very low noise Bandgap reference

[jt_rf]

low noise bandgap

Is it possible to design a very low noise bandgap reference?
(without using any RC filter).

Will it help using a chopper?

say 20-30uV rms in 10hz to 100kHz.

thanks in advance.
JT

 

[safwatonline]

low noise bandgap reference

usually chopping requires a filter to remove the ripples

 

[erikl]

band-gap reference filtering

... say 20-30uV rms in 10hz to 100kHz. JT

Even the dedicated analog semi companies hardly can achieve this
S. e.g. **broken link removed**.

 

[jt_rf]

low noise band gap reference

Thaks eriki,

i have gone thru this datasheet.
but the current consumption is very high....prohibitively high...

regards,
JT