News and New Products

Receiver shoots fiber to TTL at 5 Mbps

By Bill Schweber -- EDN, 5/26/2005

Targeting use in data-communication and control applications, the 5-Mbps HFD3023 optical detector from Honeywell provides a TTL-compatible interface for short-distance, 850-nm fiber links and standard-diameter optical fibers (Picture). According to product support manager Ian Anderson, the 5V device in a hermetic TO-46 package incorporates “a monolithic IC with integral photodiode and amplifier circuit,” followed by an open-collector Schottky-transistor output. The $14 (1000) unit has a typical sensitivity of 2 μW (–27 dBm) and includes a mechanically centered 0.024-in.-diameter microlens ahead of the 0.006-inch-diameter photodiode to optimize photon capture and consequent efficiency.

Honeywell International, www.honeywell.com.