Datasheet

www.keithley.com
1.888.KEITHLEY
(U.S. only)
12
SWITCHING AND CONTROL
A GREATER MEASURE OF CONFIDENCE
3724
Dual 1×30 FET Multiplexer Card
60 differential channels, automatic CJC with 3724-ST accessory
The Model 3724 provides two independent banks of solid-state relays arranged as 1×30 two-pole
multiplexers that are ideal for high reliability, high speed multipoint measurement applications
including temperature. The two banks can automatically be connected to the Series 3700A main-
frame backplane and optional DMM through the analog backplane connection relays. This connec-
tion allows the mainframe to reconfigure the card to a single 1×60 two-pole multiplexer or to enable
card-to-card expansion for even larger configurations.
The solid-state FET relay technology supports fast switching times with scanning rates of greater
than 1250 channels/second and provides unlimited contact life. In addition, the Model 3724 supports
thermo couple temperature measurements when used with the Model 3724-ST (screw terminal) acces-
sory providing automatic cold junction compensation (CJC).
The Model 3724 uses two 78-pin male D-sub connectors for signal connections. For screw terminal
or automatic CJC, use the detachable Model 3724-ST accessory.
• 60 two-pole or 30 four-pole
solid-state channels
• Scanning speeds greater
than 1250 channels/second
(switch only)
• Optically isolated, solid-state
FET relays provide unlimited
contact life
• 200V, 0.1A switch/carry signal
capacity; 800mW
• Automatic CJC for temperature
measurements when used with
3724-ST accessory
• Analog backplane connection
relays provide easy bank and
card interconnections
• Screw terminal connections
provided with removable
3724-ST accessory
• Ideal for maintenance-free,
long-life thermocouple
temperature measurements
Ordering Information
3724 Dual 1×30 FET
Multiplexer Card
ACCESSORIES AVAILABLE
3720-MTC-1.5 78-pin female-to-male D-sub Cable Assembly,
1.5m (4.9 ft)
3720-MTC-3 78-pin female-to-male D-sub Cable Assembly,
3m (9.8 ft)
3724-ST Screw Terminal Block (required for auto CJC
thermocouple measurements)
3791-CIT Contact Insertion and Extraction Tool
3791-KIT78-R 78-pin female D-sub Connector Kit (contains
2 female D-sub connectors and 156 solder-cup
contacts)
SERVICES AVAILABLE
3724-3Y-EW-STD 1-year factory warranty extended to 3 years
from date of shipment
3724-5Y-EW-STD 1-year factory warranty extended to 5 years
from date of shipment
C/3724-3Y-DATA 3 (Z540-1 compliant) calibrations within 3 years
of purchase*
*Not available in all countries
Dual 1×30 FET multiplexer card Dual 1×30 FET multiplexer card