a pressure transducer apparatus including : first and second pluralities of piezoresistors each coupled in wheatstone bridge configurations , wherein the bridges are coupled together to provide a first output being indicative of a differential pressure ; and , a third plurality of piezoresistors coupled in a wheatstone bridge configuration and being suitable for providing a second output being indicative of an absolute line pressure . a compensator may be employed for adjusting the first output for line pressure variation responsively to the second output .