Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!hplabs!hp-pcd!hpcvca!mjr
From: mjr@hpcvca.CV.HP.COM (Mark Reed)
Newsgroups: sci.electronics
Subject: Re: 3-10 MHz opto isolator
Message-ID: <3340006@hpcvca.CV.HP.COM>
Date: 17 Jul 89 21:15:08 GMT
References: <2202@radio.oakhill.UUCP>
Organization: Hewlett-Packard Co., Corvallis, Oregon
Lines: 27



 Checking my HP "Optoelectronic Designer's Catalog"  1988-1989

 The fastest I see with a cursory examination is the HCPL-2400
 "20 M Baud High CMR Logic Gate Optocoupler"

 It has a tri-state gate logic output, 4-8 mA input current,
 tr (typical) 20ns
 tf (typical) 10ns
 tPHL max 60ns
 tPLH max 60ns

 These specifications are from specific test circuits shown in the 
 book.

 The HCPL-2300 is slower, but still meets your tr, tf specs. with propagation 
 delays in the 100ns range.  It has an NPN output, so needs a pullup.

 The book contains lots more data which can be supplemented with the
 "Optoelectronics Applications Manual" (hardback, $$) 


 Disclaimer:  I do work for HP, but not in the optoelectronics division.
	      (just happened to have the data book handy)

 Mark Reed