M3i.48xx: 16 bit PCI / PCI-X / PCI-Express signal recorder sampling up to 180 MS/s

M3i logo
Up to 180M Samples/sec on one or two channels
Simultaneous sampling on all channels
6 input ranges from 200 mV to 10 V (buffered path) more info
Versatile recording trigger features, including auto re-arm
2 synchronous digital channels with multi-purpose I/O facility
Up to 1 GSample (2 GByte) memory
FIFO (streaming) mode for high-speed data transfer to the PC

M3i48xx image

The M3i.48xx series combines a high resolution 16 bit mega sample converter, with a carefully designed input amplifier section to give excellent dynamic performance, ultra low internal noise and hence precision results. Each input channel has its own latest generation monolithic A/D converter and amplifier giving synchronous zero phase delay between multiple channels (or cards, see Star Hub option below). The extremely large on-board memory allows long period recording even with the highest sampling rates. For even longer captures the FIFO mode allows the acquisition of data continuously to the PC for immediate processing and storage.

Standard features

  • FIFO mode more info
  • 10-bit resolution analogue channel trigger.
  • Dedicated connection for external trigger input, programmable in 1 mV (analogue) steps, or for TTL
  • Dedicated connection for external TTL clock input, or to output the cards sampling clock
  • Two general purpose digital I/O connectors configurable as asynchronous or synchronous to sampling, or as extra TTL trigger lines
  • Positive and negative edge trigger more info
  • Auto re-arm on edge trigger more info
  • High and low level trigger more info
  • Window triggermore info
  • AND/OR multiple trigger event combinations
  • Programmable delay until trigger recognition
  • SBench 6.x windows software
  • Deep standard memory: 256 MSample (512 MByte)
  • Selectable input impedance to 50 Ohm or 1 MOhm
  • 20MHz bandwidth (anti-aliasing) filter

Enhancements included More information on enhancements

  • ABA mode - Variable sampling speed, jump to fast capture on trigger
  • Multiple Recording - multiple sequential signal capture using fast repetitive triggers, auto re-arm
  • Time stamp - records the time of each trigger event

Special (cost) options More information on options

  • BASEXIO - Extra asynchronous digital I/O with additional trigger lines
  • Memory upgrade to 512MSample or 1 GSample
  • Threaded SMA signal connectors instead of SMB on card end plate
  • Synchronisation Star Hub - synchronise up to 8 cards
  • Remote Server - programme, control and monitor Spectrum M2i, M3i or M4i cards in a remote location

Product range overview


max sample rate

name 1 channel 2 channel
M3i.4830 65 MS/s  
M3i.4831 65 MS/s 65 MS/s
M3i.4840 105 MS/s  
M2i.4841 105 MS/s 105 MS/s
M3i.4860 180 MS/s  
M2i.4861 180 MS/s 180 MS/s
PCI-Express versions simply suffixed -exp, e.g. M3i.4861-exp

Pre-Amplifier modules

Recording very small signals? High frequency wide bandwidth pre-amplifiers are available to enhance the gain range of the M3i range.
Click on the image below for more information.

SPA amplifier module - link to information page


  • Standard drivers Windows 2000 / XP / Vista / Windows 7, 8, 10 and Linux
  • SBench 6.x signal processing windows software
  • Drivers for LabVIEW and LabWindows/CVI. (VEE and Dasylab by special order)
  • Driver for MATLAB


pdf link to m3i datasheet [PDF data sheet]
pdf link to m3i manual [PDF manual]

[SBench 6.x] Windows/Linux download allows testing of SBench functionality with or without hardware.

More information can be easily requested from our catalogues and pricing web page, or feel free to contact Dataquest Solutions directly.

            Home              Catalogue              Quote & Order            

Spectrum GmbH
Last modified by Dataquest Solutions Ltd 15.05.18