16 | Keysight | 34980A Multifunction Switch/Measure Unit - Data Sheet
Table 5. GP actuator selection table—speciꢁcations and characteristics
34937A
34938A
34939A
Channels/conꢁgurations
28 Form C
4 Form A
20 Form A
64 Form A
Switch type
Armature, latching
Armature, latching
30 VDC/250 VAC
Armature, latching
Input characteristics (per channel)
Max volts (DC, AC RMS) [1]
Form C – 300 V
+/- 100 V peak
Form A – 30 VDC/250 VAC
Max current (DC, AC RMS)
Form C – 1 A (2 A carry)
Form A – 5 A switch
(8 A carry)
5 A switch
(8 A carry)
1A switch
(2A carry)
Power (W, VA) [2]
Form C –60 W
Form A – 150 W
108
60 W
108
150 W
108
Volt-Hertz limit
General speciꢀcations
Offset voltage
3 μV
3 μV
3 μV
Initial closed channel res
Form C – 125 mΩ
Form A – 50 mΩ
< 125 mΩ
< 60 mΩ
> 10G Ω
DC Isolation (ch-ch, ch-earth)
AC characteristics
> 10G Ω
10G Ω
Bandwidth at terminal block [3]
10 MHz
1 MHz
10 MHz
Channel Isolation at terminal block [3]
100 kHz
1 MHz
10 MHz
55 dB
35 dB
15 dB
60 dB
40 dB
45 dB
25 dB
5 dB
Capacitance at terminal block
CH – CH
CH – earth
Form C 12 pF/ Form A 10 pF
Form C 21 pF/Form A 18 pF
65 pF
105 pF
20 pF
70 pF
General characteristics
Relay life no load/rated
Form C – 100 M/100 k
Form A – 50 M/30 k
> 100 M/100 k
4 ms / 4 ms
maintain
No
50 M/30 k
Open/close time
Form C – 4 ms/4 ms
Form A – 10 ms/10 ms
10 ms/10 ms
Initial/reset relay state
Analog bus backplane connection
Form C – maintain state
Form A – user conꢁgurable
user conꢁgurable
No
No
[1] DC or AC RMS voltage, channel-to-channel or channel-to-earth
[2] Limited to 6 W of channel resistance power loss per module
[3] 50 Ω source, 50 Ω load, differential measurements verified (S21)
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