Datasheet

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Matrix switch modules
34931A
34932A
34933A
34934A
Channels/configurations
dual 4x8
8x8
4x16
dual 4x16
8x16
4x32
dual 4x8
8x8
4x16
quad 4x8, 1-wire
quad 4x32
4x128
8x64
16x32
Switch type
Armature latching
Armature latching
Reed non-latching
Reed non-latching
Input characteristics (per channel)
Max volts
± 300 V
1
± 300 V
1
± 150 V peak
2
± 100 V peak
Max current (DC, AC RMS)
Switch current
1 A
1 A
0.5 A
5
/0.05 A
8
0.5 A
Carry current
2 A
2 A
1.5 A
5
/0.05 A
8
0.5 A
Power (W, VA)
2, 6
60 W
60 W
10 W
7
10 W
Volt-Hertz limit
108
108
108
108
Initial closed channel res
3, 9
< 1.5 Ω
< 1.5 Ω
< 1.5 Ω
5
/200 Ω
8
nominal
< 1Ω/100 Ω
General Specifications
Offset voltage 3
< 3 uV
< 3 uV
< 50 uV
< 100 uV 1-wire
< 20 uV
< 50 uV 1-wire
DC Isolation (ch-ch, ch-earth)
> 10G Ω
> 10G Ω
> 10G Ω
10G Ω
AC characteristics
Bandwidth at terminal block
4
30 MHz
30 MHz
30 MHz
5
/4 MHz
8
2 MHz 1-wire
35 MHz 2-wire
15 MHz 1-wire
Crosstalk at terminal block (ch-ch)
4
300 kHz
–65 dB
–65 dB
–65 dB
–65 dB
1 MHz
20 MHz
–55 dB
–30 dB
–55 dB
–30 dB
–55 dB
–40 dB
–55 dB
–33 dB
Capacitance at terminal block
HI-LO
LO – earth
50 pF
80 pF
50 pF
80 pF
80 pF
75 pF
45 pF
250 pF
General characteristics
Relay life, typical
No load
100 M
100 M
1000 M
1000 M operations
10 V, 100 mA
Rated load
10 M
100 k
10 M
100 k
10 M
10 k
Open/close time
4 ms/4 ms
4 ms/4 ms
0.5 ms/0.5 ms
0.35 ms/0.10 ms
Analog bus backplane connection
Bank 2
Bank 2
Bank 2
No
1. DC or AC RMS voltage, channel-to-channel or channel-to-earth
2. Peak voltage, channel-to-channel or channel-to-earth
3. Into analog bus. System errors are included in the internal DMM measurement accuracy specifications
4. 50 Ω source, 50 Ω load, differential measurements verified (Sdd21)
5. With input resistors bypassed. Bypassing resistors will reduce lifetime of relays. See the rated load relay life characteristics.
6. Limited to 6 W channel resistance power loss per module
7. Power restrictions allow only 20 channels to be closed at one time
8. Protection Resistors:
9. 34933A - 100Ω ±5%; 0.5W; TC = ±200ppm/°C.
10. 34934A - 100Ω ±1%; 0.25W; TC = ±100ppm/°C.
11. If this resistance is not bypassed in the low side source line of a 4-wire resistance measurement, the 100 Ω range is limited.
12. Channel resistance is typically < 1.5 Ω but can go as high as 50 Ω when a channel is used in measurement applications with < 10 mA load current.
Increased relay channel resistance for measurements with load currents below 10 mA can occur on cards that have been out of service or following relay
inactivity for periods of greater than 1 week. Switching relays for 2K cycles prior to use may reduce the variation in channel resistance. Applies to the
34931A and 34932A. Keysight recommends the use of 4-wire Ohms for resistance measurements. For high accuracy voltage measurements, select the
DMM input resistance setting of > 10 G ohms to minimize the impact of relay contact resistance.