U-PAD2 - External USB A/D Converter
U-PAD2 - External USB A/D Converter
U-PAD2 is an external 24-bit A/D converter for the USB.
The U-PAD2 is a predecessor of the Colibrick A/D converter.
Discontinued from sale as of January 2013 .
U-PAD2 is an external 24-bit A/D converter that measures the voltages of detectors. Integration frequency up to 400 Hz enables Fast GC application.
U-PAD2 uses the USB communication channel and thus is directly powered from the PC. The unit can be connected or disconnected anytime without the necessity to switch the computer off. The input connector is compatible with all DataApex A/D converters.
Replacement options
Accessories:
- Cable p/n KB72
- USB cable p/n SK10
Specification
| U-PAD2 | |
| Converter type | 24 bit integrating, delta-sigma |
| Analog inputs | differential |
| Number of channels | 2 fully independent, isolated from USB, (inputs share common ground) |
| Input impedance | >1 MOhm |
| Input range | unipolar or bipolar, each channel independentely switchable to 156.26, 1 250 or 12 123 mV |
| Integration frequency (Sample Rate) | 6.25, 12.5, 25, 50, 100, 200, 400 samples per second for 50 Hz mains frequency filter 7.5, 15, 30, 60, 120, 240, 480 samples per second for 60 Hz mains frequency filter |
| Non-linearity | |
| Temperature dependence | |
| Digital inputs | 2 TTL (5 V) |
| Digital outputs | 2 TTL (5V, maximum current load 20 mA), also as relay contacts (switching contacts rating: max. switching current 0.5 ADC, max. contact resistance 150mOhm, max. voltage 100V) |
| Dimensions | 100 x 55 x 16 mm (w x h x d) |
| Weight | 110 g |
| PC interface | USB |
| Power supply | from the PC via the USB cable |
Typical noise free resolution for various acquisition speeds and input ranges:
| 12 123 mV | 1 250 mV | 156 mV | |
| 6.25 Hz | 21 bit | 21 bit | 20 bit |
| 25 Hz | 21 bit | 21 bit | 20 bit |
| 100 Hz | 19 bit | 19 bit | 19 bit |
Possible combinations:
| Windows 11 (64 bit) | Windows 10 (32 and 64 bit) | Windows 8.1 (32 and 64 bit) | Windows 7SP1* | |
| U-PAD2 | Clarity Clarity Lite both from version 8.7 | Clarity Clarity Lite both from version 6.2 | Clarity Clarity Lite both from version 4.0.3 | Clarity Clarity Lite both from version 2.5 |
* From Clarity (Lite) 3.0 the 64-bit OS is supported.
Combinations with obsolete operating systems
| Windows VistaSP2* | Windows XPSP3 | Windows 2000 | |
| U-PAD2 | Clarity, Clarity Lite both from version 2.5 until 7.2 | Clarity Clarity Lite both from version 2.4.4 to 7.4.1 | Clarity, Clarity Lite both from version 2.4.4 to 3.0 |
* From Clarity (Lite) 3.0 the 64-bit OS is supported.