This application note describes how to interface a MAX1169
analog-to-digital converter (ADC) to a PIC microcontroller. It includes
an example circuit and software for a PIC18F442. The software contains
function calls to interface the ADC to the PIC microcontroller using
the internal MSSP I²C port at 400kHz.
application note consists of an example application circuit and
software using the PIC18F442. The software contains function calls to
interface the MAX1169 to the PIC using the internal MSSP I²C port at
is the use of a Robot, which cannot perceive its environment in
detail. Where can a Control system be effective, if it does not get a
“feedback” about its actions. How could one do Analysis and Research or
Verify, when he cannot Measure a parameter with good accuracy and
ADC are the Eyes and Ears for a uC, this
brings the Real world as Numbers within the CPU. Without ADC a uC is
like a Frog in the Well and has to create an Imaginary World for
himself. That is beyond the scope of Engineering.
your favorite PIC Microcontroller to his senses. Give him an ability
to Perceive the Reality around him. Get him an Analog to Digital
Converter and don’t forget to code.
An ADC must be
better than 4 1/2 Digit Value. For me the Intersil chip 7135 is a
Benchmark. Beyond 5 1/2 Resolution may be needed only for Scientific
I would say, 2 1/2 is like Analog Meters/Bar
Graphs, 3 1/2 for Control systems, 4 1/2 for T&M and beyond 5 1/2
is for R&D.
– delabs Notes