konstantis

Hi!I don't know if anyone has already mention this subject.I want to cut off the negative (-)Vsat that creates a comparator(operational amplifier),rectify it at 0 Vdc and keep only the positive(+)Vsat.I need this signal to enter in an AND gate.I was said to use a diode.Is there any idea?Thank you

Hi!I have a project to do concerning a sampling of a waveform by a a/d converter and the reconstruction of it with a d/a converter.The converters are about to be bought ready.The point is how to make them work and cooperate on the same "circuit".The number of bits of the converters was left to us.We have to take care to keep the cost as low as possible.If someone could make a suggestion it would help me a lot!Even more helpful would be a small general plan of the circuit.Thanks