The B-Train integrator is a 2 differential channel 2MSPS 18 bit ADC card in FMC (FPGA Mezzanine Card) format. It uses an LPC VITA57 connector. The gain can be set by hardware (default = 1). A gain & offset self-calibrating function is also implemented. This function uses a 1ppm 20-Bit DAC (AD5791) as a reference and can be programmed as a differential voltage source. The card also includes 8 input/output LVDS pairs and a 10-bit port digital IO where each single-bit port can be configured individually as input or output. The I/Os that are on micro-HDMI connectors are TTL or LVDS compatible.