i intend to use the ADC0804 IC as the ADC for my uni project. the datasheet says it can operate in a standalone mode. i've cr8ed a standalone circuit with LEDs to show the output. however, my circuit seems moody. sometimes it works sometimes it doesn't. i followed the diagram given but i left the digital ground out. furthermore, connecting digital ground to the supply ground does not solve my problem. any ideas?
ps: i'm trying to get it to work before interfacing it with the microprocessor
i've left them out as i thought it wasn't required if i just wanted to run it standalone. i guess i'm wrong? sorry i'm quite new to this. we get no help from the lecturers at all for this project.
i've left them out as i thought it wasn't required if i just wanted to run it standalone. i guess i'm wrong? sorry i'm quite new to this. we get no help from the lecturers at all for this project.
okay thanks alot. your help in these couples of hours was more valuable than the 3 past days i spent researching on this. this week was supposedly my mid semester break. engineering students have it tough
okay thanks alot. your help in these couples of hours was more valuable than the 3 past days i spent researching on this. this week was supposedly my mid semester break. engineering students have it tough
nope doesn't work. the CSbar and RDbar pins should be driven low right? also i think the INTRbar pin is driven low to stop conversion. therefore INTRbar and WRbar pins cant be tied together
nope doesn't work. the CSbar and RDbar pins should be driven low right? also i think the INTRbar pin is driven low to stop conversion. therefore INTRbar and WRbar pins cant be tied together
do i have to pulse the start switch? or simply turn it on? i have a vref and the analog input voltage is provided by a voltage divider made up of a potentiometer and a fixed biasing resistor
do i have to pulse the start switch? or simply turn it on? i have a vref and the analog input voltage is provided by a voltage divider made up of a potentiometer and a fixed biasing resistor