Atec Agilent-34972A - Manual (Page 13)

13
Customize your Agilent 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 inter-
nal DMM, without the need for external connections.
Use the chart below to help you pinpoint the modules that
meet your needs.
34970A and 34972A Agilent 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 50Ω 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 75Ω 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.