Keysight Technologies Data Acquisition Multiplexer for Use with Data Acquisition & Switch Unit

The 34908A 40 channel single ended multiplexer features the greatest density in common low applications, for example component characterisation and benchtop testing. All two wire internal measurements except current are supported, whilst the module low connection is also isolated from earth allowing it to float up to 300V. This module switches 40 one wire inputs and features a built-in thermocouple reference junction.

Applications include use with the 34970A (810-5027) and 34972A (702-7958) Data Acquisition/Switch unit.

• 60 ch/s scanning
• Built-in thermocouple reference junction
• 40 channel single-ended multiplexer
• Single-wire switching

The Keysight USB Data Acquisition (DAQ) family offers the choice and flexibility to create standalone or modular solutions that expand and evolve according to test requirements.

Also known as a mux or data selector, a multiplexer device is used to forward multiple digital and analog input signals in to one single output. in forwarding multiple signals in to one output, a multiplexer allows several signals to share one device. Demultiplexers or demux operate in reverse, they are often used for cost reduction in conjunction with one another, often within communication and data links.

Thermocouples must be electrically isolated from each other to avoid current loops and subsequent measurement errors.

Keysight USB Data Acquisition (DAQ)

The Keysight USB Data Acquisition (DAQ) family offers the choice and flexibility to create standalone or modular solutions that expand and evolve according to test requirements.