USB-1902USB DAQ module with 16-bit analog outputs
- Manufacturer
USB-1902 is a multifunction data acquisition module linked over USB, used in bench tests that call both for reading the signals and for generating the command voltages.
The high-impedance input, above 1 GΩ, cuts the loading effect on the source, with DC coupling. The module is powered from the USB bus and stays operational between 0 and 55 °C, so it calls for no dedicated power supplies on the test bench.
At a glance
- Channels: 16 channel
- ADC resolution: 16 bit
- Analog input range: ±10 V
- DAC resolution: 16-bit bit
- Analog output range: ±10 V
Technical specifications
| Digital I/O | 8 DI / 4 DO (TTL level)(out)8 DI / 4 DO (TTL level)(in) |
|---|
| Channels | 16 channel |
|---|---|
| Counter | 2× 32 bit (clock base 80 MHz, esterno fino a 10 MHz) |
| ADC resolution | 16 bit |
| Sampling rate | 250K samples/s (single channel); 250K/N-channel samples/s (scanning) kSps(aggregate) |
| Analog input range | ±10 V |
| DAC resolution | 16-bit bit |
| Analog output range | ±10 V |
| Input impedance | 1000000000– ohm |
| Input coupling | DC |
| Simultaneous sampling | No |
| Trigger modes | SoftwareExternal analog triggerExternal digital trigger |
| Acquisition specifications | Errore di offset ±0,1 mV, errore di guadagno ±0,05% FSR (gain=1)(accuracy)Ingressi digitali TTL: VIL ≤0,8 V, VIH ≥2,0 V (0,2 mA max)(range)Uscite analogiche: 2 canali, 16 bit, 1 MS/s (aggiornamento simultaneo), pilotaggio ±5 mA(output)Ingressi: 16 single-ended / 8 pseudo-differenziali(misc) |
| I/O protection | Overvoltage(power on+continuous · ± 15 V)Overvoltage(power off+continuous · ± 2 V) |
| Board function | Analog and digital I/O |
|---|---|
| Architecture standard | USB |
| Bus interface | High speed USB 2.0 compatible, mini-USB connectorProgrammed I/O, continuous (USB bulk transfer mode) |
| Power input | USB bus powered |
|---|---|
| Power consumption | 5 V @ 400 mA (USB bus powered) = 2 W |
| Dimensions | 41.3 × 114 × 156.5 mm |
|---|
| Operating temperature | 0–55 °C |
|---|---|
| Storage temperature | -20–70 °C |
| Operating systems | LinuxWindows |
|---|---|
| Driver & SDK | LabVIEW, C/C++, Visual Studio.NET, MATLAB |
Data extracted from the manufacturers' technical sheets: the official product spec sheet remains the reference for final confirmation.
Documentation
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