Yes another but it is 10bit, and 11 Channel.
The hard work is done by the ADC itself the MC145050.
It has all the multiplexors, sample and hold, ADC, serial control on
one chip.
The only other real bit is done by the REF25Z, thats a 2.5V reference
for the ADC.
Its all powered from a couple of data lines driven HIGH.
The file here are:
readme.txt This
file.
parts_list.txt
The very short parts list.
adc11scm.gif The circuit
diagram in GIF format.
adc11pcb.gif A suggested
PCB layout in GIF format.
adc11.bas(.txt)
A Qbasic driver program.
adc11.c
A little turbo C program.
pclpt1.txt A
quick explaination of the PC's LPT1 as used here.
constrct.txt A short tutorial
in how to build it.
pinout.txt The
ADCs pinout.
lptcon.txt The
lpt port's pinout for the DB25 connector.
MFL'95