제품소개

Features
▷ Hi-Speed USB 2.0
▷ USB bus powered
▷ 24-bit Sigma-Delta ADC with built-in anti-aliasing filter
▷ 2 or 4-ch simultaneous sampling analog inputs, up to 128kS/s
▷ AC or DC input coupling, software selectable
▷ Analog or digital triggering
▷ Supports 2mA excitation output on each analog input channel
    for IEPE sensor measurement
▷ Full auto-calibration
▷ Supporting Time-Frequency analysis software -Visual Signal
▷ Supported Operating System: Windows 7/8 x64/x86, Linux, and 
    MAC (Call for availability)

Specification & Introduction

 Analog Input
▷ Channels 
    2 or 4 (simultaneous sampling)
▷ ADC Resolution
    24-bit
▷ ADC type
    Delta-sigma
▷ Sampling rate 
    1 kS/s to 128 kS/s
▷ Input range 
    ±10V
▷ FIFO buffer size 
    8kS across all channel
▷ Input Configuration 
    Differential or pseudo-differential
▷ Input impedance
    200 kΩ (between positive input and
    negative input) 16.93 kΩ (Between 
    negative input and chassis ground)
▷ Input coupling 
    AC or DC, software selectable
▷ Integrated Electronic Piezoelectric (IEPE)
    Current: 2 mA or 0 mA, software
    selectable IEPE compliance: 24V
▷ Over-voltage protection 
    ±60V
▷ Input common mode range 
    ±10V
▷ Trigger source 
    Analog or digital, software selectable
▷ Trigger mode
    Post trigger, delay trigger, middle
    trigger, gated trigger, pre-trigger, 
    post or delay trigger with re-triggering
▷ Data Transfer 
    Programmed I/O, continuous (bulk
    transfer mode)
 DC accuracy (25°C)
▷ Offset Error (mV)
    Typical: ±0.15mV 
    Max. ±0.3mV 
▷ Gain Error (%)
    Typical: ±0.15%
    Max. ±0.3%
 AC Dynamic Performance (typical, 25°C)
    THD, THD+N (Vin = 8.9 Vpk)
▷ Input configuration
    Differential 
    Pseudodifferential 
▷ Input Signal Frequency (fin)
    20 Hz to 20 kHz 
    20 Hz to 46.4 kHz
    20 Hz to 20 kHz 
    20 Hz to 46.4 kHz
▷ THD 
    -94 dB
    -89 dB
    -92 dB 
    -85 dB
▷ THD+N
    -91 dB
    -88 dB
    -88 dB
    -85 dB
▷ CMRR
    AC (20 Hz to 1 kHz)
    60 dB
▷ Bandwidth
    -3dB bandwidth                   0.49 * sampling rate
    AC cut-off frequency (-3dB)           0.4 Hz
    AC cut-off frequency (-0.1dB)         2.4 Hz
▷ Flatness
    Input Signal Frequency (fin)              Flatness
    20 Hz to 20 kHz                               ±0.01 dB
    20 Hz to 46.4 kHz                            ±0.15 dB
▷ Crosstalk
    Input Signal Frequency (fin)             Crosstalk
    1 kHz                                            -102 dB
    46.4 kHz                                         -95 dB
▷ System noise
    Mode                                                         AI Noise
    High-Resolution (< 52.734 kHz)          50μVrms
    High-Speed Mode
    (52.734 kHz to 128 kHz)                          65μVrms
▷ SFDR (Vin = -1 dBFS)
    Input Signal Frequency (fin)                 SFDR
        1 kHz                                                  104 dB
▷ Dynamic Range (Vin = -60 dBFS, fs=102.4kS/s)
    Input Signal Frequency (fin)                Dynamic range
        1 kHz                                                         100 dB

Ordering Information

▷ USB-2405/S
    4-CH 24-Bit 128kS/s Dynamic Signal Acquisition USB 2.0 Module
▷ USB-2405/2AI
    2-CH 24-Bit 128kS/s Dynamic Signal Acquisition USB 2.0 Module
▷ USB-2405/OEM
    4-CH 24-Bit 128kS/s Dynamic Signal Acquisition USB 2.0 Module, 
    OEM board-level version, no enclosure