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Keysight DAQ973MB Good Switching Bundle
Includes a DAQ973A Single 3-Slot Data Acquisition Mainframe (USB, LAN and GPIB) and Three 20-channel DAQM901A Multiplexer Modules
DAQ973A Data Acquisition System Mainframe Features
DAQ973A is a mainframe for housing DAQM plug-in modules. Interface with the DAQ using Keysight BenchVue DAQ software or use the intuitive graphical front panel with task-oriented, self-guiding menus (similar to DAQ970A). However, the DAQ973A adds GPIB capability to the popular DAQ970A. It is the perfect replacement and upgrade to the 34970A if you require a GPIB interface.

Mainframe Capabilities:
Supports 10 switch and control plug-in modules
Types of measurements: Temperature, voltage, current, resistance, frequency, diode and capacitance, direct strain and bridge strain
Digital Input/Output: Up to 48-bits
Analog Output: -10 V to +10 V, 20 mA
Multiplexing: Maximum 120 (1-wire), 60 (2-wire) channels
Matrix switching: Maximum 96 cross points
General purpose: Maximum 60 switches
RF multiplexing: Maximum 24 channels, 2 GHz
Simultaneous sampling: Maximum 12 channels, up to 800 kSa/s, 24-bit resolution
Interface: Graphic web, USB front/rear, LAN/LXI, GPIB (only for DAQ973A)
DAQ System Highlights:
3-slot cardcage with 6-1/2 digit (22 bit) internal DMM scanning up to 450 channels per second with new solid-state multiplexer module
Built-in signal conditioning measures thermocouples, RTDs and thermistors, AC/DC volts and current; resistance, frequency/period, diode test and capacitance
100k readings of non-volatile memory holds data when power is removed
Hi/LO alarm limits on each channel, plus 4 TTL alarm outputs
Measures very low current ranges (1 µA DC and 100 µA AC) and higher resistance (1000 MΩ)
New auto-calibration compensates for internal drifts caused by time / temperature changes
34970A/34972A compatible program and configuration
Updated modules have improved switching speeds and accuracies
USB flash drive support to copy/log data in standalone applications
LAN/LXI, USB, and GPIB for easy connectivity to your PC
BenchVue DAQ application with enhanced time/frequency domain measurement included
Three-year warranty

Built-in Signal Conditioning to Get Your Job Done
Whether you need to measure temperature, ac/dc volts, resistance, frequency, or current, the DAQ970A can handle it. The internal autoranging DMM directly measures 12 different functions, eliminating the need for expensive external signal conditioning. And its unique design allows complete per channel configurability for maximum flexibility and quick, easy set up. It's like having an independent, high-performance DMM behind each channel.
More Channels in Less Space
Surface mount construction and a highly integrated design minimize the space required for relay drive and interface circuitry. High density on-module connectors save both board and connector space normally required by a terminal block. Keysight uses the latest technology to squeeze the most out of the remaining board space, giving you up to 40 single-ended channels in roughly the same space used by many data acquisition system terminal blocks.
Simplify Your Data Gathering and Analysis with Keysight's BenchVue
BenchVue software offers an intuitive interface for test configuration, real-time data display, and analysis. It allows quick setup and measurements, data export, and real-time logging with various display types. The software supports many Keysight instruments, providing a single interface for popular devices. Its familiar spreadsheet environment simplifies test configuration and control, enabling multiple graphics setups like strip charts, histograms, bar and scatter charts, and individual channel results for inclusion in presentations and reports.

Front Panel Features
USB port
On/Standby switch with LED indicator
Display
Softkeys
Measurement operation menu (to control the initiation of the measurements)
Measurement configuration menu (to set parameter for measurements)
Knob
Cursor navigation keypad

Rear Panel Features
Slot identifier (100, 200, 300)
GPIB interface (DAQ973A only)
AC mains input
LAN interface
External trigger input, alarm outputs, channel advance input, and channel
close output
USB interface
Chassis ground screw
DAQM901A 20-Channel General Purpose Multiplexer Module Features
The Keysight DAQM901A is a highly versatile multiplexer designed for general-purpose scanning. It features dense, multifunction switching with scan rates of 80 channels per second, making it suitable for a wide range of data acquisition tasks. The module supports both two- and four-wire channels simultaneously. Additionally, it includes two extra fused inputs (22 channels in total) that can route up to 1 A of current to the internal DMM, enabling AC and DC current measurements without the need for external shunt resistors.

Key Features:
80 ch/s scanning
Two- and four-wire scanning
Built-in thermocouple reference junction
300 V switching
Customize your Keysight DAQ970A with Additional Plug-in Modules (sold separately)
A complete selection of plug-in modules gives you high quality measurement, switching, and control capabilities to choose from. Modules include both low-frequency and RF multiplexers, a matrix switch, a general-purpose switch, and a multifunction module that includes digital input/output, analog output, and totalizer capabilities. You can mix and match modules to get just the functionality you need right now — then change or add more channels later as your application grows.
Data Acquisition/Switch Unit Modules for the DAQ970A Data Acquisition System
Choose between the broad functionality of the DAQM901A, the high-speed scanning of the DAQM902A, or the DAQM900A solid-state module the single-ended density of the DAQ908A. All multiplexer modules employ break-before-make scanning, ensuring only one closed channel (or channel pair) at a time.

Model | Type | Speed (Ch/Sec) | Max Voltage | Max Current | Bandwidth | Thermal Offset | Comments |
---|---|---|---|---|---|---|---|
DAQM900A | 2-wire solid state | 450 | 120 V | 20 mA | 10 MHz | < 4 µV | Built-in cold |
DAQM901A | 2-wire armature | 80 | 300 V | 1 A | 10 MHz | 0 µV | Built-in cold junction |
DAQM902A | 2-wire reed | 250 | 300 V | 50 mA | 10 MHz | < 4 µV | Built-in cold |
DAQM903A | SPDT/form C | 120 | 300 V | 1 A | 10 MHz | < 1 µV | |
DAQM904A 4 x 8 Matrix | 2-wire armature | 120 | 300 V | 1 A | 10 MHz | < 1 µV | |
DAQM905A Dual 4 ch RF Mux 50 Ohm | Common low | 60 | 42 V | 0.7 A | 2 GHz | < 4 µV | 1 GHz bandwidth |
DAQM907A Multifunction | Two 8-bit | 42 V | 400 mA | Open drain | |||
Two 8-bit | 42 V | 100 kHz | Selectable input | ||||
Two 18-bit | ± 12 V | 15 mA | dc | Max 40 mA total | |||
DAQM908A 40 ch Single-Ended Mux | 1-wire armature | 100 | 300 V | 1 A | 10 MHz | No four-wire | |
DAQM909A 4 ch Digitizer | Simultaneous | 800 kSa/s | 36 Vpk | 24-bit resolution, | |||
DAQM910A 20 ch Low Voltage | 2-wire armature | 80 | 40 Vpk | 1 A | 10 MHz | 0 μV | Built-in cold |
What's in the Box
- DAQ973A Data Acquisition Mainframe
- Three DAQM901A Multiplexer Modules