6 years, 6 months ago.

Internal ADC reference

It's not clear from the datasheet, does the LPC1114 have an internally generated analog reference? Or, do I need to connect AVIN and AGND to VIN and GND respectively?

Question relating to:

The LPC1114FN28 is an ARM Cortex-M0 based, low-cost 32-bit MCU, designed for 8/16-bit microcontroller applications, offering performance, low power, simple instruction set and memory addressing together with reduced code size …

1 Answer

6 years, 6 months ago.

If you want the normal MBED range of ADC, i.e. 0 to 3V3 (or supply)

then connect VSSA to Gnd, and VCCA to VCC,

naturally you can connect them to, for example 1V0 and 2V024,

and get 1mV steps form 1 to 2 volts ...

Hope that was useful.


Accepted Answer