Process Characteristics and Design Methods for a 300°C Quad Operational Amplifier

The components of a dielectricly isolated complementary vertical bipolar process selected for optimum high-temperature performance are characterized over the temperature range 25° to 300°C. High-tempeature parameters which pose special design problems are noted and methods for overcoming the problems are described. A quad operational amplifer designed using these methods is presented and the performance of that design in integrated form is described. Reliability results are presented.