MAX20326 Dual Precision Bus Accelerator Analog Devices MAX20326 Dual Precision Bus Accelerator is a dual-channel, precision, open-drain, communication-line accelerator. The device provides the acceleration from a low-to-high transition necessary to allow faster data transfer in a highly capacitive, multidrop node system. The Analog Devices MAX20326 is optimized for the I2C and a 1-Wire® bus, where a high-speed, open-drain operation is often required with a highly capacitive load.