Keithley Instruments
28775 Aurora Road
Cleveland, Ohio 44139
1-800-833-9200
tek.com/keithley
Introduction
The Model 3722 offers two independent banks of 1×48 two-pole multiplexers that are ideal for applications that
require a high channel count. The two banks can be automatically connected to the Series 3700A mainframe
backplane and optional DMM through the analog backplane connection relays. This connection allows the
mainframe to reconfigure the 3722 as a single 1×96 two-pole multiplexer or to enable card-to-card expansion for
even larger configurations. The latching electromechanical relays of this card can accommodate 300 V, 1 A
switched signal levels.
The 3722 uses two 104-pin D-sub connectors for signal connections. A solder style connector kit
(3722-MTC-1.5-KIT) and pre-assembled cable (3722-MTC-1.5/MM) are available for card connections. For more
information regarding available cards and accessories, refer to the Series 3700A System Switch/Multimeter and
Plug-in Cards datasheet, available at tek.com/keithley.
The 3722 card is shown in the following figure.
Item shipped may vary from model pictured here.
This document describes how to install the plug-in card and make connections to it. For information on scanning,
and on reading, writing, and controlling channels, refer to the Series 3700A System Switch/Multimeter Reference
Manual, available at tek.com/keithley.
077183500 October 2024
Model 3722 Dual 1x48 Multiplexer Card
Figure 1: Model 3722 Two-Pole Multiplexer Card
*P077183500*
Instructions
1
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