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The suitable IC for medical devices: Bipolar or CMOS?

Posted: 20 Jun 2011 ?? ?Print Version ?Bookmark and Share

Keywords:bipolar? CMOS? Mixed-signal?

Designers of medical applications have to make the right decision in terms of competing requirements for power, noise, linearity, reliability, and cost. They, like developers of other electrical systems, need to carefully choose the process and design architectures based on these requirements.

This article compares bipolar and CMOS devices and will help you decide where each is applicable. Using a high-performance ultrasound device as an example, we explore the balance among noise, power, chip area, and integration.

Power dissipation is critical in several battery-operated applications; in such applications CMOS process technology is a great choice. However, the balance between leakage and performance is critical and gates the choice of the technology. Mixed-signal integration is also a key requirement for such applications.

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