PCI-bus mastering for data transfer
16 single-ended or 8 differential or combination analog inputs
12-bit A/D converter, with up to 1 MHz sampling rate
Pre-, post-, about- and delay-trigger data acquisition modes for analog input channels
Programmable gain for each analog input channel
Automatic channel/gain/SD/BU scanning
On-board FIFO buffer storing up to 1K samples for A/D and 32K samples for D/A Two 12-bit analog output channels with continuous waveform output function
Auto calibration for analog input and output channels
16 digital Input and output channels
Three 16-bit programmable multifunction counters/timers on 10MHz clock
The PCI-1712/L supports PCI-Bus mastering DMA for high-speed data transfer and gap-free analog input and analog output. By setting aside a block of memory in the PC, the PCI-1712/1732 performs bus mastering data transfers without CPU intervention, setting the CPU free to perform other, more urgent, tasks such as data analysis and graphic manipulation. The function allows users to run all I/O functions simultaneously at full speed without losing data.
On-board FIFO Memory:
The PCI-1712/L provides an on-board FIFO (First In First Out) memory buffer, storing up to 1K samples for A/D and 32K for D/A conversion (PCI-1712 only).
PCI-1712/L features an automatic channel/Gain/SD/BU scanning circuit. This circuit controls multiplexer switching during sampling in a way that is much more efficient than software implementation. Onboard SRAM stores different gain, SD and BU values for each channel. This combination lets users perform multi-channel high-speed sampling with different gain, with SD and BU values for each channel.
SD: Single-Ended/Differential Analog Input
BU: Bipolar/Unipolar
The PCI-1712/L provides two analog output channels. Both of them can perform continuous waveform output. The analog output can be up to 500kS/s for each analog output channel, or one can load a cyclic waveform into an on-board FIFO, which will continuously output the cyclic waveform. The on-board FIFO of the PCI-1712 can store 2 to 32K samples for the waveform output.
The PCI-1712/L is equipped with three programmable multifunction counters/timers, which can serve as a pacer trigger for A/D conversion. The counter chip is an 82C54 or equivalent, which incorporates three 16-bit channels on a 10 MHz clock. We enhance the gate and clock input function for more applications, event counting, pulse generation, duty cycle frequency generation, one shot, frequency measurement and pulse width measurement.