Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
test-and-measurement:guides:waveforms-waveform-generator [2024/02/28 19:21] – [Prerequisites] James Colvintest-and-measurement:guides:waveforms-waveform-generator [2024/02/28 19:56] (current) – Add ADP2230 Support Arthur Brown
Line 79: Line 79:
 ---- ----
 == BNC Oscilloscope Probes == == BNC Oscilloscope Probes ==
-//If your Digilent Test and Measurement device supports BNC cables, then select your device below for instructions on setting up a loopback with them.//+//If your Digilent Test and Measurement device supports BNC cables, select your device below for instructions on setting up a loopback with them.//
  
---> Analog Discovery 3 with BNC Adapter #+--> Analog Discovery 3 or Analog Discovery 2 with BNC Adapter #
 <WRAP group> <WRAP column half> <WRAP group> <WRAP column half>
 Connect the [[test-and-measurement:bnc-adapter-board:start|BNC Adapter]] to the Analog Discovery 3, as shown in the image to the right. Next, connect BNC cables to the Test and Measurement device's Oscilloscope Channel 1 BNC Connector and Wavegen Channel 1 BNC Connector. Connect the cables' probes to one another. Check the input probe's attenuation factor, as it will be used later to set up the software. Connect the [[test-and-measurement:bnc-adapter-board:start|BNC Adapter]] to the Analog Discovery 3, as shown in the image to the right. Next, connect BNC cables to the Test and Measurement device's Oscilloscope Channel 1 BNC Connector and Wavegen Channel 1 BNC Connector. Connect the cables' probes to one another. Check the input probe's attenuation factor, as it will be used later to set up the software.
  
-**Note:** //For this demo, both ground wires were not connected together, because the Oscilloscope channel shares the same ground as the Wavegen channel. While BNC Probes are single-ended (as is the Waveform Generator hardware), a connected circuit must still share a common ground with the device. No more than one ground should be connected, in order to avoid the creation of ground loops, which may damage your device.//+**Note:** //For this demo, the Scope and Wavegen ground wires are not connected because the two channels share the same ground. While BNC Probes are single-ended (as is the Waveform Generator hardware), a connected circuit must still share a common ground with the device. No more than one ground should be connected, to avoid the creation of ground loops that may introduce excess noise to measurements.//
  
-**Note:** //When using BNC Probes, make sure to take note of the probes' bandwidth. When probes are used with an oscilloscope, the achievable bandwidth is limited by both the probes and by the scope. For example, using 1 MHz probes will limit the bandwidth to 1 MHz, even if that is below the Test and Measurement device's specified maximum.//+**Note:** //When using BNC Probes, make sure to take note of the probes' bandwidth. When probes are used with an oscilloscope, the achievable bandwidth is limited by both the probes and the scope. For example, using 1 MHz probes will limit the bandwidth to 1 MHz, even if it's below the Test and Measurement device's specified maximum.//
 </WRAP> <WRAP column half> </WRAP> <WRAP column half>
 {{:test-and-measurement:analog-discovery-3:analog-discovery-3-bnc-hw-setup.png?600|}} {{:test-and-measurement:analog-discovery-3:analog-discovery-3-bnc-hw-setup.png?600|}}
Line 103: Line 103:
 Connect BNC cables to the Test and Measurement device's Oscilloscope Channel 1 BNC Connector and Wavegen Channel 1 BNC Connector. Connect the cables' probes to one another. Check the input probe's attenuation factor. Connect BNC cables to the Test and Measurement device's Oscilloscope Channel 1 BNC Connector and Wavegen Channel 1 BNC Connector. Connect the cables' probes to one another. Check the input probe's attenuation factor.
  
-**Note:** //For this demo, both ground wires were not connected together, because the Oscilloscope channel shares the same ground as the Wavegen channel. While BNC Probes are single-ended (as is the Waveform Generator hardware), a connected circuit must still share a common ground with the device. No more than one ground should be connected, in order to avoid the creation of ground loops, which may damage your device.//+**Note:** //For this demo, the Oscilloscope and Wavegen ground wires are not connected because they share the same ground. While BNC Probes are single-ended (as is the Waveform Generator hardware), a connected circuit must still share a common ground with the device. No more than one ground should be connected, to avoid the creation of ground loops that may introduce excess noise to measurements.//
  
