13 | Keysight | 34970A Data Acquisition/Switch Unit Family - Technical Overview
www.keysight.com/find/ 34970A
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�
To Next Page
Loading...
