i need some assistance here.
now im testing my ADC0804 and the output voltage is not the same with the input voltage i applied to it. there is some offset happened.
so now i think i might not getting the precise value for my project later. so what can i do for this?? anyone have any idea??
for my Vref, i use a resistor bridge to divide the voltage into 2.5V ( as my Vcc is 5V )
i need some assistance here.
now im testing my ADC0804 and the output voltage is not the same with the input voltage i applied to it. there is some offset happened.
so now i think i might not getting the precise value for my project later. so what can i do for this?? anyone have any idea??
An A2D provides a simple digital number based on the input voltage and the reference voltage - when the input voltage equals the reference voltage the value will be maximum, 255 for an 8 bit converter.
yaya..
i use power supply to set my input voltage as XX.
then from the 8 LED, it shows the 8 bits. by refer to the LED bright, i check table n get the output voltage.
there are different@
yaya..
i use power supply to set my input voltage as XX.
then from the 8 LED, it shows the 8 bits. by refer to the LED bright, i check table n get the output voltage.
there are different@