LTR210 Oscillographic ADC module with sampling rate up to 10 MHz

Oscillographic ADC module with sampling rate up to 10 MHz
  • Two independent 14 bits ADC channels with a sampling rate up to 10 MHz and frame-by-frame data acquisition
  • Module memory up to 16 million samples (0.8 seconds at two-channel 10 MHz input)
  • DC cutoff mode
  • ADC inputs (1 MΩ) are compatible with a standard oscilloscope probe (BNC).

Designed for building multi-channel recording systems with a sampling rate up to 10 MHz. LTR210 can be used for a wide range of tasks for multichannel oscillographic analysis of fast-flowing physical processes, for multichannel recording and measurement of transients using a given synchronization condition. When installing up to 16 LTR210 modules into the LTR crate, you can get up to 32 synchronous channels of oscillographic data acquisition!

LTR210 has 2 channels of analog input and one synchronization line with 2 connectors used as input, output and for serial connection to the synchronization circuit of several LTR210.

Start-stop mode is supported with an ADC conversion frequency up to 10 MHz and streaming mode of data collection up to 500 thousand samples per second.

ADC
Number of channels 2 parallel independent channels
Sync channel Single digital
Resolution 14 bits
Programmable (independently for both channels) voltage measurement subbands ±10 V, ±5 V, ±2 V, ±1 V, ±0,5 V
Conversion frequency From 39 kHz to 10 MHz
ADC input modes (programmable independently for both channels) "0" (measurement of own zero)
"AC" (DC cutoff mode)
"DC + AC" (normal mode - without DC cutoff)
Bandwidth at the "AC" mode 0,8 Hz… 10 MHz
Bandwidth at the "DC+AC" mode 0 Hz… 10 MHz
The main, reduced to the measurement subband, relative error of DC voltage measurement ±0,2 % 
 
Maximum allowable voltage range at the input of the ADC ±20 V
Input resistance 1.00 MΩ ± 1% (compatible with standard oscilloscope probe)
Signal to noise ratio of ADC input on a sine wave signal of 1 kHz (typical value) 74 dB (at the sub-bands of "±10 V", "±5 V")
77 dB (at the sub-bands of "±2 V", "±1 V", "±0.5 V")
Interchannel interference in ADC channels Not detected (in the study range up to 120 dB)
Synchronization system event settings
- Analog (by event of transition through the programmable voltage threshold - synchronization level)
- Digital (by the front/down of the digital signal at the synchronization input)
- Software single-shot
- Periodic, with a programmable period of up to 1 hour with a setting interval of 1 μs
- From another LTR210 module (by any event) or from an external TTL-signal source via synchronization connector
Features of the "multifunction digital input / synchronization input-output" as a standard digital input At any mode, the current logical state of the input is written to the buffer memory together with the ADC samples. Thus, the third data acquisition channel is implemented as from a standard digital input.
Buffer memory size 16 million samples of ADC data (at a frequency of 10 MHz it is enough to input 0.8 seconds with two-channel mode and for 1.6 seconds with single-channel mode)
Data acquisition modes - Single-frame to internal memory (maximum sample rate is 10 MHz)
- Continuous (the maximum sample rate, depending on the LTR crate, is from 100 kHz to 250 kHz with dual-channel mode, and up to 500 kHz - with single-channel mode)
Types of connectors BNC
Power consumption 4,2 W
Galvanic isolation of ADC input The ADC inputs are galvanically isolated from the ground and the LTR crate case, but the common-wire circuits of the inputs of both ADC channels are not isolated from each other
Galvanic isolation of multifunction digital input / synchronization input-output No, the common wire circuit of this input/output is connected to the LTR crate case

Connection example for multi-module synchronization

Hardware description, purpose and possible options for connecting signals are given in the User's Guide.

Descriptions

  • ltr210api_en.pdf (filesize: 596 617 bytes, date: 15.02.2018)

    LTR210 module. Programmer's Guide.

  • ltrapi_en.pdf (filesize: 604 618 bytes, date: 15.02.2018)

    Ltrapi basic library. Programmer's Guide.

  • ltr_cross_sdk_en.pdf (filesize: 551 553 bytes, date: 13.02.2018)

    Description of the software for Windows, Linux, FreeBSD and QNX.

  • ltr_en.pdf (filesize: 11 066 427 bytes, date: 25.12.2017)

    LTR modular DAQ system. User's Guide (revision 3.1.0).

    • General characteristics and principles of construction
    • Working with LTR crate
    • Overview of LTR crate architecture
    • LTR11 ADC module
    • LTR212 (M) strain measurements modules
    • LTR27 measuring module
    • LTR41, LTR42, LTR43 digital I/O and synchronization modules
    • LTR51 frequency meter module
    • LTR22 ADC module
    • LTR24 (-1, -2) ADC modules
    • LTR25 ADC module
    • LTR34 DAC module
    • LTR35 DAC module
    • LTR114 ADC module
    • LTR210 ADC module
    • LTR00 Dummy module
    • Low-level programming of LTR-EU crate
    • Specification
  • ltr_soft_getting_started_en.pdf (filesize: 269 974 bytes, date: 13.02.2018)

    Starting to work with DAQ system LTR. Questions about the software.

Software for Windows

  • lcomp.exe (filesize: 6 498 080 bytes, date: 20.03.2019)

    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.

  • ltrd-setup.exe (filesize: 1 462 392 bytes, date: 18.12.2018)

    The ltrd service. Version 2.1.7.0. Provides communication with LTR crates. It is a replacement for the LTRserver software while maintaining the compatibility of the program interface. ltrd is designed for the same purpose as LTRserver, but it is a service that runs when the system is started. The graphical interface to the service is provided by a separate LTR Manager program.

    Attention! Only one of the programs ltrd or LTRserver can work at a time.

  • ltrdll.exe (filesize: 1 238 560 bytes, date: 26.08.2019)

    Libraries for working with LTR crates and modules. Version 1.32.10.

  • ltrmanager_setup.exe (filesize: 7 971 712 bytes, date: 13.12.2018)

    LTR Manager software. Version 1.5.2. Graphical interface to the ltrd service. Provides an interface similar to the LTRserver interface when working through the ltrd service.

Contacts

Phone: +7 (495) 785-95-19
Fax: +7 (495) 785-95-14

Sales department: en@lcard.ru
Technical support: en@lcard.ru

5 Varshavskoye shosse, corp. 4, build. 2
Moscow 117105
Russian Federation

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