Datasheet

www.keithley.com
1.888.KEITHLEY
(U.S. only)
2
SWITCHING AND CONTROL
A GREATER MEASURE OF CONFIDENCE
Specifications for Plug-In Cards
Additional Series 3700A cards are currently in development. For a current list of cards and specifications,
visit www.keithley.com.
3720 3721 3722 3723 3724 3730 3731 3732 3740 3750
Page
4 6 8
10 12 15 17 19 23 25
No. of Channels
60 (Dual 1×30) 40 (dual 1×20) 96 (dual 1×48)
60 (dual 1×30) or
120 single pole
(dual 1×60)
60 (dual 1×30) 6×16 6×16
448 crosspoints
(Quad 4×28)
32
40 digital I/O, 4
counter/totalizers,
and 2 isolated analog
outputs
Card Config.
Multiplexer Multiplexer Multiplexer
Multiplexer Multiplexer Matrix Matrix Matrix Independent Independent
Type of Relay
Latching
electromechanical
Latching
electromechanical
Latching
electromechanical
Dry reed FET solid-state
Latching
electromechanical
Dry reed Dry reed
Latching
electromechanical
N/A
Contact Configuration
2 Form A 2 Form A 2 Form A
1 Form A 2 Form A 2 Form A 2 Form A 1 Form A 28 Form C, 4 Form A N/A
Max. Voltage
300 V
300 V (ch 1–40),
60 V (ch 41–42)
300 V
200 V 200 V 300 V 200 V 200 V
300 VDC/250 VAC
(Form A)
N/A
Max. Current Switched
1 A
2 A (ch 1–40),
3 A (ch 41–42)
1 A
1 A 0.1 A 1 A 1 A 0.75 A
2 A (Form C), 7 A
(Form A)
N/A
Comments
2 independent 1×30
multiplexers. Automatic
temperature reference
when used with screw
terminal accessory
(Model 3720-ST)
2 independent 1×20
multiplexers. Automatic
temperature reference
when used with screw
terminal accessory
(Model 3721-ST)
2 independent 1×48
multiplexers
2 independent 1×30
multiplexers
2 independent
1×30 multiplexers.
Automatic
temperature
reference when used
with screw terminal
accessory (Model
3724-ST)
Columns can be
expanded through
the backplane or
isolated by relays
Relay actuation time
of 0.5ms. Columns
can be expanded
through the
backplane or isolated
by relays
Banks can be
connected
together via bank
configuration relays
to create a single
4×112 or dual 4×56
matrix. Analog
backplane relays also
included for card
to card expansion.
Row expansion with
3732-ST-R accessory
to create a dual 8×28
or single 16×28
matrix.
32 general purpose
independent
channels.
All-in-one card
design. 40
bidirectional
I/O. Four 32-bit
counter/totalizers.
2 programmable
analog (V or I)
outputs.
Plug-in Card Accessories
3720 3721 3722 3723 3724 3730 3731 3732 3740 3750
Cables
3720-MTC-1.5,
3720-MTC-3
3721-MTC-1.5,
3721-MTC-3
3722-MTC-1.5,
3722-MTC-1.5/MM,
3722-MTC-3,
3722-MTC-3/MM
3720-MTC-1.5,
3720-MTC-3
3720-MTC-1.5,
3720-MTC-3
3721-MTC-1.5,
3721-MTC-3
3721-MTC-1.5,
3721-MTC-3
3732-MTC-1.5,
3732-MTC-3
3721-MTC-1.5,
3721-MTC-3
3721-MTC-1.5,
3721-MTC-3
Screw Terminal Block
3720-ST 3721-ST
3723-ST, 3723-ST-1 3724-ST 3730-ST 3731-ST 3732-ST-C, 3732-ST-R 3740-ST 3750-ST
Connector Kits
3791-KIT78-R 3790-KIT50-R
3792-KIT104-R,
3792-KIT104-R/F
3791-KIT78-R 3791-KIT78-R 3790-KIT50-R 3790-KIT50-R 3791-KIT78-R 3790-KIT50-R 3790-KIT50-R
Tools
3791-CIT 3791-CIT
3791-CIT 3791-CIT 3791-CIT
Series 3700A
Plug-in Cards for Series 3700A Mainframes
• Multiplexer, matrix, and
I/O cards
• Relay closures automatically
counted and stored in each
card’s onboard memory
• Unlimited contact life with
solid-state relay (Model 3724)
• Automatic CJC for temperature
measurements when used
with screw terminal accessory
(Models 3720, 3721, 3724)
Ordering Information
3720 Dual 1×30
Multiplexer Card.........4
3721 Dual 1×20
Multiplexer Card.........6
3722 Dual 1×48, High Density,
Multiplexer Card.........8
3723 Dual 1×30, High
Speed, Reed Relay,
Multiplexer Card........10
3724 Dual 1×30 FET
Multiplexer Card........12
3730 6×16, High Density,
Matrix Card ............15
3731 6×16, High Speed, Reed
Relay, Matrix Card ......17
3732 Quad 4×28, Ultra-High
Density, Reed Relay,
Matrix Card ............19
3740 General Purpose Card
with 32 Independent
Channels ..............23
3750 Multifunction
Control Card ...........25
Plug-in cards for Series 3700A mainframes