USB-1901/1902/1903 8/16-CH 16-Bit 250 kS/s Multi-Function USB DAQ Modules Introduction The ADLINK USB-1900 series provides a range of USB 2.0-based multi-functional DAQ modules. The USB-1901 and USB-1902 16-bit 250 kS/s USB 2.0-based high-performance DAQ modules allow four different voltage input ranges, while the USB-1903 features additional built-in precision current-tovoltage resistors capable of direct measurement of current signal from 0 to 20 mA. The USB-1900 series is USB bus powered and equipped with removable screw-down terminals for easy device connectivity. The attached multi-functional stand can be used for desktop, rail, or wall mounting. Suitable for mixed-signal tests, laboratory research, and factory automation, the USB-1900 series provide a simple measurement solution at an affordable price. Features ■ ■ ■ ■ ■ ■ ■ ■ ■ USB 2.0 high-speed function USB bus power Removable screw-down terminal module Lockable USB cable for secure connectivity 16-CH 250 kS/s voltage input (USB-1901/1902) 8-CH 250 kS/s current input (USB-1903) 2-CH 1 MS/s voltage output (USB-1902/1903) Analog and Digital triggering Free testing application included (U-Test) ■Operating Systems • Windows 7/Vista/XP ■Driver Support • UD-DASK for VB.NET/VC.NET/VB/VC++/BCB/Delphi • DAQPilot for LabVIEW™ • DAQ-MTLB for MATLAB® Standard Shipped Accessories • One pair of 20-pin removable screw terminals • Module stand • 2 M USB Type A to USB Mini-B cable with lockable connector • Rail-mount kit Pin Assignment USB-1901/1902 ECLK 20 40 AOTG* NC 19 39 NC 18 GPO3 USB-1903 ECLK 20 40 AOTG AITG NC 19 39 AITG 38 GPI7 NC 18 38 GPI7 17 37 GPI6 GPO3 17 37 GPI6 GPO2 16 36 GPI5 GPO2 16 36 GPI5 GPO1 15 35 GPI4 GPO1 15 35 GPI4 GPO0 14 34 GPI3 GPO0 14 34 GPI3 DGND 13 33 GPI2 DGND 13 33 GPI2 AGND 12 32 GPI1 AGND 12 32 GPI1 *AO1 11 31 GPI0 AO1 11 31 GPI0 *AO0 10 30 DGND AO0 10 30 DGND AGND 9 29 AISE AGND 9 29 AISE AI7(AIL3) 8 28 AI15(AIL7) CI3- 8 28 CI7- AI6(AIH3) 7 27 AI14(AIH7) CI3+ 7 27 CI7+ AI5(AIL2) 6 26 AI13(AIL6) CI2- 6 26 CI6- AI4(AIH2) 5 25 AI12(AIH6) CI2+ 5 25 CI6+ AI3(AIL1) 4 24 AI11(AIL5) CI1- 4 24 CI5- AI2 (AIH1) 3 23 AI10(AIH5) CI1+ 3 23 CI5+ AI1 (AIL0) 2 22 AI9(AIL4) CI0- 2 22 CI4- AI0(AIH0) 1 21 AI8(AIH4) CI0+ 1 21 CI4+ * Not available for USB-1901 Ordering Information ■USB-1901 16-CH 16-Bit 250kS/s Analog Input USB DAQ ■USB-1902 16-CH 16-Bit 250kS/s Multi-Function USB DAQ ■USB-1903 8-CH 16-Bit Current Input Multi-Function USB DAQ 2-7 www.adlinktech.com Optional Accessories ■RST-20P One pair of 20-pin removable screw terminals ■USB-2M-L 2 M USB Type A to USB Mini-B cable with lockable connector USB DAQ Specifications Model Name USB-1901 USB-1902 USB-1903 Analog Input Resolution Number of channels 16-bit 16 SE / 8 Pseudo-diff, voltage input Maximum sampling rate (single channel) 8 Current inputs 250 kS/s(Multiplexing, channel-gain-queue) Programmable gain 1, 5, 10, 50 1 Input range (Voltage) ± 10 V, ± 2 V, ± 1 V, ± 200 mV N/A Input range (Current) Offset error ± 0.1 mV (gain=1) Gain error ± 0.05% of FSR (gain=1) N/A 0-20 mA ±0.01 mA (typical) -3dB small signal bandwidth (gain=1) ±0.05% of FSR (typical) 600 kHz CMRR (gain=1) 90 dB - SFDR (gain=1) 108 dB - SINAD (gain=1) 89 dB - THD (gain=1) 102 dB - SNR (gain=1) 89 dB - ENOB (gain=1) 14.5-bit - FIFO buffer size 4 k samples Trigger sources Software, external digital, analog trigger ( from one of analog input channels) Trigger mode Post trigger, delay trigger, retrigger, gate trigger External conversion source Yes (up to 250 kS/s) Input coupling DC Overvoltage protection Input impedance Continuous ± 24 V High impedance > 1 GΩ Data transfer 249.5 Ω (input resistor) Programmed I/O, continuous (USB bulk transfer mode) Analog Output Number of channels N/A Resolution - 2 voltage outputs 16-bit Maximum update rate - 1 MS/s (simultaneous update) Output range - ± 10 V Offset error - ± 0.15 mV Gain error - ± 0.05% of FSR INL - ≦1 LSB DNL - < 1 LSB Output driving capacity ± 5 mA Slew rate - 2.2 V/μs Settling time (0.1% of Full scale) - 26 μs Rising time - 6 μs Falling time - 6 μs FIFO - 10 k samples (2-CH sharing) Output mode - Programmed I/O, continuous (USB bulk transfer mode) Function I/O Mode* Digital I/O General timer/counter Pulse generation Digital I/O, general timer/counter, pulse generation 8 DI / 4 DO (TTL level) Two 32-bit, base clock: 80 MHz, external to 10 MHz Two PWM outputs (Modulation frequency: 0.01 Hz to 5 MHz; Duty cycle: 1%-99%) General Specifications Interface I/O connector Operating temperature Storage temperature Relative humidity Power requirements Dimensions USB 2.0 high speed, mini-USB connector Two 20-pin screw terminals 0 to 55°C -20 to 70°C 5 to 95% non-condensing 5V@400 mA (USB bus powered) 114 mm (H) x 156.5 mm (L) x 41.3 mm (W) (4.5 x 6.16 x 1.63 in.) (without connector and stand) Note: The function I/O share the same I/O pins. Only one of these modes can be selected. Updated 03-28, 2012. ©2012 ADLINK Technology, Inc. All Rights Reserved. All specifications are subject to change without further notice. www.adlinktech.com 2-8