Analog Data I/O Solutions for Intel® 8xC196NP Microcontrollers
The Application Note discusses analog input and output peripherals and
their interface to Intel's 8xC196Nx (Nx will refer to NP and NU devices
throughout this application note) microcontrollers. The example of a
EPA-based integrating ADC design shows an inexpensive way to build a
high-resolution ADC. The serial and parallel interfaces to the
Analog-to-Digital (ADC) and Digital-to-Analog (DAC) converters are
explained. The advantages of the serial I/O ADCs and DACs as the analog
front end for Intel microcontrollers are illustrated. The key role of the
appropriate PCB layout and opto-isolated data interface for precision
improvement is discussed.
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