Hello

Is it possible to cascade two 5V references to get a 10V reference?

The voltage references that I'm referring are the MCP1502 from Microchip.
MCP1502 Datasheet

 

Not really.
What's the 10V reference for?
What accuracy and stability do you need?
You can amplify the 5V to 10V with a gain of +2 non-inverting op amp circuit.

 

I don't have a specific application in mind.
I was just curious, since stacking is possible with other bandgap references like for example the ISL21090 or the REF50xx.

 

I don't have a specific application in mind.
I was just curious, since stacking is possible with other bandgap references like for example the ISL21090 or the REF50xx.

Give it a try as a Zener string.
https://www.ti.com/lit/an/sbaa203/s...78369&ref_url=https%3A%2F%2Fwww.google.com%2F

 

The MCP1502 must not have a supply voltage above 5.5V.
I am using a LM4040-50 where you can stack two.

 

With this kind of reference, it can only source current, there is no way to sink current, so you would have to provide a load resistor for the lower voltage reference so that the minimum load current plus the quiescent current from the upper reference can be sent to ground.
Edit: Changed "...no way to source current," to "...no way to sink current,"

 

I was just curious, since stacking is possible with other bandgap references like for example the ISL21090 or the REF50xx.

It may be possible, but no good design would do that.

 

If you are going to stack reference devices you want the lower one to be able to sink current. Shunt devices like the TL432LI are best for that application. Also you need to be careful with minimum and maximum operating currents and voltages. The MCP1502 does not allow for a very significant spread from input to output voltage, in some cases it needs to be fed from a voltage regulator. FWIW stacking two TL432 makes a nice 5V shunt regulator with a good low-impedance midpoint great for biasing 5V analog (operatiional) amplifiers. Add programming resistors and you can get a higher voltage with a tap almost anywhere you want it.

 

It’s also worth noting that the bandgap voltage of silicon is 1.225 volts. Any othe voltage is derived already by a precision amplifier of some sort. If you need 10V just buy the 10V reference instead of the 5V.