HP’S NEW TIME INTERVAL MEASUREMENT SOLUTION

The

HP 1726A

Time

[nterval

Oscilloscope

is a new

time

interval

measuring instrument.

Time

interval

counter

(

and

oscilloscope

technologies

have

been

synergistically

combined

in the 1726A to offer

performance,

 

convenience,

and

value unmatched

by alternative

instrumentation.

The contributions

of

the

Time

Interval

 

Oscilloscope

benefit

users

with

frequently

encountered

timing applications and/or precise timing

 

 

measurement

requirements.

 

 

 

 

 

 

 

 

 

 

 

 

The requirement for stringent timing measurements has resulted from advances in IC design, device characterization of custom integrated circuits (e.g., bipolar and MO5 processes), ECL circuits, and faster clock speeds in computers and other electronic systems. For example, characterizing a’process, verifying

system operation, or troubleshooting a new design all require highly accurate and repeatable measurements. The feature set of the 1726A provides advanced performance with simple setup and the front panel conveniences expected from Hewlett-Packard products,

“THE COMPLETE TIME INTERVAL SOLUTION”

Completing the time interval

$olution i$ the I-IF’ 10326A Time Interval Standard, a dual channel signal source. The 10326A’s waveform period accuracy (+/-5 picoseconds) and specified dual- channel timing relationships provide convenient signals with which to evaluate system performance and subsystem design. The 10326A is exceptionally easy to maintain, and its calibration procedure is completely traceable to the United States National Bureau of Standards and to the calibration facilities of other International

Standards Organization members.

FAST, CONFIDENT

MEASUREMENTS

Combining a CRT with a marker system makes the measured interval easy to identify. Matched wideband pre-amplifiers allow pulse parameters such as overshoot and ringing to be examined, and the overlap mode permits precise measurements to be made from specific points on any displayed waveform. This measurement system eliminates uncertainty concerning the exact interval being measured, and it obsoletes the technique of externally gating a time interval counter with an oscilloscope.

PRECISE MEASUREMENTS (+/-50 PICOSECONDS)

Time interval averaging, which is automatically controlled through

the Main Time/Div switch, allows the 1726A to make precise measurements on virtually any repetitive signal that can be displayed on an oscilloscope. A crystal-referenced time base combines with sophisticated triggering circuits to form the most accurate measurement

system available today-up to 10 picosecond resolution and 50 picosecond accuracy.

REPEATABILITY AND

CONVENIENCE

Complex time interval measurements are highly repeatable and easy to make with the 1726A’s triggered mode of operation. The triggered mode minimizes setup time, simplifies measurement procedures, and it allows highly repeatable measurements to be obtained

-.

independent of the operator’s skill level. The fast mode, which reduces the,number of averages taken by a factor of ten, minimizes measurement time in all operating modes. In production and record-keeping ap’plications, a standard HP-IB interface outputs time interval information.

TWO INSTRUMENTS IN ONE

The feature set of the 1726A Time Interval Oscilloscope provides the performance of two complete instruments. Not only is the 1726A the most advanced time interval measurement solution, but with its time interval module turned off, the

1726A offers all the capabilities of f,- a general purpose, 275 MHz oscilloscope.