I going to design DAC by using DAC0808 with bipolar configuration. So I gonna connect pin 2 (ground pin) to ground and positive terminal of Op-amp. However, pin2(ground pin) of DAC0808 is always hidden, how can I connect that pin to a node? If anybody can help?
Not sure how that would work... Pin 2 of the DAC would be connected to ground via a 5k resistor ?? Also your Vref- and + cannot work like that.
It will read 0v and 5v.. What are you expecting at the output?? Looking at the datasheet, you are trying to make a virtual ground..
I am using Proteus to build this circuit. This is the circuit I try to build but unfortunately pin 2 is always connected to ground when using Proteus, I can't connect pin 2 to anyway.
I am using Proteus to build this circuit. This is the circuit I try to build but unfortunately pin 2 is always connected to ground when using Proteus, I can't connect pin 2 to anyway.
Sry, maybe I should not use the word 'build' , should use 'simulate' instead .I know how to build it physically and done it before. However it is a Proteus simulation coursework which we need to compare actual result from actual "circuit build" and simulation result by using "Proteus". Thanks for your time and advice.