AnsweredAssumed Answered

[FRDM-KL26Z] Can the MCU accept negative voltage inputs for ADC?

Question asked by David Lee on Mar 1, 2016
Latest reply on Mar 2, 2016 by Kerry Zhou

Hi, I'm using FRDM-KL26Z board with IAR EWARM 7.20.

I just bought this board and I'm new to it. I want to use the 16 bit ADC.


I'm curious whether the MCU can accept negative voltages at the ADC input pins.


For instance,

I want to plug a sine wave

(-1 ~ 1 volts peak-to-peak which has frequency of 1000) using a function generator.

Can the MCU read the negative voltages and convert it?

If so, what configurations are needed?


- Best Regards, David