal by 480 vertical displayed pixels

Continuous update of up to four measurements on any combination of waveforms. Snapshot mode shows all measurements on the selected waveforms.
Thresholds - Settable in percentage or voltage
Cursor Measurements - Absolute, Delta; Volts, Time, Frequency
Cursor Types - Horizontal bars (volts); Vertical bars (time); Paired (volts and time)

Waveform Processing
Waveform Functions - Interpolate-selectable sin(x)/x or linear, Average, FFT, integrate, and differentiate
Arithmetic Operators - Add, Subtract, Multiply, Invert
Autosetup - Single button, automatic setup on selected input signal for vertical, horizontal and trigger systems

Computer Interface
GPIB (IEEE -488.2) Programmability - Full talk/listen modes. Control of all modes, settings, and measurements

Hard Copy
Formats - HP ThinkJet, Epson, Postscript, Interleaf, DeskJet, LaserJet, EPS Monochrome, EPS Color, TIFF, PCX, BMP, HPGL

Storage
Waveforms - Up to 15 K points
Setups - 10 front-panel setups