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About bandgap reference and voltage reference circuit?

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ronanchang

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Are there any difference between bandgap reference and voltage reference circuit?

Can both them mean to the same circuit ?
For example: Can we refer Brokaw bandgap reference to Brokaw voltage reference?
 

a bandgap reference circuit is a voltage reference circuit with its output voltage almost temperature independent.
 

Bandgap reference is one of voltage reference circuits.

Bandgap generate temperature independant voltage.
 

yes, Bandgap reference is one of voltage reference circuits.
Voltage reference include bangap, cmos voltage reference, R devider, R-Bjt voltagte reference and so on
 

Agreeing with Sunking and ranier. they are having some contacts , but are not the same.
 

Hi,

Bandgap is a very good voltage reference because it is independent of power supply whereby other circuit like MOS or resistor divider also could be a reference voltage but these circuit tend to vary the output once the power supply or process change.

Suria3
 

The bandgap reference can generate references having a temperature coefficient on the order of 10ppm/`c over the temperature range of 0-70`c
 

A voltage reference is a circuit that provides a constant voltage. This constant voltage can be dependent upon PVT conditions or can be independent. A resistor divider is an example of PVT dependent reference. A bandgap is also a reference circuit which is very less dependent on PVT conditions.
 

A band gap reference is generally generated by the difference of the voltage drop of two PN junctions. One being about 8 to 10 times the size of the other. Therefore, one is a PTAT and the other is a CTAT and thus each will compensate for the variations in temperature.
 

Right, bandgap referance is one kind of voltage referance,and is the most useful kind.

Regards!
 

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