Features

• Auto calibrate zero and channel gain
• The acquisition depth of each channel up to 1M samples
• USB2.0 interface: High transfer rate
• Easy to install and configure, hot-pluggable, automatically configure by system
• Easy to expand: Cascading measurement system with 16-64 channels easily
• Portable, Small, Light
• High A/D resolution

Application

• Field data acquisition 
• Parallel data acquisition for more channels
• Time correlation and phase difference sensitive acquisition

Overview

The data acquisition board is not only difficult to install, but also is easy to be interrupted by internal surroundings of cabinet. Because of the limitation of quantity and address of slots, interrupt resource and DMA; it cannot be connected with many devices. However, the USB will solve these problems well. IDTS-8516 can easily achieve multi-point data acquisition with low cost and high reliability.

By adopting synchronous parallel design, 8 high-speed 100ksps 16bit ADCs and 8 independent programmable gain channels composed of high speed precise operational amplifier and precise attenuation filter network are integrated into the card to achieve an voltage signal acquisition range from ±0.1V to ±100V. Gain errors and zero-bias of each channel can be removed independently by DAQ controller’s fine-tuning which facilitates this product with high measurement accuracy and phase consistency. No manual adjustable component insures the high reliability and stability of the product.

Analog Input

Maximum sampling rate of USB8516 A/D is 100ksps. Each channel can separately control the gain setting with a range from ±100mV to ±100V. Maximum sampling depth of each channel can achieve up to 2Msa. The specially designed ring buffer facilitates pretrigger sampling function, which is suitable for signal recording of transience process of engineering. Delay of pretrigger and post-trigger samples can cover the maximum period.

Triggering Source

USB8516 has wide range of triggering sources, including software (manual), internal and external triggering. Internal triggering level can be set up freely within current range with options of triggering conditions including rising edge, falling edge, internal dual-threshold, external dual-threshold; external signal complies with TTL electrical standard with options of effectiveness of rising edge and falling edge. Through setting multiple triggering modes, accurate capture of various characteristic signals can be guaranteed.

Clock Synchronization

The Acquisition instrument has designed the independent time base and the clock controller. While cascading multiple acquisition of system, each card may have different sampling rate. The trigger lines and clock lines of each board cascade through local bus connecter. Under the control of the unified clock and triggering, the acquisition system achieves the synchronized acquisition.

Specification

Characteristics

Operating System

• Sampling Rate (sps): 1k～100k
• A/D resolution: 16 bits
• Accuracy:  DC ±0.05%(FS)              AC ±0.5%(1kHz)
• Input channel: Parallel synchronous 8 channel
• Input impedance: 1MΩ//25pF
• Phase difference between channels: <1°(10kHz)
• Crosstalk: -106dB
• Analog input: ±100mV to ±100V
• Bandwidth of input signal:
  DC: 0～30kHz     AC: 0.2～30kHz
• Memory depth of each channel (samples): 1M/CH (extension to 2M/CH)
• Triggering mode: manual, external and internal triggering, in which, internal triggering can be divided into triggering of rising edge and falling edge with adjustable triggering level.
• Interface: USB interface, hot plug, plug-and-play, simple configuration
• Volume: 32cm×26cm×10cm
• Weight: 4Kg   

• Windows 95/98/ME
• Windows 2000/XP

Software

• DasView2.0

Tool Kits

• Provide DEMO source code under common development platforms and technical support for development.

Requirement on Environment

• Operating Temperature: 0℃ to 40℃
• Storage Temperature: -40℃ to 60℃
• Relative Humidity: 40℃ 20 to 90% (no condensation)

Accessory

Odering Informaiong

37-cores dual cascading line

Model

Max. Rate(sps)

Memory Depth(sa)

USB8516

100k

1M/CH

Note: Memory depth can be extended to 2M/CH