08 | Keysight | 34980A Multifunction Switch/Measure Unit - Data Sheet

Mix and Match 34980A Modules to Create Your Own Custom Coniguration

The 34980A mainframe holds up to eight plug-in modules. Mix and match them to create a custom system to meet your switching

and system control needs. You can easily add or replace modules as your needs change.s

Table 1. 34980A modules at a glance

Module

Description

Max volts

Switch/Carry

current

BW (MHz)

Scan

ch/sec

Thermal

offset

Comments

Multiplexer modules

34921A

40-channel armature multiplexer w/low

thermal offset

± 300 V

1A/2A

45 MHz

100

< 3 μV

Temperature reference

4 current channels

Conig as 2- or 4-wire

34922A

70-channel armature multiplexer

± 300 V

1A/2A

25 MHz

100

< 3 μV

Conig as 2- or 4-wire

34923A

40/80-channel reed multiplexer

± 150 V

0.5A/1.5A

45 MHz

500

< 50 μV

Conig as 1-, 2- or 4-wire

34924A

70-channel reed multiplexer

± 150 V

0.5A/1.5A

25 MHz

500

< 50 μV

Conig as 2- or 4-wire

34925A

40/80-channel optically isolated

FET multiplexer

± 80 V

0.02A

1 MHz

1000

< 3 μV

Conig as 1-, 2- or 4-wire

Matrix modules

34931A

Dual 4x8 armature matrix

± 300 V

1A/2A

30 MHz

100

< 3 μV

Backplane expandable

34932A

Dual 4x16 armature matrix

± 300 V

1A/2A

30 MHz

100

< 3 μV

Backplane expandable

34933A

Dual/Quad 4x8 reed matrix

± 150 V

0.5A/1.5A

30 MHz

500

< 50 μV

Backplane expandable

Conig as 1- or 2-wire

34934A

Quad 4x32 reed matrix

+/–100V

0.5A/0.5A

20MHz

500

< 50 μV

Row expansion kit.

Conig as 1- or 2-wire

General-purpose modules

34937A

28-channel Form C and

4-channel Form A

+/–300 V

+/–250 VAC

1A/2A

5 A

10 MHz

N/A

< 3 μV

< 3 μV

34938A

20-channel 5-amp Form A

+/–250 VAC

5A/8A

1 MHz

N/A

< 3 μV

34939A

64-channels Form A

+/–100V

1A/2A

10MHz

N/A

< 3 μV

Module

Description

Insertion

loss

Isolation

Freq range

VSWR

Input

impedence Comments

RF and microwave modules

34941A

Quad 1x4 50 ohm 3 GHz RF multiplexer

0.6 dB

> 58 dB

3 GHz

< 1.25

50 Ω

@ 1 GHz

34942A

Quad 1x4 75 ohm 1.5 GHz RF multiplexer

0.6 dB

> 60 dB

1.5 GHz

< 1.35

75 Ω

@ 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 your own combination. Expand with additional 34945EXTs.

34946A

Dual 1x2 SPDT terminated

microwave switch

< 0.42 dB

< 0.69 dB

< 0.8 dB

> 85 dB

> 67 dB

> 60 dB

4 GHz or

20 GHz

26.5 GHz

< 1.15

< 1.30

< 1.6

50 Ω

@ 4 GHz

@ 20 GHz

@ 26.5GHz

34947A

Triple 1x2 SPDT unterminated

microwave switch

< 0.42 dB

< 0.69 dB

< 0.8 dB

> 85 dB

> 67 dB

> 60 dB

4 GHz or

20 GHz

26.5 GHz

< 1.15

< 1.30

< 1.6

50 Ω

@ 4 GHz

@ 20 GHz

@ 26.5GHz

System control modules

Description

34950A

64-bit digital I/O with memory

and counter

Eight 8-bit digital I/O channels with programmable polarity, thresholds up to 5 V,

with handshaking protocols and pattern memory. Two 10 MHz frequency counter 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 +12 V and +5 V supplies,

16 GPIO ports and 28 relay drive lines.