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thanks for your reply. From your suggestion, the least output of the IC is 2.048V, but what i need is 0.75V. do you have any ideas?This creates a reference voltage. If you need it to be more "reference" than a tenth of a percent, reply with your requirements.
the circuit needs to be high precision. yes, using two resistors can get what i want. but i think it's not a good approach. cause this method cann't achieve high precision. and the high precision is quite important for me.two resistors
to be honest, i donnt think this point: .1% resistor. it seems that it almost has no influnce to ma circuit design. thanks.Did you know you can buy .1% resistors? That's POINT one percent. Ten times as precision as the 1% voltage reference!
that's ok. anyway,thanks for your help.No. As far as I know, there is no such thing as a .75 volt reference. That's why everybody in the world knows how to use resistors to get the voltage they want from a reference that is not EXACTLY .000% what they want.
i just couldn't understand what you mean? can you explain it in detailed?There goes another one that doesn't know Ohm's Law.
thanks for all the replys. the precision is sufficient for my design.
another question: i want to use the NE555 chip to produce 120khz square waveform, can the IC work? my mean is : is there a frequency limitation? like the highest frequency, lowest frequency etc..
hey,bychon. i think the approach using two resistors is a good method. and i just wanna do a experiment.I tracked this guy down on another site and found the answer. Dioded Incorporated makes an adjustable shunt regulator that starts at .6 volts. ZXRE060. He'll still have to use resistors, but this low of a voltage regulator is news to me and apparently a lot of other people.
This has been a public service announcement.
hello, anyone. Recently, i want to design a circuit of 0.75V reference voltage. i have researched the majority of the IC manufacturers' material, but i still cannt find a suitable design for my circuit.
could anyone offer some materials about the circuit design? thanks.