The Advantages and Limitations of Linear-Compatible Integrated Injection Logic for Automotive Electronics

The performance and cost advantages of custom integrated circuits for automotive electronics have been established. The most effective design technique for a particular application may encompass both linear and digital custom ICs. A bipolar design technique that is used to advantage in combining both linear and digital functions on the same chip is called linear-compatible Integrated Injection Logic (I²L). This paper describes several automotive applications for linear-compatible I²L custom ICs. Advantages and benefits, as well as limitations, are discussed and illustrated with actual chip development efforts. The paper concludes with a discussion of advanced development programs utilizing this technique to enhance future product design.