I have to design a cuff that extracts the blood pressure waveform from a patient's wrist. The pump that I have to use to pressurize the cuff needs to be driven by an NI module(a part of the Signal Conditioning Circuit maybe?). The pump that I found that does work needs 320 mA to be driven. Is there a module that could provide that kind of current? Where can I find that amount of current that these modules can provide?
What sort of signal are you looking for? It sounds like what you are looking for is a power supply for your pump. Is that correct? If this is the case, a DIO device may not really be what you are interested in. There are a few power supply options within the PXI form factor that you may be interested in (PXI-4130). However, I am not sure this is quite what you are looking for. Perhaps a better description of what type of device and signal you are looking for would be helpful.