Features

• Parallel designed, 4 high-speed 53Msps 12bit ADC and 4 independent programmable gain amplifier
• Voltage signal acquisition range from ±100mV to ±20V
• Maximum sampling rate up to 50Msps
• Refined sampling rate from 100sps to 50Msps
• Maximum sampling depth of each channel up to 16M
• High accuracy of measurement with phase consistency
• Dynamic download supporting remote dynamic upgrade service
• Triggering sources: software (manual), internal and external triggering
• Cascading multiple channels for system Integration

Application

• Transience signal record in engineering and laboratory
• High-speed acquisition with large capacity, sampling data analysis
• Multi-channel parallel acquisition system
• Time-Phase-sensitive Acquisition
• Refined frequency synthesis for acquiring in special engineering (DDS)

Overview

By adopting synchronous parallel design, four high-speed 53Msps 12bit ADC and   four independent programmable gain channel 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 ±100mV to ±20V; 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 PCI4712 A/D is 50Msps, and the advanced DDS signal synthesizer can achieve refined sampling rate in range of 100sps-50Msps，by which customer can set up and acquire signal under special engineering.

Each channel can separately control the gain setting with a range from ±100mV to ±20V divided into 8-level according to 1-2-5 factors. Maximum sampling depth of each channel can achieve up to 16Msa. The specially designed ring buffer facilitates pre-trigger sampling function, which is suitable for signal-shot recording of transience process of engineering. Delay of pre-trigger and post-trigger samples can cover the maximum acquisition period.

Triggering Sources

PCI4712 has many triggering sources, including software (manual), internal and external triggering. Internal triggering level can be set up freely within current range with options of triggering condition of rising edge, falling edge, internal dual-threshold, external dual-threshold; external signal compiles TTL level standard that may choose rising edge or falling edge is effective. Through setting multiple triggering modes, accurate capture of various characteristic signals can be guaranteed.

Digital Output

32-channel TTL level Digital I/O (16 DIs and 16 DOs) has been put into PCI4712 design, which can be used for digital quantity measurement and control within users’ system.

Clock Synchronization

The Acquisition card 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 source and triggering bus, several acquisition cards can integrate a full-synchronized system.

Dynamic Upgrade

PCI4712 adopts a Field Programmable Gate Array (FPGA) facilitating a high integrity and reliability. Acquisition controller (DAQCore) is dynamically downloaded from PCI bus interface when needed, and the acquisition card supports remote upgrade service by a latter design, which meets the special demands of testing-function, and time-sequence for the customer.

Specification

Characteristics

Operating System

• Sampling Rate (sps): 1k～40M
• A/D resolution: 12 bits
• Accuracy:  DC ±0.2%(FS)                                  AC ±0.5%(1kHz)
• Input channel: Parallel synchronous 4 channel
• Input impedance: 1MΩ//25pF
• Inter-channel phase difference: <1°(300kHz)
• Crosstalk: -95dB
• Voltage input: ±100mV to ±20V
• Bandwidth of input signal:
  DC: 0～15MHz      AC: 0.2～15MHz
• Memory depth of each channel (samples): 4M/CH(extended to 8M/CH、16M/CH)
• Triggering mode: manual, external and internal triggering. Internal triggering conditions includes rising edge and falling edge. The triggering level is adjustable.
• Digital output: 32-channel TTL level digit IO (16 DIs and 16 DOs)

• Windows 95/98/ME
• Windows 2000/XP

Software

• DasView2.0

Toolkit

• 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 Information

Model

Description

Model

Max. Rate(sps)

Memory Depth(sa)

I16IO

16-channel DI，16-channel DO Terminal Board

PCI4712

40M

4M/CH

I16REP

16-channel Power Relay Control Terminal Board

Note: Memory depth can be extended to 8M/CH or 16M/CH