Patent ID: 7540196

Claim:
A die header for a pressure transducer apparatus comprising: a first set of terminal apertures on a tap surface of said die header and extending to a rear surface of said die header; a second set of terminal apertures on said top surface of said die header also extending to said rear surface, said second set of terminals surrounding a differential pressure port opening which opening extends from said top surface to said rear surface; terminal pins inserted into said terminal apertures to extend from said top surface and directed to said rear surface and to extend beyond said rear surface; a first pressure transducer die positioned on said top surface of said die header and connected to said first set of terminal pins; a second pressure transducer positioned on said top surface of said die header and connected to said second set of terminals, each of said pressure transducer dies having a deflectable diaphragm having located thereon pressure responsive sensors, which vary resistance according to an applied pressure; and a differential pressure tube extending from said differential port opening of said die header, wherein when a first pressure is applied to a main pressure port opening both said first and second pressure transducer die receive said first pressure, and when a second pressure is applied to a differential port only said second pressure transducer receives said pressure, so that said first pressure transducer provides an output indicative of the absolute value of said first pressure with said second transducer providing an output indicative of the difference between said first pressure and said differential pressure.