ACQ164CPCI: 64 channels, 24 bit simultaneous digitizer.

* Sample 64 simultaneous channels at 24 bit precision on one card. The new ACQ164CPCI intelligent digitizer card combines high channel density and high precision data acquisition. The card uses the new TI ADS1278 octal 24 bit ADC. The device combines high channel count with low power. As well as featuring the strong AC performance characteristic of delta sigma converters, with applications in audio, sonar and seismic arrays, uniquely this ADC also features good DC performance characteristics, it is highly accurate and therefore well suited to precision control applications, such as high voltage power supplies and high-energy magnets. The card is also a good alternative for traditional programmable gain amplifier + low resolution converter applications - it can be utilised as a 12 bit converter with a 1..4096 digital gain stage, with applications in strain gauge bridge monitoring in wind tunnel models. Another feature of the ADS1278 is high bandwidth, with a flat response to 0.45 Fsample, so that even with an Output Sample Rate of only 128kSPS, the device has as good bandwidth as competing 192 kHz converters with typical 0.3 Fsample filter cutoff. Low clock-jitter is critical to achieving high SNR, and ACQ164CPCI includes a high quality, low-jitter clock source. The card can also accept an external clock and/or synchronization trigger source. It's easy to scale up to hundreds of channels with shared clock and trigger on the PXIworld-compatible backplane. Each analog channel has a fully floating differential input, with overvoltage protection. ACQ164CPCI shares the intelligent digitizer platform used on other D-TACQ products, with local DDRAM memory up to 1GB and a Gigabit Ethernet connection to the front panel. The card can function standalone as a networked-system-on-a-card, as well as operate in system slot mode where it can take on a Programmable Automation Controller function. The card is typically controlled by high-level software running on a host computer using standard TCP/IP networking, no device driver required.

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