PCI66-18AI32SSC1M - 32-ch, 1MS/s 18-bit, analog input PCI board

Main features

  • 32 Differential Analog Inputs with dedicated 1.0MSPS SAR 18-Bit ADC per channel
  • Exceptional combination of precision, throughput and channel density on PMC Simultaneous Sampling of all inputs
  • minimum data skew Sampling rates from zero to 1.0 MSPS per channel (32 MSPS aggregate rate)
  • True Differential inputs minimize input noise and system interference
  • Input ranges: +/-10V, +/-5V, +/-2.5V
  • software-selectable 256 K-Sample FIFO data buffer
  • SAR (successive approximation) ADCs provide true simultaneous sampling without a minimum sample rate limitation
  • D32; 66MHz/33MHz PCI compatibility, with universal 5V/3.3V signaling
  • 2-Channel DMA engine supports both block and demand mode DMA transactions
  • Exist in PCIe, PCI, cPCI/PXI, PC104 and PMC
Price request Datasheet Ask a question

The PCI66-18AI32SSC1M analog input board samples and digitizes up to 32 input channels simultaneously at rates up to 1,000,000 samples per second for each channel. Native conversion resolution is available as either 18 bits or 16 bits. Data on native 18-Bit boards can be configured as either 16 or 18 bits. Each input channel contains a dedicated successive-approximation (SAR) ADC, the sampled data from which is error-corrected and routed to the PCI bus through a 1-MByte FIFO buffer. The 32-Bit local data path supports full D32 local-bus data packing for 16-Bit data. Throughput performance is further enhanced with 66MHz PCI support. All operational parameters are software configurable.

Inputs can be sampled in groups of 2, 4, 8, 16, or 32 channels, or any contiguous channel group can be designated for acquisition. The sample clock can be generated from an internal rate generator, or by software or external hardware. Input ranges are software-selectable as ±10V or ±5V, or optionally as ±2.5V or ±1.25V. Continuous background calibration can be invoked at lower sample rates.

An on-demand autocalibration feature determines offset and gain correction values for each input channel, and applies the corrections subsequently during acquisition. For low sample rates, below 750SPS, continuous autocalibration can be invoked to minimize both short-term and long-term drift errors. A selftest switching network routes calibration reference signals to each channel through internal selftest switches, and permits board integrity to be verified by the host.

PCI-18AI32SSC1M 32-ch, 1MS/s 18-bit, analog input PCI board