B u i l d i n g F o r w a r d To g e t h e r
USB-2405
4-CH 24-Bit 128kS/s Dynamic Signal Acquisition USB 2.0 Module
Features
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Hi-Speed USB 2.0
USB bus powered
24-bit Sigma-Delta ADC with built-in anti-aliasing filter
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
F ull auto-calibration
Supporting Time-Frequency analysis software -- Visual Signal
DAQ Express
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Introduction
The USB-2405 is a 24-bit high-performance dynamic signal
acquisition USB module equipped with 4 analog input channels
providing simultaneous sampling at up to 128 kS/s per channel.
The USB-2405 also features software-selectable AC or DC coupling
input configuration and built-in high precision 2 mA excitation
current to measure integrated electronic piezoelectric (IEPE)
sensors such as accelerometers and microphones.
The USB-2405 delivers high precision, DC and dynamic
measurement performance with very low temperature drift.
The onboard 24-bit Sigma-Delta ADC supports anti-aliasing filtering,
suppressing modulator and signal out-of-band noise and providing
usable signal bandwidth of the Nyquist rate, making it ideal for
high dynamic range signal measurement in vibration and acoustic
applications.
The USB-2405 supports digital and analog trigger sources and
flexible trigger modes, including post, delay, middle, gated, and
pre-triggering for efficient data acquisition with no need for post-
processing. The USB-2405 is USB bus-powered and equipped with
BNC connectors and removable spring terminals for easy device
connectivity.
Supported Operating System
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Windows 7/8 x64/x86, Linux, Mac OS
Software Utility
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U-Test
Ready-to-use functional testing utility
Visual Signal DAQ Express
Visualized signal process and analysis software
Ordering Information
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USB-2405
4-CH 24-Bit 128kS/s Dynamic Signal Acquisition USB 2.0 Module
Standard Shipped Accessories
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Driver and SDK
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4-pin removable spring terminal
2 M USB Type A to USB Mini-B cable with lockable connector
Module stand
Rail-mount kit
The installation USB flash drive for Visual Signal DAQ Express
LabVIEW, MATLAB, C/C++, Visual Basic, Visual Studio. NET
Optional Accessories
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USB-2M-L
2 M USB Type A to USB Mini-B cable with lockable connector
Product Illustration
AI 3
AI 2
AI 1
AI 0
DGND
GPIO 1
GDND
GPIO 0
USB-2405
• Bandwidth
-3dB bandwidth
AC cut-off frequency (-3dB)
AC cut-off frequency (-0.1dB)
• Flatness
Input Signal Frequency (fin)
20 Hz to 20 kHz
20 Hz to 46.4 kHz
• Crosstalk
Input Signal Frequency (f
in
)
1 kHz
46.4 kHz
• System noise
0.49 * sampling rate
0.4 Hz
2.4 Hz
Flatness
±0.01 dB
±0.15 dB
Crosstalk
-102 dB
-95 dB
Specifications
Analog Input
4 (simultaneous sampling)
24 Bit
Delta-sigma
1 kS/s to 128 kS/s
±10V
2k samples per channel
Differential or pseudo-differential
200 kΩ (between positive input and
Input impedance
negative input)
16.93 kΩ (Between
negative input and chassis ground)
Input coupling
AC or DC, software selectable
Integrated Electronic
Current: 2 mA or 0 mA, software
Piezoelectric
(IEPE)
selectable IEPE compliance: 24V
Over-voltage
±60V
protection
Input common
±10V
mode range
Trigger source
Analog or digital, software selectable
Post trigger, delay trigger, middle
Trigger mode
trigger, gated trigger, pre-trigger,
post or delay trigger with re-triggering
Programmed I/O, continuous (bulk
Data Transfer
transfer mode)
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Channels
ADC Resolution
ADC type
Sampling rate
Input range
FIFO buffer size
Input Configuration
Mode
AI Noise
High-Resolution (< 52.734 kHz)
50μVrms
High-Speed Mode
65μVrms
(52.734 kHz to 128 kHz)
• 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)
1 kHz
Dynamic range
100 dB
Digital Input / Output
Channels
Compatibility
Initial status
Input voltage
Output voltage
Over-voltage
protection
2 programmable function I/O
3.3V / TTL (single-ended)
Input (pull low)
Logic low: VIL = 0.8 V max; IIL = 0.2 mA max.
Logic high: VIH = 2.0 V min.; IIH = 0.2 mA max.
Logic low: VOL = 0.8 V max; IIL = 0.2 mA max.
Logic high: VOH = 2.0 V min.; IIH = 24 mA max.
-2V ~ +7V
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Static digital input/output
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Pulse output, max. frequency:4 MHz
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Frequency/Event counter, max.
frequency: 4MHz
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Digital trigger IN
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Synchronization sample clock IN
Programmed I/O
DC accuracy (25°C)
Supporting modes
Offset Error (mV)
Typical: ±0.15mV
Max. ±0.3mV
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Gain Error (%)
Typical: ±0.15%
Max. ±0.3%
Data Transfer
AC Dynamic Performance (typical, 25°C)
• THD, THD+N (Vin = 8.9 Vpk)
Note: Function I/O shares the same I/O pins, such that only one of these modes can
be selected at a time.
General Specifications
THD
-94 dB
-89 dB
-92 dB
-85 dB
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+N
-91 dB
-88 dB
-88 dB
-85 dB
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• CMRR
AC (20 Hz to 1 kHz)
60 dB
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I/O connector: Four BNC connectors and 4-pin removable
spring terminals
Operating temperature: 0 to 55°C (32 to 131˚F)
Storage temperature:-20 to 70°C (-4 to 158˚F)
Power requirements: 5V @ 400mA (USB bus powered)
Dimensions (not including connectors and stand):
115mm (W) x 150 mm (D) x 40 mm (H) (4.5” x 5.91” x 1.57”)
Relative humidity: 5% to 95%, non-condensing
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All products and company name listed are trademarks or trade names of their respective companies.
Updated Oct. 5, 2016. ©2016 ADLINK Technology, Inc. All Rights Reserved.
All specifications are subject to change without further notice.
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