L-780M MULTIFUNCTIONAL ADC/DAC BOARD WITH DSP > ADC/DAC boards with PCI/PCI Express

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ADC/DAC boards with PCI/PCI Express
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L-780M MULTIFUNCTIONAL ADC/DAC BOARD WITH DSP

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작성자최고관리자 댓글 0건 조회 29회 작성일 19-03-09 20:19

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Purpose
ADC : 14 비트 / 400kHz
입력 채널 : 16 개 차동 또는 32 개 "공통 접지"
디지털 신호 프로세서
디지털 입력 / 출력 : 16/16
PCI 5.0V 카드 (5.0V 애드 인 카드)
Features
2 채널 DAC (옵션)

 실시간 디지털 처리가 가능한 PC와 아날로그 및 디지털 신호의 입출력을위한 범용 보드.


옵션으로 DAC를 설치할 수 있습니다.


보드상의 신호 프로세서는 ADC 및 DAC 동작의 타이밍 및 동기화를 수행하고 듀얼 포트 RAM을 통해 PC와의 버퍼링 및 데이터 교환을 구성합니다.


다중 채널 데이터 수집 중 채널 전환은 자동이며 임의의 채널 선택 순서와 이득이 있습니다.


ADC와 DAC의 FIFO 버퍼의 일부가 채워질 때 인터럽트를 생성 할 수 있습니다.

 

L783-interface.JPG

ADC
Number of channels 16 differential or 32 with "common ground"
Resolution 14 bits
Effective resolution 
(input signal - 10 kHz sine / 4,9V)
13,3 bits (conversion frequency is 300 kHz)
Input impedance (at single-channel mode) Not less than 1 MOhm
Input signal measuring sub-ranges ± 5 V, ±1,25 V, ±0,3 V, ±0,08 V
Maximum conversion frequency 400 kHz
Synchronization
  • Internal
  • By external synchro-signal
  • By analog signal level
Inputs protection ± 25 V (power on)
± 10 V (power off)
Inter-channel interference -70 dB (input signal - 10 kHz sine with output source impedance less than 1 kOhm)
Digital signal processor
Type ADSP 2185M
Sample rate 29,5 MHz
Internal data RAM 16 Ksamples
Internal program RAM 16 Ksamples
FIFO-buffer 512 - 14336 samples
Data exchange speed via PCI bus
Referring to the board registers through the I/O ports Up to 1,2 Mbps
Referring to the board registers through PC memory Up to 10 Mbps
DAC (option)
Number of voltage outputs with common ground 2
Resolution 12 bits
Setting time 8 μs
Output range ±5 V
Output current, no more than 2 mA
Digital inputs and outputs
Number of inputs 16 parallel, asynchronous
Number of outputs 16 parallel, asynchronous with common resolution outputs
Type of logic CMOS (74 НСТ), TTL-compatible
Dimensions       170x105 mm

DESCRIPTIONS

  • l7xx_programmers_guide.pdf (filesize: 2 260 604 bytes, date: 22.10.2007)

    DOS Programmer's Guide for L-780 and L-783 PCI boards in Adobe Acrobat format.

  • l7xx_users_guide.pdf (filesize: 2 268 313 bytes, date: 18.01.2019)

    User’s Guide for L-780 and L-783 PCI boards in Adobe Acrobat format.

LGRAPH2 SOFTWARE PACKAGE

  • lgraph2.zip (filesize: 26 642 003 bytes, date: 18.02.2019)

    LGraph2 is a free multi-channel data recorder for Windows. Version 2.35.00 provides the possibility of simultaneous data visualization and recording from the ADCs: L-502, L-780M, L-783, L-791, E-502, E14-140, E14-140M, E14-440, E-154, E20-10, LTR11, LTR114, LTR27, LTR212, LTR216, LTR22, LTR24, LTR25, LTR51. It requires an updated version of the LComp driver (from version 01.04.2010) and ltrserver (no lower than 1.5.2.1).

SOFTWARE FOR WINDOWS

  • lcomp.exe (filesize: 6 498 112 bytes, date: 12.01.2018)

    Beta version. LCOMP library for Windows XP/Vista/Win7/Win8/Win10 32 and 64-bit versions with drivers. The installer and drivers are digitally signed. The library is built on the basis of modern WDM-drivers rewritten on WDF. It includes the WDM driver itself for L-CARD hardware, the DLL library with source code, programming examples, electronic description, etc. The LCOMP library provides support for almost the entire range of products: PCI boards, USB modules. ISA support is excluded.

    The library includes “L-Graph I” software. L-Graph I supports the following devices: L-1450, L-761, L-780, L-783, L-791, E14-140, E-154 and E14-440. Files recorded by L-Graph I can also be read and processed using the demo-version of PowerGraph v.3.X.

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