how to design the BIAS of a triple cascode (telescope) OTA?

[kobeii]

tripple cascode

i am trying to design a triple cascode (telescopy) OTA, but I don't know how to generate the BIASing structure of this HIGH SWING OTA.

thx

 

[eng_Semi]

self biasing of ota

I didn't get ur question. But if u r asking about the biasing voltages, so in real IC's these voltages are generated from the bias cells, like the bandgap reference.

please clarify ur question

 

[nile_king]

biasing a cascode structure

I think you may need self biasing using resistors but if u need high swing try the folded cascode
try to check anaolg design book like razavior meyer

 

[wholx]

telescope bias

use the high swing configuration to eliminate the Vt from the swing range. check out meyer's.