Tektronix 4500-CQIV-* Users Guide

4500-CQIV-* Cable Set

Keithley Instruments, Inc.

28775 Aurora Road
Cleveland, Ohio 44139
[phone]
www.keithley.com

User’s Guide

Introduction

This document contains information on the 4500-CQIV-* cable set. This cable set is used to make signal connections to a
451x-QIVC card for LIV test and measurements of a DUT (device under test).

Connection precautions

WARNING Read all safety precautions listed at the beginning of the 4500-MTS Mainframe

manual and included with the CD-ROM. The following safety practices must be
used to protect operators and other users of this product from potential exposure
to electrical hazards:

• Operators must be protected from electrical hazards at all times.

• The interlock is required for safe operation. The test fixtures must ensure that
the interlock circuit is disabled (source outputs inhibited) so that an operator is
not exposed to any harmful conditions.

• Maximum isolation from earth ground is ±20V. Exceeding this value may result
in a shock hazard.

• When making connections, do not leave any exposed connections. Be sure that
all external circuits are properly insulated.

Handling precautions

To avoid possible contamination that could degrade measurement performance, observe these precautions:

• Operate the card and cable set only in a clean environment.

• Do not touch cable or card connector pins.

• If the connectors become contaminated, they can be cleaned with clean methanol and then blown dry with
dry nitrogen gas. Allow the cable connectors to dry for several hours at 50°C before use.

Description

Cable configuration

The overall configuration of the 4500-CQIV-* cable set is shown in Figure 1. The cable includes a 40-pin connector that
mates with the 451x-QIVC card signal connector on one end. It separates into a 15 pin D-Sub connector for each of the
four channels, A to D. Each 15-pin connector provides voltage bias, current source, and voltage measure connections to
the DUT.

PA-871 Rev. B / 12-03

Figure 1
4500-CQIV-* cable configuration

451x-QIVC card
signal connector

DUT signal

connectors for

channels A-D

Cable lengths

As summarized in Table 1 below, the 4500-CQIV-* cable set is available in four different lengths. The 2 meter length
cable (4500-CQIV-2) is supplied with the 451x-QIVC card.

Table 1
4500-CQIV-* cable lengths

Model

4500-CQIV-0.5 0.5

4500-CQIV-1 1

4500-CQIV-2* 2

4500-CQIV-3 3

* Cable supplied with 451x-QIVC card
** 0.5 to 2 meter cables are recommended for

use with the 4511-QIVC. 3 meter cables
are recommended for use with the 4510-QIVC.

Length

(meters)**

2