The PCI-1800/1802 (L/H) is a family of high performance data acquisition board with 5V PCI bus. The PCI-1800/1802LU/HU card has a universal PCI interface supporting both 3.3 V and 5 V PCI bus. All the members in the PCI-1800 family have the same architecture; they feature a continuous A/D acquisition function of up to 330 kHz for low gain (44 kHz for high gain) under DOS and offer two 12-bit D/A output channels, 16 digital input channels and 16 digital output channels. The PCI-1800 series provides 16 single-ended or 8 differential inputs while the PCI-1802 series provides 32 single-ended or 16 differential inputs. In addition, an amazing A/D channel scan function called “MagicScan” is provided for users to easily implement multi-channel analog data acquisition applications. The specific MagicScan controller takes out most works of getting A/D value such as selecting channel, setting gain, settling time, triggering ADC and getting data. Even in channel scan mode, it can have different gain code for each channel, and the sampling rate can still reach 330 kS/s totally. The PCI-1800 series is suitable for high end applications.