Atec Agilent-34901A User Manual

Chapter 9 Specifications

Module Specifications

Module Specifications

HP 34901A, 34902A, 34908A, 34903A, 34904A

General 34901A

Number of Channels 20+2 16 40 20 4x8

2/4 wire 2/4 wire 1 wire SPDT 2 wire
Connects to Internal DMM Yes Yes Yes No No
Scanning Speed 60 ch/s 250 ch/s 60 ch/s
Open/Close Speed 120/s 120/s 70/s 120/s 120/s

Maximum Input

Voltage (dc, ac rms) 300 V 300 V 300 V 300 V 300 V
Current (dc, ac rms) 1 A 50 mA 1 A 1 A 1 A
Power (W, VA) 50 W 2 W 50 W 50 W 50 W
Isolation (ch-ch, ch-earth) dc, ac rms 300 V 300 V 300 V 300 V 300 V

DC Characteristics

Offset Voltage
Initial Closed Channel R
Isolation (ch-ch, ch-earth) > 10 GΩ > 10 GΩ > 10 GΩ > 10 GΩ > 10 GΩ

AC Characteristics

Bandwidth 10 MHz 10 MHz 10 MHz 10 MHz 10 MHz
Ch-Ch Cross Talk (dB)
Capacitance HI to LO < 50 pF < 50 pF < 50 pF < 10 pF < 50 pF
Capacitance LO to Earth < 80 pF < 80 pF < 80 pF < 80 pF < 80 pF
Volt-Hertz Limit

Other

T/C Cold Junction Accuracy
Switch Life No Load (typical) 100M 100M 100M 100M 100M
Switch Life Rated Load (typical)
Temperature Operating All Modules – 0

Temperature Storage All Modules – -20
Humidity (non-condensing) All Modules – 40

[1]

[1]

[2]

10 MHz -45 -45 -18

[1]

(typical) 0.8 °C0.8 °C0.8 °C

< 3 µV< 6 µV< 3 µV< 3 µV< 3 µV

< 1Ω < 1Ω < 1Ω < 0.2Ω < 1Ω

8

108 108 108 108

10

[4]

100k 100k 100k 100k 100k

Multiplexer Actuator Matrix

34902A 34908A 34903A 34904A

[3]

°C to 55 °C

°C to 70 °C

°C / 80% R.H.

-45 -33

[1] Errors included in the DMM measurement accuracy specifications

Ω source, 50Ω load

[2] 50
[3] Isolation within channel 1 to 20 or 21 to 40 banks is -40 dB
[4] Applies to resistive loads only

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