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DT5740

32 Channel 12 bit 62.5MS/s Digitizer

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Features

  • 12 bit 62.5 MS/s ADC
  • 32 / 16 channels
  • ERNI SMC Dual Row 68pin connector (32 channels)
  • Auxiliary ERNI SMC Dual Row 68pin connector
  • MCX connectors (16 channels by using auxiliary SMC)
  • 2 Vpp single ended input range (10 Vpp also available)
  • 16-bit programmable DC offset adjustment: ±1 V (±5 V)
  • Trigger Time stamps
  • Memory buffer: 192 kS/ch, up to 1024 events
  • FPGA for real-time data processing
  • Programmable event size and pre-post trigger adjustment
  • Optical Link interface (CAEN proprietary protocol)
  • USB 2.0 compliant interface
  • Firmware upgradeable via USB or Optical Link
  • Libraries, Demos (C and LabView) and Software tools for Windows and Linux
  • External AC-DC Power Supply Adapter (+12 V)
  • Dimensions: 154x50x164 mm3 (WxHxD)
More info
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Overview

The DT5740 is a 32 Channel 12 bit 62.5 MS/s (65 MS/s using external clock) Desktop Waveform Digitizer with 2 Vpp single ended input dynamics on ERNI SMC connectors. 16 channels are available also on MCX coaxial connectors. A version with 10 Vpp (single ended) input full scale range is also available (DT5740C). The DC offset is adjustable via a 16-bit DAC on each 8-channel group in the ±1 V (±5 V) range.
The module features front panel Clock Input and a PLL for clock synthesis from internal/external references. The data stream is continuously written in a circular memory buffer. When the trigger occurs, the FPGA writes further N samples for the post trigger and freezes the buffer that can be read by USB or Optical Link. The acquisition can continue without dead time in a new buffer.
Each channel has a SRAM Multi-Event Buffer of 192 kS divisible into 1 ÷ 1024 buffers of programmable size. The readout (by USB or Optical Link) of a frozen buffer is independent from the write operations in the active circular buffer (ADC data storage).
DT5740 supports multi-board synchronization allowing all ADCs to be synchronized to a common clock source and ensuring Trigger time stamps alignment. Once synchronized, all data will be aligned and coherent across multiple DT5740 boards.
The trigger signal can be provided externally via the front panel Trigger Input as well as via the software, but it can also be generated internally thanks to threshold self-trigger capability.
DT5740 houses USB 2.0 and Optical Link interfaces. USB 2.0 allows data transfers up to 30 MB/s. The Optical Link supports transfer rate of 80 MB/s and offers Daisy chain capability. Therefore, it is possible to connect up to 8/32 ADC modules to a single Optical Link Controller (Mod. A2818/A3818).
Software available (Windows and Linux):
CAEN provides drivers for all the different types of physical communication channels, a set of C and LabView libraries (CAENComm and CAENDigitizer), demo applications and utilities:

  • CAENUpgrader: tool that allows the user to update the firmware of the digitizers, change the PLL settings, load, when requested, the license for the pay firmware and other utilities.
  • CAEN WaveDump: software console application that can be used to configure and readout event data from any model of the CAEN digitizer family and save the data into a memory buffer allocated for this purpose.

Technical Specifications

GENERAL

Weight: 680 gr
Desktop module: 154x50x164 mm3 (WxHxD)

ANALOG INPUT
  • 32 channels (ERNI SMC Dual Row 68pin connector) or 16 channels (MCX coaxial connectors, 50 Ohm)
  • Single-ended
  • Input range: 2 Vpp (10 Vpp on DT5740C)
  • Bandwidth: 30 MHz
  • Programmable DAC for Offset Adjustment (one for each 8-channel group): ±1 V (±5 V)
  • Absolute max. input voltage: 6 Vpp (for 2 Vpp input range version) with Vrail max. to +6V or -6V for any DAC offset value
DIGITAL CONVERSION
  • Resolution: 12 bit
  • Sampling rate: up to 62.5 MS/s simultaneously on each channel (65 MS/s using external clock)
SYSTEM PERFORMANCE
  • ENOB: 11.20 (48 kS Buffer)
  • SINAD: 69.20 dB
  • THD: 87.10 dB
  • SFDR: 94.9 dB
  • SIGMA: 0.50 LSB rms (48 kS Buffer, open input)
ADC Sampling Clock generation

