poly resistors and n-well resitors

[mymi]

why do we put poly resistors and n-well resistors in circuit?
what is their differences?

 

[ckshivaram]

poly reistor have not high resistivity its accuracy will be best than others. the high resistivity resistors are HR poly or well resistors.

---------- Post added at 13:54 ---------- Previous post was at 13:52 ----------

https://www.edaboard.com/threads/218624/

 

[leo_o2]

NWell resistor depends on bias voltage while poly resistor voltage dependance is very small.

 

[mymi]

why are we putting resistors and capacitors in circuit?