.. _ain0-30_s:



Analog Input 0-30V

==================



Description

-----------



This feature is present on all several modules:



* :ref:`OI-Core<OI-Core>`/:ref:`OI-CoreLite<OI-CoreLite>` (x2)

* :ref:`OI-Discrete` (x2)



It enables the reading of conditioned voltage within the range of 0 to 30V, making it especially handy for monitoring supply voltage or sensor outputs.



.. note::

  When using these analog input, you have to take into account the low input impedance (4.8kΩ). 

  If the application need an a analog reading with high impedance and better precision, please check spec of :ref:`OI-AnalogLS` or :ref:`OI-Mixed`.



Characteristics

---------------



.. list-table:: Analog input specifications

   :widths: 33 33 33

   :header-rows: 1

   :align: center



   * - Requirements

     - Value

     - Remark

   * - Resolution

     - 12 bits

     - 

   * - Sampling frequency

     - 500Hz

     - Only 'oneshot' reading is supported

   * - Minimum input voltage

     - 0V

     - 

   * - Maximum input voltage

     - 30V

     - 

   * - Input impedance (Voltage mode)

     - 4.8kΩ

     - 

   * - Precision

     - 100mV

     -



Code examples

-------------



The example code above demonstrates how to read the voltage of an input on an :ref:`OI-Discrete` module.



.. literalinclude:: ../../examples/AINCore.cpp

    :language: cpp



Software API

------------



.. doxygenclass:: AnalogInputsHV

   :members: