제품소개

Features
● USB 2.0 high-speed
● USB bus powered
● 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
● Removable screw terminal on module
● Lockable USB cable for secure connectivity
● Ready-to-use testing application (U-Test) provided
● Supported Operating System: Windows 7/10 x64/x86, Linux

Specification & Introduction
Analog Input
● Resolution 
    16-bit
● Number of channels 
    16 SE / 8 Pseudo-diff, voltage input 8 Current inputs
● Maximum sampling rate (single channel) 
    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) 
    N/A 0-20 mA
● Offset error 
    ± 0.1 mV (gain=1) ±0.01 mA (typical)
● Gain error 
    ± 0.05% of FSR (gain=1) ±0.05% of FSR (typical)
● -3dB small signal bandwidth (gain=1) 
    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     
    Continuous ± 24 V
● Input impedance 
    High impedance > 1 GΩ 249.5 Ω (input resistor)
● Data transfer 
    Programmed I/O, continuous (USB bulk transfer mode)
 Analog Output
● Number of channels 
    N/A 2 voltage outputs
● Resolution - 
    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 
    8 DI / 4 DO (TTL level)
● General timer/counter 
    Two 32-bit, base clock: 80 MHz, external to 10 MHz
● Pulse generation 
    Two PWM outputs (Modulation frequency: 0.01 Hz to 5 MHz; Duty cycle: 1%-99%)
 General Specifications
● Interface 
    USB 2.0 high speed, mini-USB connector
● I/O connector 
    Two 20-pin screw terminals
● Operating temperature 
    0 to 55°C (32˚F to 131˚F)
● Storage temperature 
    -20 to 70°C (-4˚F to 158˚F)
● Relative humidity 
    5 to 95% non-condensing
● Power requirements 
    5V@400 mA (USB bus powered)
● Dimensions 
    114 mm (H) x 156.5 mm (L) x 41.3 mm (W) (4.5” x 6.16” x 1.63”)
    (without connector and stand)

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