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Data acquisition compact flash card : CF241

40KSPS 24-bit 4-Channel ADC, 12-bit 2-Channel DAC, DIO Multifunction DAQ Compact Flash Card - CF241

The CF241 sets a new standard in miniaturized Data Acquisition cards, having exceptional features in a tiny TypeII format Compact Flash format.  The card combines 24-bit A-to-D inputs with 12-bit D-to-A outputs and a host of digital features more commonly associated with full-size plug-in PCI DAQ boards.  To simplify software development the CF241 uses an industry standard register set allowing it to be supported by built-in Operating System drivers and thus avoiding the need for customized kernel level support.

Technical Features

Chip 24-bit 40KSPS Sigma-Delta ADC, with system sampling rates up 38.4KSPS.  Superb SFDR of over 120dB.  Up to 4 analogue inputs are available with 0 to 2.5V input range and over-voltage protection.  Built in channel scan logic and data rate decimation for ADC settling when in multi-channel mode
Chip Up to two 12-bit DACs (low speed type) with 0 to 2.5V output swing and series current limit protection
Chip Up to 4 Digital I/O lines with series current limit protection
Chip Flexible front-end architecture allows over 10 different combinations of analogue inputs, analogue outputs and digital I/O to be selected and routed to 9-pin interface connector
Chip A-to-D data flows into a large 8KSample FIFO on-card.  The FIFO can be run in continuous streaming mode (throughput is PC speed dependent) but can also serve as a capture buffer for triggered acquisitions. This is similar to a digital storage oscilloscope, with level and edge triggering against a digital 8-bit threshold in hardware, and programmable pre or post triggering to allow waveform capture before/after a trigger event
Chip 16-bit counter / timer can use DIO line as input for PERIOD, FREQUENCY or PULSE WIDTH measurements using built in timing reference generators with 7 decades of adjustment
Chip DIOs can output timing reference signals
Chip Power and 2.5V reference is available at the edge connector for signal conditioning, powering sensors, load cells, bridges etc
Software Card comes with Elan's Card Center Pro software with kernel driver and data handling module, plus a top level Win32 GUI with source code to act as a starting point for your own development.  Full hardware register data is provided to allow exact tailoring for bespoke applications
Software Drivers for DOS, Win9x, Me, NT4, 2000, XP.  Windows CE and PocketPC support also included.
Software Automatic O.S. recognition and configuration.  Hot swappable CF+ compliant TypeII design
Power consumption Low power consumption: Typical 37mA at 5V fully active, with support for reduced power sleep modes of typ. 27mA, 12mA and 7mA at 5V under host application software control.  At 3.3V figures are 42mA, 24mA, 7mA and 4mA respectively 
Power consumption Works at 3.3V and 5V, and can be used in laptops using a CF to PCMCIA adapter (sold separately)
Electrostatic discharge Input and output channels can withstand voltages up to +15V/-10V with the card powered or not
Cable options Supplied with 300mm Type46 cable.  Connector latches into CF Card for security. DB9 Male with female screwlocks for attachment to terminal equipment
Cable options Also available with robust direct cable termination instead of Type46 cable, product code CF241R. MOQ may apply

*DOS support requires Card and Socket Services e.g. SystemSoft or Award

More Information / To Purchase

The CF241 is available from C-Cubed Ltd, Elan's partners in it's development,  sold as a complete package with C-Cubed's data acquisition software suite for Windows CE under the brand name 'DATAQ'.  For more information please see the C-Cubed web site or contact them directly.