Other Parts Discussed in Thread: MSP-EXP430G2ET, ,
I have a question about the voltage supply from the chip.
I've connected up a thermistor and voltage divider to the chip and I am getting incorrect resistance readings for the thermistor. I think the error is coming from the value I'm using for the input voltage.
The supply voltage SVss is 125mV on the datasheet (section 5.23) but my calculated temperature values are incorrect when using this value. When I measure SVss using a DMM I am reading ~300mV. The temperature values are close to the correct values if I use 300mV for SVss in my calculations.
Have I misinterpreted the datasheet? Is 300mV the correct value for SVss?
I am using 0.9V for the reference voltage for the 14-bit ADC, this value is taken from the datasheet also.
Appreciate any help.