The 16-Bit CCVPX-16AI32SSC1M analog input board samples and digitizes up to 32 input channels simultaneously at rates up to 1 megasamples per second for each channel. Each input channel contains a dedicated 16-Bit sampling ADC, and the resulting sampled data is available to the VPX bus through a 1-MByte FIFO buffer.
Inputs can be sampled in groups of 2, 4, 16 or 32 channels; or any contiguous channel group can be selected for sampling. The sample clock can be generated from an internal rate generator, or by software or external hardware. Input ranges are software-selectable as ±2.5V, ±1.25V or ±0.625V.
An on-demand autocalibration feature determines offset and gain correction values for each input channel, and applies the corrections subsequently during acquisition. 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..