A/D Converter

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Артикул: DM34216HRПодобрать аналог
Производитель: RTD Embedded Technologies

DM34216HR. Купить DM34216HR a/d converter от RTD


The DM34216HR dataModule is a rugged high speed data acquisition (DAQ) module in the PCIe/104 format which boasts four 16-bit 25 MHz A/D converters.

This module provides 4 single-ended analog input channels with software-selectable input ranges and input impedances. Each input channel has a dedicated ADC, permitting simultaneous sampling of the inputs. Additionally, each channel also has a dedicated DMA channel, which ensures the ability for the host controller or a DSP to continuously collect data from all four channels across the PCIe x4 interfaces.

The DM34216HR also features 32-bit advanced DIO with peripheral output capabilities including a quad PWM and external clocking. The SyncBus permits multiple DAQ cards to be synchronized within the system.

When used with RTD’s SPM34CP high-performance DSP, data can be transferred directly to the DSP’s memory using a CPU’s PCIe connection.

Key Features

  • PC/104 form factor
  • PCIe/104 stackable bus structure
    • PCIe Type 2 expansion bus
    • PCIe x4 interface (Gen 2)
    • In-band interrupts and messages
    • Message Signaled Interrupt (MSI) support
  • Analog Inputs
    • 4 high-speed inputs with simultaneous sampling
    • Input sampling rate from 1–25 MSPS
    • 16-bit resolution
    • Single-ended inputs
    • Programmable 50 ohm or high impedance input
    • Programmable input full-scale ranges in bipolar mode: ±2.5V, ±1.667V, ±1.25V, ±0.833V, ±0.625V, ±0.4167V
      • Only available in high impedance mode: ±5V, ±3.3V
    • Programmable input full-scale ranges in unipolar mode: 0-5V, 0-3.3V, 0-2.5V, 0-1.67V, 0-1.25V, 0-0.8333V
    • Sampling modes and triggers are configurable independently
    • User registers permit capturing multiple variable width windows of data at different offsets
    • Threshold detection can generate an interrupt, or be used as a start or stop trigger
    • 4 MMCX connectors
  • SyncBus
    • Allows synchronization of the sampling clock on multiple boards
    • Allows synchronization of start and stop triggers on multiple boards
    • Software selectable Master/Slave
    • Software selectable termination
  • Selectable 10 Mhz Reference
    • Onboard
    • SyncBus Connector
    • MMCX connection for External Input
  • Digital I/O
    • 32 pins
    • Bit programmable direction
    • 5 V Tolerant TTL Signaling level
    • Advance Interrupt
      • Interrupt on Match, Change or Strobe
    • Peripheral Selectable Outputs
      • PWM
      • External Clocking
    • Parallel Bus Mode
    • Max output current 10 mA
  • Incremental Encoders
    • One Incremental Encoder channels
    • Single-ended or Pseudo-differential inputs
    • Variable frequency input filtering
    • 32-bit resolution
    • FIFO with DMA channel available for position sampling
  • Pulse Width Modulators
    • One Quad PWM output
    • Single-ended or Differential outputs
    • 32-bit resolution
    • FIFO with DMA channel
  • External Clocking
    • Provides 6 external clocks that can be configured as inputs or outputs
    • Can be used as external trigger
    • External gate provided for each clock input
  • On-board temperature monitor
  • Available in stackable, rugged enclosures
  • Requires only +5 VDC for operation

Connector Interface

  • Stackable Buses
    • PCIe Type 2 expansion bus
  • External I/O Connectors
    • 40-pin right-angle header
      • Digital I/O
    • 5 Vertical MMCX Connectors
      • 4 - Analog Inputs
      • 1 - External reference
    • 16-pin right-angle header
      • SyncBus
        • Three single-end or differential signals that can be user programmed as inputs or outputs (LVDS)
        • One master clock signal that can be user programmed as an input or output (LVDS)

Software & Example Programs

  • Includes software packages for the following Operating Systems:
    • Linux 3.x and 4.x kernels
  • Source code provided for easy porting to other platforms, including RTOSes.
  • Example programs with source code which demonstrate how to use primary features of the DM34216HR, including:
    • The A/D converters: Calibrating the ADCs, collecting continuous data or windows of data, setting and responding to interrupts, and use of the ADCs and DMA for high speed data acquisition to disk
    • Utilizing external clock inputs and outputs, and how to setup up programmable clock sources
    • aDIO connector configuration, using aDIO advanced interrupts, using DMA with aDIO
    • PWM and incremental encoder functionality
    • Simultaneous sampling of multiple ADCs on the DM34216HR
    • Synchronization of multiple boards with the SyncBus connector
    • How to read the onboard temperature sensor
  • Program to demonstrate DMA from the DM34216HR to RTD’s SPM34CP dspModule via PCIe/104 connector and a host CPU

Recommended Accessories

  • RTD's TI-based 1.25 GHz DSP Modules

Physical Attributes

  • Dimensions
    • Length (L): 3.775 inches (95.89 mm)
    • Width (W): 3.550 inches (90.17 mm)
    • Stand-off Height
      • Above the board: 0.866 inches (22.00 mm)
      • Below the board: 0.600 inches (15.24 mm)
  • Weight: Approximately 0.22 lbs. (0.10 Kg)
  • Standard Operating Temperature, 90% humidity non-condensing: -40 to +85°C
  • Storage Temperature: -55 to +125°C
  • Input Power Requirements: +5 VDC
  • Typical Power Consumption: 8.8 W
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