-**Note:** //When using BNC Cables, make sure to take note of the probes' bandwidth. When probes are used with an oscilloscope, the achievable bandwidth is limited by both the probes and by the scope. For example, using 1 MHz probes will limit the bandwidth to 1 MHz, even if that is below the Test and Measurement device's specified maximum.//+**Note:** //When using BNC Cables, make sure to take note of the probes' bandwidth. When probes are used with an oscilloscope, the achievable bandwidth is limited by both the probes and the scope. For example, using 1 MHz probes will limit the bandwidth to 1 MHz, even if it's below the Test and Measurement device's specified maximum.//
  
 **Note:** //The Analog Discovery Studio's Wavegen BNC connectors are DC coupled and have an output impedance of 75Ω.// **Note:** //The Analog Discovery Studio's Wavegen BNC connectors are DC coupled and have an output impedance of 75Ω.//
Line 122: Line 122:
 <-- <--
  
---> Analog Discovery 2 with BNC Adapter #+--> Analog Discovery Pro (ADP2230) #
 <WRAP group> <WRAP column half> <WRAP group> <WRAP column half>
-Connect the [[test-and-measurement:bnc-adapter-board:start|BNC Adapter]] to the Analog Discovery 2, as shown in the image to the right. Next, connect BNC cables to the Test and Measurement device's Oscilloscope Channel 1 BNC Connector and Wavegen Channel 1 BNC Connector. Connect the cables' probes to one another. Check the input probe's attenuation factor, as it will be used later to set up the software.+Connect a BNC oscilloscope probe to the Analog Discovery Pro's Oscilloscope Channel 1 connector and a set of BNC minigrabbers to its AWG Channel 1 connector. Connect these as pictured, to form a loopback circuit. Check the input probe's attenuation factor, as it will be used later to set up the software.
  
-**Note:** //For this demo, both ground wires were not connected together, because the Oscilloscope channel shares the same ground as the Wavegen channel. While BNC Probes are single-ended (as is the Waveform Generator hardware), a connected circuit must still share a common ground with the device. No more than one ground should be connected, in order to avoid the creation of ground loops, which may damage your device.//+**Note:** //For this demo, the Scope and AWG ground wires are not connected because the two channels share the same ground. While BNC Probes are single-ended (as is the AWG hardware), a connected circuit must still share a common ground with the device. No more than one ground should be connected, to avoid the creation of ground loops that may introduce excess noise to measurements.//
  
-**Note:** //When using BNC Probes, make sure to take note of the probes' bandwidth. When probes are used with an oscilloscope, the achievable bandwidth is limited by both the probes and by the scope. For example, using 1 MHz probes will limit the bandwidth to 1 MHz, even if that is below the Test and Measurement device's specified maximum.//+**Note:** //When using BNC Probes, make sure to take note of the probes' bandwidth. When probes are used with an oscilloscope, the achievable bandwidth is limited by both the probes and the scope. For example, using 1 MHz probes will limit the bandwidth to 1 MHz, even if it's below the Test and Measurement device's specified maximum. To take full advantage of a probe's bandwidth, the 10X attenuation setting should be used.//
 </WRAP> <WRAP column half> </WRAP> <WRAP column half>
-{{:learn:instrumentation:tutorials:analog-discovery-studio-oscilloscope:analog-discovery-2-bnc-hw-setup.png?nolink&600|}} +{{/test-and-measurement/analog-discovery-pro-2230/adp2230-external-loopback.png|}}
-</WRAP> </WRAP> +
- +
-<WRAP group> <WRAP column half> +
-Take note of the jumpers that select between 0 or 50 Ohm output impedance on the BNC adapter. Either setting will work for the loopback circuit used here, however, some applications may find one or the other more useful. +
-</WRAP> <WRAP column half> +
-{{:learn:instrumentation:tutorials:waveforms-waveform-generator:analog-discovery-2-output-impedance.png?nolink&600|}}+
 </WRAP> </WRAP> </WRAP> </WRAP>
 <-- <--
Line 142: Line 136:
 --> Analog Discovery Pro (ADP3450/ADP3250) # --> Analog Discovery Pro (ADP3450/ADP3250) #
 <WRAP group> <WRAP column half> <WRAP group> <WRAP column half>
-Connect a BNC oscilloscope probe to the Analog Discovery Pro's Oscilloscope Channel 1 connector and a set of BNC minigrabbers to its Wavegen Out Channel 1 connector. Connect these together, as pictured, to form a loopback circuit. Check the input probe's attenuation factor, as it will be used later to set up the software.+Connect a BNC oscilloscope probe to the Analog Discovery Pro's Oscilloscope Channel 1 connector and a set of BNC minigrabbers to its Wavegen Out Channel 1 connector. Connect these as pictured, to form a loopback circuit. Check the input probe's attenuation factor, as it will be used later to set up the software.
  
