Analog Discovery Pro 2440 / 2450 - High-Performance Digital Oscilloscopes With Pattern Generator Capability
Debugging modern mixed-signal systems requires test equipment capable of providing both stimulus and analysis functionality. With the 2440/2450 family, Digilent offers highly portable devices that are ready for the circuit challenges of the future.
Packaged in a stunning metal housing, these portable oscilloscopes are highly robust. Thanks to a 5 Gbps-capable USB-C port, connecting them to PCs or process computers such as the Raspberry Pi is easy. The metal housing can be mounted to a DIN rail if an ATE scenario is required.
Digital and analog stimulus generation included
The Analog Discovery Pro provides more than oscilloscope functionality. A dedicated BNC connector at the front of the scope offers an arbitrary waveform generator. It has a ±5V output capability and a border bandwidth north of 15MHz, and is backed by a 125MS/sec 14-bit DAC.
In addition, the unit has 16 bidirectional digital input/output pins. These can be used for both logic analyzer and pattern generator operation, and support a sample rate of up to 1.2 GS/s.
Dual-Traction-Capable Oscilloscope
Analog Discovery Pro units provide advanced trigger interfaces. The outputs at the back can be used to interconnect two oscilloscopes, creating an eight-channel oscilloscope with 32 I/O interfaces and two arbitrary waveform generators.
Eight- or twelve-bit oscilloscope options available
Metrologists can choose from two SKUs that offer a trade-off between bandwidth and ADC bit depth. SKU 2440 (aka 410-436-1) provides a 200 MHz bandwidth via eight-bit ADCs, while the 2450 (aka 410-436) model has four 100 MHz channels connected to a 12-bit ADC.
As shown in the figure, the remaining capabilities are shared across both product lines.
Designers can furthermore order NI 790821-01 or 790822-01 to purchase DIN rail mounting kits.
Digilent SKUs 240-136 and 240-134 provide breakout cables for connecting the arbitrary waveform generator to a device under test.
Advanced Software Options for Complete Measurements
Digilent's collaboration with Emerson has led to a large software ecosystem. The main measurement software is available for Linux, Mac OS, and Windows. It makes good use of the various integrated input and output capabilities. It can, for example, be used to create Bode plots, perform impedance analysis, and even display a voltmeter view (!!!).
Custom software can be developed using the WaveForms SDK, which supports C/C++, Python, C#, and Visual Basic. Further information and programming samples can be found at https://digilent.com/reference/software/waveforms/waveforms-sdk/start.
Conclusion
Thanks to the rich I/O capabilities, the Digilent 2440 and 2450 shine in both benchtop and automated test equipment applications. If the device under test requires both stimulus and analysis, these oscilloscopes provide a one-stop shop for the entire measurement. Finally, portability means the units can be easily shared across divisions or used as a travel or vacation oscilloscope.