I need a voltage reference 300/400 /500 or 600mV 0.01% low ripple.
Shunt system is generating noise and is therefor not useful.
Using voltage dividers are also source of noise.

Does one of you have experience with < 601 mV references and what type did you use.

Picbuster

 

Shunt system is generating noise and is therefor not useful.

I am not sure what you mean by this.

You say "Voltage reference 400mV 0.01% input 3v3" in your title. What does 0.01% refer to?

Linear Technology makes some 400mv references with a buffer amp -- the LT6650. I think TI, Maxim and other manufacturers might have some as well.

 

You should be able to reduce the noise with a low-pass RC filter.

 

Have a look at Maxim DS4303.

 

Is 0.01% the RMS value of the noise, the precision of the output voltage, or what?

And ...

I need a voltage reference 300/400 /500 or 600mV 0.01% low ripple.

Why?

ak

 

Sorry to be not accurate : should read output 0.01% precision noise low as possible.
I need this to measure in nV.
I know all the techniques to reduce noise however avoiding as much as we can seems to me the first step.

Picbuster

 

I am not sure what you mean by this.

You say "Voltage reference 400mV 0.01% input 3v3" in your title. What does 0.01% refer to?

Linear Technology makes some 400mv references with a buffer amp -- the LT6650. I think TI, Maxim and other manufacturers might have some as well.

Shunt system is using a current source running into a resistor voltage over resistor is reference.

 

Have a look at Maxim DS4303.

DS4303 looks promising however quiescent current is high 1.1-1.5 mA

Picbuster

 

Nothing in post #1 about power, size, weight, environment, or cost. Any other restrictions?

ak