-**Note:** //For this demo, both ground wires were not connected together, because the Oscilloscope channel shares the same ground as the Wavegen channel. While BNC Probes are single-ended (as is the Waveform Generator hardware), a connected circuit must still share a common ground with the device. No more than one ground should be connected, in order to avoid the creation of ground loops, which may damage your device.//+**Note:** //For this demo, the Scope and Wavegen Out ground wires are not connected because the two channels share the same ground. While BNC Probes are single-ended (as is the Waveform Generator hardware), a connected circuit must still share a common ground with the device. No more than one ground should be connected, to avoid the creation of ground loops that may introduce excess noise to measurements.//
  
-**Note:** //When using BNC Probes, make sure to take note of the probes' bandwidth. When probes are used with an oscilloscope, the achievable bandwidth is limited by both the probes and by the scope. For example, using 1 MHz probes will limit the bandwidth to 1 MHz, even if that is below the Test and Measurement device's specified maximum.//+**Note:** //When using BNC Probes, make sure to take note of the probes' bandwidth. When probes are used with an oscilloscope, the achievable bandwidth is limited by both the probes and the scope. For example, using 1 MHz probes will limit the bandwidth to 1 MHz, even if it's below the Test and Measurement device's specified maximum. To take full advantage of a probe's bandwidth, the 10X attenuation setting should be used.//
 </WRAP> <WRAP column half> </WRAP> <WRAP column half>
 {{reference:test-and-measurement:guides:wavegen_and_scope.jpg?nolink&600}} {{reference:test-and-measurement:guides:wavegen_and_scope.jpg?nolink&600}}
Line 154: Line 148:
 --> Analog Discovery Pro (ADP5250) # --> Analog Discovery Pro (ADP5250) #
 <WRAP group> <WRAP column half> <WRAP group> <WRAP column half>
-Connect a BNC oscilloscope probe to the Analog Discovery Pro's Oscilloscope Channel 1 connector and the BNC minigrabbers to the AWG Channel 1 connector on the front of the ADP5250. Connect the opposite ends together, as pictured, to create a loopback circuit. Also, connect both ground leads together. Check the input probe's attenuation factor, as it will be used later to set up the software.+Connect a BNC oscilloscope probe to the Analog Discovery Pro's Oscilloscope Channel 1 connector and the BNC minigrabbers to the AWG Channel 1 connector on the front of the ADP5250. Connect these as pictured, to form a loopback circuit. Check the input probe's attenuation factor, as it will be used later to set up the software.
  
-**Note:** //While BNC Probes are single-ended (as is the Waveform Generator hardware), a connected circuit must still share a common ground with the device. No more than one ground should be connected, in order to avoid the creation of ground loops, which may damage your device.//+**Note:** //For this demo, the Scope and AWG ground wires are not connected because the two channels share the same ground. While BNC Probes are single-ended (as is the Waveform Generator hardware), a connected circuit must still share a common ground with the device. No more than one ground should be connected, to avoid the creation of ground loops that may introduce excess noise to measurements.//
  
-**Note:** //When using BNC Probes, make sure to take note of the probes' bandwidth. When probes are used with an oscilloscope, the achievable bandwidth is limited by both the probes and by the scope. For example, using 1 MHz probes will limit the bandwidth to 1 MHz, even if that is below the Test and Measurement device's specified maximum.//+**Note:** //When using BNC Probes, make sure to take note of the probes' bandwidth. When probes are used with an oscilloscope, the achievable bandwidth is limited by both the probes and the scope. For example, using 1 MHz probes will limit the bandwidth to 1 MHz, even if it's below the Test and Measurement device's specified maximum.//
 </WRAP> <WRAP column half> </WRAP> <WRAP column half>
 {{:test-and-measurement:guides:img_7470.jpg?nolink&600 |}} {{:test-and-measurement:guides:img_7470.jpg?nolink&600 |}}
 </WRAP> </WRAP> </WRAP> </WRAP>
 <-- <--
 +
 ---- ----
 <WRAP group> <WRAP group>