Path: utzoo!attcan!uunet!cs.utexas.edu!wuarchive!mit-eddie!mintaka!allspice!mikec
From: mikec@allspice.lcs.mit.edu (Mike Ciholas)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Looking for serial A/D converter
Keywords: Serial A/D
Message-ID: <1990Oct22.144808.24187@mintaka.lcs.mit.edu>
Date: 22 Oct 90 14:48:08 GMT
References: <89100@aerospace.AERO.ORG>
Sender: daemon@mintaka.lcs.mit.edu (Lucifer Maleficius)
Organization: MIT Laboratory for Computer Science
Lines: 26

In article <89100@aerospace.AERO.ORG> slewis@aerospace.aero.org () writes:
>port at about 100 samples/sec. This will enable me to run
>an application we have developed on the LC.

Consider modifying a sound digitizer like the CSD or MacRecorder to do
this.  It has 8 bit resolution which may not be enough for your
application, but it does do 22254 samples per second.  It can be
easily modified to do fewer conversions (or you can ignore every nth
sample) and it can be made to accept a +/- 1 volt signal for full
amplitude down to DC.

The CSD kit is available from:

	CEDAR Technologies
	P.O. Box 224
	Dublin, NH 03444

for $45 plus $4 shipping and handling to US customers.  Write for
foreign ordering info.  A cable (not included) is $8 and a disk with
PD and shareware sound stuff (some with source code) is $5.

Disclaimer:  I am CEDAR Tech.

Mike Ciholas

mikec@lcs.mit.edu