A monolithic signal isolator (for power convertors)

Abstract

The design and construction are described of a monolithic isolator, a two-port device designed to pass information across an isolated boundary for use in power convertor applications. Among its features are: high-voltage galvanic isolation blocking; passive sensing capability; wide dynamic range; large signal linearity; 1% precision; a large-signal 3 dB bandwidth from DC to 1.0 MHz; excellent common-mode rejection; small isolation bridging capacitance; industrial operating temperature range; low power consumption; and the capability of being monolithically integrated with other circuit functions.<>