USB-1208HS Series

The USB-1208HS is a high speed general purpose DAQ device that supports analog (voltage) I/O, digital (TTL) I/O, timer output, and counter input. In general, temperature sensors require signal conditioning which the USB-1208HS does not support. Please contact us for assistance with finding a product for your application.

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The digital I/O on the USB-1208HS is software polled (system dependent) and is NOT supported by the onboard hardware pacer. High speed digital transfers and updates are not supported and can vary based on CPU usage.

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The USB-1208HS is not designed based on an industry standard form factor. The form factor for the PCB and the enclosure can be located at: https://www.mccdaq.com/pdfs/drawings/USB-1208HS.pdf

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The maximum resolution for the USB-1208HS series is 13 bits. In order to realize the 13 bits of resolution there is one condition. The USB-1208HS will need to be configured for differential inputs. The USB-1208HS series supports both single ended and differential analog inputs. When setup for differential inputs the USB-1208HS supports 13 bits of resolution for the following software selectable input ranges; +-20V, +-10V, & +-5V. When set for single ended inputs the resolution is reduced to 12 bits for the following input ranges; +-10V, +-5V, +-2.5V, & 0-10V. If we use your example below and set the USB-1208HS to single ended and +-2.5V you would have an LSB of 1.22mV.

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Individual channel mode settings is not a supported feature on the USB-1208HS Series. Only individual channel gains can be set. For individual channel mode settings, take a look at our USB-1808 Series at https://www.mccdaq.com/data-acquisition-and-control/simultaneous-daq/USB-1808-Series.aspx

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Hello, The USB-1208HS-xAO supports concurrent A/D and D/A operations at its maximum supported sample rate.

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Once you call DConfigBit to configure the direction of a single bit (or said a better way, once you mix the direction of bits in the digital port), then you can no longer call the port-wise functions (DOut or Din). Instead, call DBitOut or DBitIn, which are the bit-wise functions.As for cbGetCofig, the following works properly (returns the value 16, which is the number of DIO bits on the USB-1208HS series devices): InfoType = DIGITALINFO = 3 DevNum = 0 ConfigItem = DINUMBITS = 6

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The USB-1208HS series’ timer outputs will continue to run (outputting the number of pulses at the frequency and duty cycle you requested) until you stop It via a software call. So perhaps you don’t need to write out to the timer as often as you say (< 1 mS). If you do have to, the typical write time is around 0.5 to 1.0 mS. This can be done concurrent to an A/D scan at up to 1 MHz aggregate (note that the A/D data arrives to your program in packets, with a new packet about every 10 mS. If you need fresh A/D data sooner, you could perform a software paced read instead of a scan, which will take 0.25 to 0.5 mS per channel, but won’t be concurrent with the timer access (timer access would have to slow to access the A/D). Thus what you are asking for is very close to the best performance we can expect, so it could not be guaranteed on all systems. Also, we don’t offer a Delphi header file or examples with our Universal Library API. But Delphi, as with any language that can call a DLL, could be used with some effort.

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The creation of the CB.CFG file by InstaCal is required, but is not normally of concern to users. You are probably on Windows 7 or 8, on which the location of CB.CFG is under a hidden Windows folder named ProgramData. You can unhide that folder using Windows Explorer. Below is an FAQ on this topic: http://kb.mccdaq.com/KnowledgebaseArticle50432.aspx

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The USB-1208HS Series will support concurrent A/D and D/A operations. A better choice would be our USB-1808 Series for synchronous operation.

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Analog signals/sensors output within a defined range i.e. +-10 or +-5. Having selectable input ranges built into our DAQ devices gives you the capability to choose the input range that best fits your signal. When using our ULx support for NI LabVIEW the input ranges would be selected through the “Create Channel” vi. The most efficient way (when using our ULx drivers for selecting your input range) would be to specify a min and max input value and let our ULx drivers select the “Best” range for your signal that our DAQ device supports.

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Hello Ariel, Yes, with the USB-1208HS-4AO you will be able to sample 1 analog input channel at 1 MS/sec.

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Hello Laura - The shipping weight for the USB-1208HS-4AO is approximately 1.2 lbs. The shipping box dimensions are 12.25” x 9.06” x 2.81” and the product dimensions are 5.00” x 3.53” x 1.40”

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