The AD7994/AD7993 provide a two-wire serial interface which is compatible with I2C interfaces. The parts come in two versions, AD7994-0/AD7993-0 to AD7994-1/ AD7993-1. Each version allows for a minimum of two different I2C addresses. The I2C interface on the AD79940/AD7993-0 supports Standard and Fast I2C Interface Modes. The I2C interface on the AD7994-1/AD7993-1 supports Standard, Fast and two High-Speed I2C Interface Modes.