Tektronix TDS 460A, TDS 430A, TDS 420A Datasheet

The TDS 460A 400 MHz, four channel, Personal Lab Scope.

TDS 400A Personal Lab
Oscilloscopes

For professionals who
demand high precision and
fidelity from their measure­ments, the TDS 400A Per­sonal Lab Scopes combine
excellent performance and
broad feature set, all at
affordable prices. A choice of
2 and 4 channel models rang­ing from 200 MHz to 400
MHz with a 100MS/s sample
rate on all channels makes
the TDS 400A Series a wor­thy fit for a variety of
demanding applications.

The highly featured, portable,
and easy to use TDS420A,
430A and 460A personal lab
scopes are ideal for simple to
complex applications,
including electro-mechanical
research and analysis, power

electronics/power supply
design, bio-physical research
and analysis, digital and
analog design. With its stan­dard video trigger capability,
the scopes are ideal instru­ments for measuring video
signals including NTSC, PAL
and SECAM.

The TDS 400A Series uses the
renowned TDS Graphical
User Interface which offers
intuitive icon-based menus
along with help text, making
scope operation extremely
simple. Knobs and buttons
allow easy selection of com­monly used scope functions.
The standard floppy disk
drive makes the saving of
screen images or data to a disk
simple. The disk can then be
inserted into your PC for
importing to desktop publish­ing or spreadsheet programs.

Copyright © 1998 Tektronix, Inc. All rights reserved.

TDS 430A/TDS 420A/TDS 460A

Be Confident You’re Seeing Actual
Signals with up to 400 MHz
Bandwidth and ±1.5% Accuracy

Capture Transient Events to the Full
Scope Bandwidth with its 100 MS/s
Sample Rate

2 and 4 Channels
Record Lengths to 120K (option XL),

30K Standard
Floppy Disk Storage
Speed up your Circuit Analysis with

25 built-in Automatic Measurements
and optional extended Waveform
Math/FFT

Roll Mode Allows You to See
Acquired Data Points Without
Waiting for the Acquisition of the
Complete Waveform

Use the Video Trigger Mode to See
NTSC, PAL, SECAM Signals or your
Own Custom Video Signals

Capture those glitches with the 10 ns
Peak Detect Mode

Differential Measurements

ADA400A Analog Differential
Amplifier (10 µV/div Sensitivity)

P5200/P5205/P5210 High Voltage
Differential Probes (up to 5600 V) for
Floating Measurements

Applications

Biophysical/Biomedical Research
Electrophysical and

Electromechanical System Design
Audio System Measurement and

Analysis
Manufacturing Test and Quality

Control
Power Supply and Power-related

Design
Product Service and Maintenance

TDS 430A/TDS 460A/TDS 420A
Personal Lab Oscilloscopes

SIGNAL AQUISITION SYSTEM

Bandwidth – 200 MHz (TDS 420A),
400 MHz (TDS 430A, TDS 460A).

Channels – 4 (2 on TDS 430A).
Sample Rate – 100 MS/s on all channels.
Sensitivity – 1 mV to 10 V/div

(with calibrated fine adjust).

Position Range – ±5 Divisions.
Offset Range – ±1 V from 1 to 99.5 ;

±10 V from 100 mV to 995 ; ±100 V from
1 to 10 V/div.

DC Gain Accuracy – ±1.5%.
Vertical Resolution – 8-Bits (256 levels

over 10.24 vertical divisions).
Analog Bandwidth Selections – 20 MHz,

100 MHz, and full.

Input Coupling – AC, DC or GND.
Input Impedance Selections – 1 MΩ in

parallel with 15 pF, or 50 Ω (AC and DC
coupling).

Maximum Input Voltage – 300 V CAT II
±400 Vpeak. Derate at 20 dB/decade above
1 MHz. 1 MΩ or GND coupled.

Channel Isolation – >100:1 at 100 MHz for
any two channels.

AC Coupled Low Frequency Limit – ≤10 Hz
when AC 1 MΩ coupled. ≤200 kHz when AC
50 Ω coupled.

ACQUISITION MODES

Peak Detect – High frequency and random
glitch capture. Captures glitches of 10 ns
using acquisition hardware at all real-time
sampling rates.

Sample – Sample data only.
Envelope – Max/min values acquired over

one or more acquisitions, selectable from
2 to 2000, infinite.

Average – Waveform averages selectable
from 2 to 10,000.

Hi-Res – Vertical resolution improvement
and noise reduction on low-frequency sig­nals, e.g. 12-Bits at 10 ms/div and slower.
Enhanced vertical resolution (>12-Bits) for
noise reduction, on low frequency signals.
Make precise low-level signal measure­ments (up to 5 µV) with differential amplifier
(ADA400A).

TIME BASE SYSTEM

Time Bases – Main, Delayed.
Time/Division Range – 1 ns to 20 s/div.
Time Base Accuracy – 0.015% over any

interval ≥1 ms.

Record Length (real time and equivalent
time) – Sample points per channel: 500 to

30,000. Opt. XL offers 120,000 points.
Pre-Trigger Position – Selectable from

0 to 100% of record.

TRIGGERING SYSTEM

Triggers – Main, Delayed.
Main Trigger Modes – Auto, Normal, Single

Sequence.
Delayed Trigger – Delayed by time or

events.

Time Delay Range – 0 ns to 20 s.
Events Delay Range – 2 to 10,000,000

events.
External Rear Input – >1.5 KΩ; Max input

voltage is ±6 V (DC + AC peak).
Video Trigger Types – NTSC, PAL, SECAM,

and Custom; TV Field, field 2 or both,
Any line within a field.
Line Rates –10 kHz to 64 kHz, interlaced,
non-interlaced, composite.

Video Trigger Sensitivity –

0.6 divisions of composite SYNC will
achieve a stable display.

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.

Update Rate – 200 ea. 500 point wave­forms per sec with infinite persistence
mode selected.

Graticules – Full, grid, cross hair, frame.
Format – YT and XY.
VGA Out – Drives VGA display monitors.

ZOOM

The zoom feature allows waveforms to be
expanded, compressed and positioned in
both vertical and horizontal axes. Allows
precise comparison and study of fine wave­form detail without affecting ongoing acqui­sitions. When used with Hi-Res or Average

acquisition modes, Zoom provides an effec­tive vertical dynamic range of 1000 divi­sions or 100 screens.

Characteristics

page 2

Theoretically achievable resolution with TDS 400A Hi-Res Mode.