Datasheet

Page 13
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Customize your Keysight 34970A/34972A with
plug-in modules
A complete selection of plug-in modules gives you high quality
measurement, switching, and control capabilities to choose
from. Modules include both low-frequency and RF multiplexers,
a matrix switch, a general-purpose switch, and a multifunction
module that includes digital input/output, analog output, and
totalizer capabilities. You can mix and match modules to get just
the functionality you need right now—then change or add more
channels later as your application grows.
Modules for the 34970A/34972A are designed to make your
testing easier, faster, and more reliable. Here’s how:
Higher throughput
Our unique architecture incorporates a high-performance
microprocessor on each module, off loading the mainframe
processor and minimizing backplane communications for faster
throughput.
More channels in less space
Surface mount construction and a highly integrated design
minimize the space required for relay drive and interface circuitry.
High density on-module connectors save both board and
connector space normally required by a terminal block. We use
the latest technology to squeeze the most out of the remaining
board space, giving you up to 40 single-ended channels in
roughly the same space used by many data acquisition system
terminal blocks.
Convenient connections
On-module screw-terminal connectors make wiring more
convenient. Built-in strain relief cable routing and cable tie
points keep your wiring secure and safe from accidental tugs and
pulls. An internal analog bus routes signals from any of the low
frequency multiplexers directly to the internal DMM, without the
need for external connections.
Use the chart below to help you pinpoint the modules that meet
your needs.
34970A and 34972A Keysight modules-at-a-glance selection guide
Model description Type Speed
(ch/sec)
Max
volts
Max
amps
Bandwidth Thermal
offset
Comments Page
34901A
20 ch Multiplexer
+ 2 current channels
2-wire armature
(4-wire selectable)
60 300 V 1 A 10 MHz < 3 µV Built-in cold junction reference
2 additional current channels
(22 total)
21
34902A
16 ch Multiplexer
2-wire reed
(4-wire selectable)
250
[1]
300 V 50 mA 10 MHz < 6 µV Built-in cold junction reference 21
34903A
20 ch Actuator/GP Switch
SPDT/form C 120 300 V 1 A 10 MHz < 3 µV 23
34904A 4 x 8 Matrix 2-wire armature 120 300 V 1 A 10 MHz < 3 µV 23
34905A
Dual 4 ch RF Mux 50 Ω
Common low
(unterminated)
60 42 V 0.7 A 2 GHz < 6 µV 1 GHz bandwidth through
BNC-to-SMB adapter cable
24
34906A
Dual 4 ch RF Mux 75 Ω
Common low
(unterminated)
60 42 V 0.7 A 2 GHz < 6 µV 1 GHz bandwidth through
BNC-to-SMB adapter cable
24
34907A
Multifunction Module
Two 8-bit digital I/O ports 42 V 400 mA Open drain 25
26-bit event counter 42 V 100 KHz Selectable input threshold
Two 16-bit analog outputs ±12 V 10 mA dc Max 40 mA total output per frame
34908A
40 ch Single-Ended Mux
1-wire armature
(common low)
60 300 V 1A 10 MHz < 3 µV Built-in cold junction reference
No four-wire measurements
21
[1] Up to 250 ch/sec to internal memory.
See scanning rates for measurement condition and rate on each instrument.