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PCA-8288, PCA-8688

The PCA-8288 and PCA-8688 cards are general-purpose analog outputs PCI Express cards offering additional I/O features.

The card provides eight isolated analog outputs, fitted alternatively with 12-bit or 16-bit D/A converters, and three 8-bit bidirectional digital ports, software configurable as input or output. Moreover, the power-up configuration of analog outputs and DIO ports can be easily modified by the software utility and stored into onboard EEPROM memory.

Although analog outputs work with a single range, they are equipped with freely configurable maximum and minimum limiters. As a result, each output can be configured for the required range.

The card also includes IRQ logic with interrupt sources derived not only from the internal timer, but from rising or falling edge of each digital port signal (i.e. 48 individually programmable interrupt sources).

The PCA-8x88 card is based on a FPGA unified core providing implementation of PCI Express bus and all peripheral circuitry, e.g. solution that gives maximum control and supervision over full functionality. High concentration of control algorithms within FPGA allows to add or modify functions without redesign the board.

All DAQ PCI Express cards are equipped CardID - two segment DIP switch that allows to recognise up to 4 cards (especially when installing multiple cards of the same type).

PCA-8288 and PCA-8688 diferences

PCA-8288: 8 analog outputs with 12-bit D/A converters
PCA-8688: 8 analog outputs with 16-bit D/A converters

All other features including isolation of analog outputs block are identical.

Standard and low-profile version

The cards are supplied in two versions - standard as PCA-8x88 and as PCA-8x88/LP. Except for the different I/O connectors (see the following paragraphs), all other features of both versions are identical.

In the case of a standard version, the analog outputs are accessible via the D-Sub 25 connector, first digital port via the D-Sub 9 connector then (PCE-8019 cable); both of them are located on the card mounting bracket. Next two digital ports are accessible via the PCE-16xx series adaptor (not included), using the card mounting bracket with two D-Sub 25 or D-Sub 9 connectors.

In the case of a low-profile version, the analog outputs are accessible via the D-Sub 25 connector located on the card mounting bracket. All three digital ports are accessible via the PCE-8025/LP adaptor (not included), using the card mounting bracket with one D-Sub 25.

Delivery details

The product packet includes the card and InfoCD with drivers and user manual.

Specifications

Type PCA-8288 (standard version)
PCA-8288/LP (low-profile version)
PCA-8688 (standard version)
PCA-8688/LP (low-profile version)
Analog outputs 8
DAC resolution 12-bit (PCA-8288)
16-bit (PCA-8688)
Output range ±10V
(configurable max./min. limiters for every outputs)
Output load 2kΩ min.
(5mA/channel & 20mA all outputs max.)
(sustained short-circuit proof)
Settling time 0.01ms typ.
Analog outputs
isolation voltage
1kVDC (600VDC when ESD-X1 used)
Isolation protection Surge arrester CG5-600L
(ESD-X1 option)
Number of digital inputs 24/16/8/0
(three 8-bit bidirectional ports, see digital outputs)
Digital inputs signal level TTL/HC
Number of digital outputs 0/8/16/24
(three 8-bit bidirectional ports, see digital inputs)
Digital outputs signal level TTL/HC
Interrupt sources EOS (end of the measurement sequence)
programmable FIFO flag
internal timer 1÷255ms
rising/falling edge of each digital port signal
Bus type PCI Express (x1, Gen 1)
I/O and MEM address,
Interrupt channels
assigned by PnP PCI BIOS
Dimensions approx. 56x128 mm
(low-profile version, or main board of standard version, see pictures above)