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Description
Overview
Essential details： PCI-DAS1602/16 Analog and Digital I/0 Board
The PCI-DAS1602/16 multifunction analog and digital 1/0 board sets a new standard for high performancedata acquisition on the PCI bus. This manual explains how to install and use the PCI-DAS1602/16 board.
The PCI-DAS1602/16 is a multifunction measurement and control board designed for the PCI bus. This boardcan be used for applications such as data acquisition, system timing, and industrial process control.
The PCI-DAS1602/16 board is completely plug and play, with no switches, jumpers or potentiometers to set.All board addresses and interrupt sources are set with software. You calibrate the board with software that usesprogrammable on-board digital potentiometers and trim D/A converters.
The PCI-DAS1602/16 provides the following features:
Eight differential or 16 single-ended 16-bit analog inputs
Sample rates of up to 200 kHz
24 bits of high-drive digital I/O
Three 16-bit down counters
100-pin high density I/O connectorTwo FIFO buffered 16-bit analog outputs with update rates of up to 100 kHz
Analog input ranges are selectable via software as bipolar or unipolar. Bipolar input ranges are +10 V, +5 V.+2.5 V and +l.25 V. Unipolar input ranges are 0 to 10 V, 0 to 5 V, 0 to 2.5 V and 0 to 1.25 V. The PCl-DAS1602/16 has an analog trigger input. The trigger level and direction are software configurable.
The PCI-DAS1602/16 board has two 82C54 counter chips. Each chip contains three 16-bit down counters thatprovide clock, gate, and output connections.
PCI-DAS1602/
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 PCI-DAS1602/16 Analog and Digital I/0 Board
Analog outputs
The two high-speed 16-bit dual analog outputs are updated via an on-board FIFO and REP OUTSWcommands. and provide a 100 kHz maximum update rate. Output ranges are individually configurable withsoftware for =l0 Y and +5 V, 0 to l0 Y and 0 to 5 V. The D/A outputs provide rated accuracy to +5 mA, andare short circuit protected (25 mA limit). The analog outputs are cleared to 0 V on power up or reset
Parallel digital I/O
The 24 bits of TTL-compatible, high-current (64 mA sink, 15 mA source) digital I/0 are available as two cightbit ports and two four-bit ports. This digital capability is an 82C55 mode chip emulation, which allows cachport to be configured independently as cither input or output. The digital I/0 ports default to the input state(high impedance) on power up or reset.
Counter/timer I/O
The PCI-DAS1602/16 provides two counter 82C54 counter chips. Each chip contains three 16-bit downcounters that provide clock, gate, and output connections. You can connect the counter clock to the on-board10 MHz crystal oscillator, or leave unconnected for user input.
