CH390

This is a dual channel, hermetically sealed optically coupled isolators. Each channel is composed of a Gallium Arsenide infrared emitting diode and a high gain photon detector. The high gain output stage features and open collector output providing both lower output saturation and higher speed of operation than is possible with conventional photodarlington type couplers.

The CH390 series are being used in environments encounted by space applications. Package styles for this device include 10-pin hybrid package with surface mount, solder dip option available. These packages have a shield effect to cut off ambient light as they are designed for high density mounting applications.

Therefore absolute maximum ratings, recommended operating conditions, electrical specifications and performance characteristics are identical for all units. Any exceptions, due to packaging variations and limitations, are as noted.