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Keysight High-Speed Digitizers Team has developed several acquisition modes with the objective to optimize performances of the M9710A, M9709A, M9703B  AXIe and M9203A PXIe digitizers.



DGT: Standard DiGiTizer mode.

TSR: Triggered Simultaneous acquisition and Readout.

CBx: Continuous Simultaneous Acquisition and Readout

         CB0: digitizer streaming and recording (with 1 GS/s and 1.6 GS/s)

         CB1: digital down-converter streaming and recording (with 1 GS/s)

         CB2: digital down-converter streaming and recording (with 1.6 GS/s)


For more details about the CBx Options, click here:


Supported modes per digitizers 

















√ CB2



DGT option: Standard Acquisition (single or multi-records)


With this option, the readout of the data is performed after the acquisition has stopped.

The acquisition data rate supported is up to the maximum allowed by the digitizer.

           Single record acquisition

Standard Acquisition and Readout

Standard Acquisition


          Multi-record acquisition

Standard Triggered Acquisition and Readout

Standard Triggered Acquisition And Readout

Supported models

M9710A, M9703B, M9709A, M9203A.


For all acquisition modes or options, the user can define:

  • the record size
  • the number of records
  • a positive or negative trigger delay (as illustrated in the figure below)
  • the trigger source: channel, external or software (or from the AXIe SYNC for M9703B, M9709A and M9710A)


Triggering options 


Additional features depending on the digitizer:

  • Acquisition Memory: The maximum number of sample that can be recorded depending on the digitizer model and accordingly to the selected on-board memory option.
  • Interleaving: On digitizers with INT option, two channels can be interleaved doubling the sampling rate (INT option, available on M9203A, M9703B).
  • External clock: The sampling rate can be tuned using an external clock reference (you can refer to product datasheet for supported frequency range).
  • Decimation: lower sample rate can be achieves using programmable binary decimation. When enabling the decimation, the resulting sampling rate becomes:

                                 Effective sampling rate= (Sampling rate)/(Decimation ratio)
With Decimation ratio=2^n

(Supported n values depend on the digitizer model; details about memory, supported effective sampling rates, etc. can be found in your digitizer user manual available on the product webpage.)


This introduction aims to provide you a first overview of the different acquisition modes. In the next post, we will talk about the TSR option: Triggered Simultaneous Acquisition and Readout.


Keysight related products:



For more information about our AXie and PXie solutions, please contact us at

The New Catalog for Modular Products has been issued and includes the M9203A PXIe High-Speed digitizer, the M9703B, the M9710A and the M9709A AXIe High-Speed digitizers. For more information, click here.


PXI and AXIe Products and Solutions Catalog


For more information about our AXie and PXie solutions, please contact us at

This presentation describes the differences between digitizer and oscilloscope measurements and explains how the trade-offs will impact your wideband measurement results.

Wider communication bandwidths are used more and more to keep up with the changes in wireless communication standards as well as for many aerospace & defense industry programs. Regardless of the carrier frequency, digitizers and oscilloscopes are key tools for wideband analysis. The challenges associated with wideband measurements lead us to think differently about our measurement instrument selection because using the correct approach will greatly improve your measurement results.

Key topics:

  • Differences in measurement fidelity
  • How to address automation or events and triggering
  • How to identify glitches or infrequent events
  • The best way to implement multi-channel, coherent measurements

Use cases from wireless and A/D applications will be included.


To access the presentation click here.


For more information about Keysigth High-Speed Digitizers, please contact us at