National Instruments provides vast variety of DAQ options which are based on LabVIEW, however they are way too expensive when it comes to opting option with high analog output channels (like 4). Can you please recommend a company/products which are less expensive with almost same features?
Hi Afaque Manzoor Soomro ,
depending on resolution and sample rate, perhaps this one is suitable:
https://www.velleman.eu/products/view/?id=369162
At the bottom of the page, at "Sales outlet" you can ask for a distributor near you. In Germany, prices are between € 100 and € 136.
The minimum refresh rate seems to be 2 ms:
https://forum.vellemanprojects.eu/t/refreshrate-of-the-vm140/6094
The cheapest option for that might be Arduino programmed for such functions (maybe using external I2C DACs) and delivering data via virtual COM port over USB.
I absolutely agree with the suggestion of Nikolay Pavlov for the low cost and also relatively simple to program. It depends on your requirements such as sample rate, resolution refresh rate for DAC and others. If the cost is the ultimate limitation. I would also suggest to use a general purpose 8 bit controller and use the 10bit ADC. If it is not sufficient use the separate module available such as below link. Similar D/A modules are also available. Developing own customised board would be the additional task which can be minimised in case of Arduino board as most of the codes are freely available online.
https://www.amazon.in/REES52-CD74HC4067-16-Channel-Multiplexer-Breakout/dp/B07FD4FWBF
Thank you very much for your response. I have already tried the Arduino based acquisition, however, we want the plug n play solution (same as DAQ by NI) which has its commercial software like LabVIEW.
I have found products of Measurement Computing but they are also expensive,(www.mccdaq.com)
From your explanation I suppose that you are more interested in the cards which will fit into motherboard slot such as PCIe. You are ultimately at the right place. Measurement Computing, MCC DAQ are relatively cheaper and provide drivers for almost all platforms. It can also be used with LabVIEW. They provide dedicated software such as DASYLab. But I personally prefer to use visual studio for programming DAQ cards which costs nothing but only studio.
All the best.
If you want firmware free USB DAQ you may consider use of USB-to-I2C interface like MCP2221 based, e.g.
Digi-Key Part Number ADM00559-ND
The I2C bus then allows to use I2C-based ADCs and DACs e.g.
quad DAC Digi-Key Part Number 1528-4470-ND
and ADC Digi-Key Part Number 1528-1014-ND
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