Generating Current or Voltage

You can generate two main kinds of signals for channels:

• Single samples, including DC signals—When generating single samples, you can use software or hardware timing (if available) to control when your device generates a signal.
• Multiple samples—Use multiple samples to generate an AC signal, such as a sine wave. Also called buffered analog output, generating multiple samples involves the following steps:
  1. Your application writes multiple samples into a buffer.
  2. All the samples in the buffer are then sent to your device according to the timing you specify. You can use software or hardware timing (if your device supports hardware timing) to control when your device generates a signal.

Note  Some current generation devices, such as the SCXI-1124, allow you to use either an internal or external current supply. The choice of supply is determined by the terminal connections used to connect the load to the device. If you plan to use an internal supply, connect the load to the terminals SUPPLY and ISINK. If you plan to use an external supply, join the supply and load to ISINK and GND. It is important to verify that the terminal connections are correct. In addition to proper connections, verify that the attached load does not exceed the capabilities of the device. Refer to your device documentation for more information.

Click here for more information about generating voltage.

Click here for more information about generating current.