Mikroelektronika MikroE Development Kits MIKROE-465 Scheda Tecnica
Codici prodotto
MIKROE-465
15
PICPLC16 v6 Development System
PICPLC16 v6 Development System
MikroElektronika
page
10.0.
10.0. A/D Converter Test Inputs
A/D Converter Test Inputs
An A/D converter is used for converting an analog signal into the appropriate digital value. A/D converter is linear, which means
that converted number is linearly dependent on the input voltage value. The MCP3204 circuit is used as an A/D converter on the
PICPLC16 v6 development system. Voltage to be converted into a 12-bit number is brought to the A/D converter input pins by
means of the MCP6284 operational amplifi er. The result of conversion is transferred to the microcontroller by means of serial
communication. For the digital signal to be transferred to the microcontroller, it is necessary to set switches 4, 5, 6 and 7 on the
DIP switch SW9 to the ON position. In case that voltage reference is used during A/D conversion, it is necessary to select desired
voltage reference by means of DIP switch SW10. If the power supply voltage is used as a voltage reference, then switch 8 on the
DIP switch SW10 should be set to the ON position. If the 4.096V voltage is used as a voltage reference, the switch 7 on the DIP
switch SW10 should be set to the ON position.
that converted number is linearly dependent on the input voltage value. The MCP3204 circuit is used as an A/D converter on the
PICPLC16 v6 development system. Voltage to be converted into a 12-bit number is brought to the A/D converter input pins by
means of the MCP6284 operational amplifi er. The result of conversion is transferred to the microcontroller by means of serial
communication. For the digital signal to be transferred to the microcontroller, it is necessary to set switches 4, 5, 6 and 7 on the
DIP switch SW9 to the ON position. In case that voltage reference is used during A/D conversion, it is necessary to select desired
voltage reference by means of DIP switch SW10. If the power supply voltage is used as a voltage reference, then switch 8 on the
DIP switch SW10 should be set to the ON position. If the 4.096V voltage is used as a voltage reference, the switch 7 on the DIP
switch SW10 should be set to the ON position.
Figure 10-1: A/D module
Figure 10-2: AD module and microcontroller connection schematic
A/D converter communicates to the microcontroller using SPI communication
A/D converter’s connector