Detector Readout Systems
mesytec MADC-32 is a fast and high quality 32 channel peak sensing ADC. It provides an 11 to 13 Bit (2 to 8 k) resolution with low differential non linearity due to sliding scale method. In 8 k mode it provides the high INL and resolution required for Ge detector readout. The conversion time is 800 ns for 32 channels at 2 k resolution. It supports zero suppression with individual thresholds.
Features
  • High quality 11 to 13 bit (2, 4, 8 k) conversion with
    sliding scale ADC (DNL <1 % @ 4 k)
  • 800 ns, 1.6 us, 6.4 us conversion time for 32 channels
    with 2 k, 4 k, 8 k resolution
  • 8 k (32 bit-) words multi event buffer
    (1 word corresponds to 1 converted channel
    => 240...2730 events total)
  • Zero suppression with individual thresholds
  • Supports different types of time stamping
  • Independent bank operation
  • Two register adjustable gate generators are built-in
  • Input range, register selectable 4 V, 8 V, 10 V
  • mesytec control bus to control external mesytec modules
  • Address modes: A24 / A32
  • Data transfer modes: D16 (registers),
    D32, BLT32, MBLT64, CBLT, CMBLT64
  • Multicast for event reset and time stamping start
  • Live insertion (can be inserted in a running crate)

New for V2.1 Revision:

  • 8 k words memory
  • lower INL for very long shaping times and low amplitudes
  • Thresholds can be deactivated with a single register
  • Extended time stamp also for independent bank operation



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