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suria3 said:It is a folded cascode op-amplifier. It is basically a 2 stage op-amp so to ensure the stability of the op-amp when use in the feedback system, the pole-zero compensation which is Rz, Cc is done there. Slew rate is the measurement of how fast you output signal can change for a given input signal. Basically SL= I/CL, meaning that you need to increase the biasing current in order to increase the slew rate of the op-amp.
shaq said:If I want to operate this circuit in 0°C to 100°C temperature, which bias circuit is the best choice?
flushrat said:Yes, SR is related to GBW
In the above figure, the input slewrate SR_in=GWB*Vdsat(M1)
Btw,shaq, why you deleted the opamp design spec article?
I am interested in it.
shaq said:Ohh~~~my ---!!!!
I tune up these MOS' parameters all the week!
But I still cannot meet my specification!!!!!
Could anyone want to challenge this design?
Thanks so much!!!!
p.s. Boundary conditions
1.Process : TSMC 0.35µm
2.Supply voltage: 3.3V±10%
3. Temperature range : 0 ~ 100°C
4. Corner : SS,TT,FF