Three operating modes:

  • PLL mode: internal reference (62.5 MHz loc. oscillator)
  • PLL mode: external reference on CLK_IN
  • PLL Bypass mode: ext. clock on CLK_IN drives directly ADC clocks (Freq.: 10 ÷ 65 MHz)
DIGITAL I/O

CLK_IN (AMP Modu II):
– AC coupled differential input clock LVDS, ECL, PECL, LVPECL, CML(single ended NIM/TTL available by custom cable)
– Jitter < 100 ppm
TRG_IN (LEMO 50 Ω, NIM/TTL): external trigger input
GPI/GPO (LEMO 50 Ω, NIM/TTL): programmable front panel input/output

ACQUISITION MEMORY
  • 192k sample/ch (3 ms @ 62.5 MS/s) or 1.5M sample/ch (24 ms @ 62.5 MS/s) Multi-event Buffer divisible into 1 ÷ 1024 buffers
  • Independent read and write access
  • Programmable event size and pre/post-trigger
TRIGGER

Common Trigger:
– External (signal on TRG_IN)
– Software (by USB or Optikal Link)
– Self trigger (internal threshold self-trigger generated by each 8-channel group)
Daisy chain trigger propagation among boards (using GPO)

TRIGGER Time Stamp

31-bit counter, 16 ns resolution, 17 s range(*)
(*)Trigger Logic and Trigger Time Stamp counter operate at 125 MHz (i.e. 8 ns or 1/2 ADC clock cycles), while the counter value is read at a frequency of 62.5 MHz (i.e. 16 ns).

MULTI MODULES SYNCHRONIZATION
  • Clock distribution: by Fan Out
  • Trigger distribution: by Daisy chain or Fan Out
  • Time stamp synchronization
ADC AND MEMORY CONTROLLER FPGA

One Altera Cyclone EP3C16 per 16 channel

USB INTERFACE

USB2.0 compliant
Up to 30 MB/s transfer rate

OPTICAL LINK

CAEN CONET proprietary protocol Up to 80 MB/s transfer rate
Daisy‐chain: it is possible to connect up to 8 or 32 ADC modules to a single Optical Link Controller (respectively A2818/A4818 or A3818/A5818)

UPGRADE

Firmware can be upgraded via Optical Link or USB interface

SOFTWARE

General purpose C and LabView Libraries
Demo and Software Tools for Windows and Linux

ELECTRICAL POWER

Voltage range: 12 ± 10% Vdc. Power consumption (typ.): 1.9A @12V

Compare

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Accessories

A654
Cable assembly LEMO 00 male to MCX male – 1 m
A746E
Patch panel 32x LEMO 00 female to 1.27mm 68-pin ERNI SMC female
A659
Cable assembly BNC male to MCX male – 1 m
AI2700
Optical Fiber Series
A318
Adapter for Clock signal FISCHER S101A004 male to 3-pin AMPMODU IV female – 10 cm
A371
Adapter 2.54mm 34x2 pin male to 1.27mm 68-pin ERNI SMC female
A317
Cable assembly for Clock distribution 3-pin AMPMODU IV female terminations – 18 cm / 25cm
A4818
USB 3.0 to CONET2 Adapter

Ordering Options

Code Description
WDT5740CXAAA DT5740C - 10Vpp input 32 Ch. 12 bit 62.5MS/s Digitizer: 192kS/ch, EP3C16, SE   RoHS
WDT5740XAAAA DT5740 - 32 Ch. 12 bit 62.5 MS/s Digitizer: 192kS/ch, EP3C16, SE   RoHS

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