The SPT5400 has eight 13-bit voltage output digital-toanalog converters on one chip. It operates from 5 V power supplies and has maximum voltage output swings of up to 4.5 V without the addition of external components. Novel circuit topology allows for a guaranteed monotonicity of 13 bits without the need for additional circuitry. The SPT5400 has four separate reference voltage inputs, one for each pair of DACs. Four separate