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Keysight Technologies 34904A

4 x 8 Two-Wire Matrix Module; for 34970A/34972A

Model

34904A

Product Family

Multimeter

Manufacturer

Keysight Technologies

Configured models contain the following attributes:

MultimeterData AcquisitionCounters & Function GeneratorsData Acquistion

Configurations

Key Specs

Product Overview

Resources

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Product Overview

The Keysight 34904A module for the 34970A/34972A Data Acquisition/Switch Unit gives you the most flexible connection path between your device under test and your test equipment, allowing different instruments to be connected to multiple points on your DUT at the same time. Rows or columns may be connected between multiple modules to build 8 x 8, 4 x 16 or larger matrices, with up to 96 crosspoints in a single frame.

Key Features

4 x 8 Matrix Switch

32 two-wire crosspoints

300 V, 1 A switching

Specifications
34970A and 34972A Module Overview
Module	Type	Speed (ch/sec)	Max Volts	Max Amps	Bandwidth	Thermal Offset	Comments
34901A 20 ch Multiplexer + 2 current channels	2-wire armature (4-wire selectable)	60	300 V	1A	10 MHz	< 3 µV	Built-in cold junction reference 2 additional current channels (22 total)
34902A 16 ch Multiplexer	2-wire reed (4-wire selectable)	250*	300 V	50 mA	10 MHz	< 6 µV	Built-in cold junction reference
34903A 20 ch Actuator/GP Switch	SPDT/form C	120	300 V	1A	10 MHz	< 3 µV
34904A 4 x 8 Matrix	2-wire armature	120	300 V	1A	10 MHz	< 3 µV
34905A Dual 4 ch RF Mux 50 Ω	Common low (unterminated)	60	42 V	0.7 A	2 GHz	< 6 µV	1 GHz bandwidth through BNC-to-SMB adapter cable
34906A Dual 4 ch RF Mux 75 Ω	Common low (unterminated)	60	42 V	0.7 A	2 GHz	< 6 µV	1 GHz bandwidth through BNC-to-SMB adapter cable
34907A Multifunction Module	Two 8-bit digital I/O ports		42 V	400 mA			Open drain
	26-bit event counter		42 V		100 KHz		Selectable input threshold
	Two 16-bit analog outputs		± 12 V	10 mA	dc		Max 40 mA total output per frame
34908A 40 ch Single-Ended Mux	1-wire armature (common low	60	300 V	1A	10 MHz	< 3 µV	Built-in cold junction reference No four-wire measurements

Note:

* Up to 250 ch/sec to internal memory. See scanning rates for measurement condition and rate on each instrument.

Ordering Information
Model Number	Description
Mainframe
34970A	Data Acquisition/Switch Unit with RS-232 and GPIB
34972A	Data Acquisition/Switch Unit with LAN and USB
Modules
34901A	20-Channel armature multiplexer
34902A	16-Channel reed multiplexer
34903A	20-Channel actuator/general purpose switch
34904A	4 x 8 Two-wire matrix switch
34905A	Dual 4-Channel RF multiplexer, 50 Ohms
34906A	Dual 4-Channel RF multiplexer, 75 Ohms
34907A	Multifunction module
34908A	40-Channel single-ended multiplexer

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