Specifications

Introduction to the Plug-In Modules for the 34980A 4
Agilent 34980A Mainframe User’s Guide 165
Available Modules, at a Glance
Module Description Max
volts
Max
Current
BW
(MHz)
Scan
ch/sec
Thermal
Offset
Comments
Multiplexer Modules
34921A 40-channel armature multiplexer
w/low thermal offset
±300V 1A 45 MHz 100 <3
µV Temperature reference
4 current channels
Config as 2- or 4-wire
34922A 70-channel armature multiplexer ±300V 1A 25 MHz 100 <3
µV Config as 2- or 4-wire
34923A 40/80-channel reed multiplexer ±150V 0.5A 45 MHz 500 <50
µV Config as 1-, 2- or 4-wire
34924A 70-channel reed multiplexer ±150V 0.5A 25 MHz 500 <3
µV Config as 2- or 4-wire
34925A 40-channel optically isolated
FET multiplexer
±80V 0.02A 1 MHz 1000 <3
µV Config as 1-, 2- or 4-wire
Matrix Modules
34931A Dual 4x8 armature matrix ±300V 1A 30 MHz 100 <3
µV Backplane expandable
34932A Dual 4x16 armature matrix ±300V 1A 30MHz 100 <3
µV Backplane expandable
34933A Dual/Quad 4x8 reed matrix ±150V 0.5A 30 MHz 500 <50
µV
34934A High Density reed matrix ±100V 0.5A 35 MHz 500 <50 µV
General Purpose Switch Modules
34937A 28-channel Form C and
4-channel 5-Amp Form A
300 V
250 VAC
1 A
5 A
10 MHz N/A <3
µV
34938A 28-channel 5-amp Form A 250 VAC 5 A 1 MHz N/A <3
µV
34939A 64-channel Form A 100V 1A 40 MHz N/A <3µV
RF and Microwave Modules
Module Description Insertion
Loss
Isolation Freq
Range
VSWR Input
Impedance
Comments
34941A Quad 1x4 50Ω 3GHz RF multiplexer 0.6 dB > 58 dB 3 GHz < 1.25 50Ω @ 1 GHz
34942A Quad 1x4 75Ω 1.5GHz RF multiplexer 0.6 dB > 60 dB 1.5 GHz < 1.35 75Ω @ 1 GHz
34945A/
34945EXT
Microwave switch attenuator/driver Can drive up to 64 external switch coils; 32 SPDT switches,8 multiport
switches, 8 attenuators, or a combination. Expand with additional 34945EXTs.
34946A Dual 1x2 SPDT terminated
microwave switch
< 0.42 dB
< 0.69 dB
> 85 dB
> 67 dB
4 GHz or
20 GHz
< 1.15
< 1.30
50Ω @ 4 GHz
@ 20 GHz
34947A Triple 1x2 SPDT unterminated
microwave switch
< 0.42 dB
< 0.69 dB
> 85 dB
> 67 dB
4 GHz or
20 GHz
< 1.15
< 1.30
50Ω @ 4 GHz
@ 20 GHz
System Control Modules
34950A 64-bit digital I/O with memory and
counter
Eight 8-bit digital I/O channels with programmable polarity, thresholds up to
5V, with handshaking protocols and pattern memory. Two 10MHz frequency
counters and programmable clock output to 20 MHz.
34951A 4-channel isolated D/A converter
with waveform memory
Output DC voltage up to ± 16 V or DC current up to ± 20 mA. Output waveforms
with a 200 kHz update rate and 16 bits of resolution. Use on-board memory to
create point-to-point waveforms with more than 500,000 points.
34952A Multifunction module with 32-bit
DIO, 2-ch D/A and totalizer
Four 8-bit digital I/O channels, two ± 12-V analog outputs, and a 100 kHz gated
totalizer.
34959A Breadboard module Create your own custom designs with access to the +12V and +5V supplies, 16
GPIO ports and 28 relay line drives
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