11 Threads found on edaboard.com: Body Effect In Cmos
You can, provided that you aren't especially fussy about
the value or linearity. Linearity requires that Vds be kept
low (so you might want many segments, such that Vds<
Vgs) and body effect will then come into play, impacting
But you see this kind of thing done a lot especially in a
cmos op amp compensation network, the (...)
Analog Integrated Circuit (IC) Design, Layout and Fabrication :: 06-19-2014 12:10 :: dick_freebird :: Replies: 10 :: Views: 612
in the cmos there are intrinsic bipolar bjts. if you check the diagram of the cmos with n well you can see that the source and drain of the pmos is p+ and the well is n. and the substrate/body is ptype. so it can work as a pnp transistor. similarly there are other intrinsic bjt's. these are called parasitic transistors as they usually badly (...)
ASIC Design Methodologies and Tools (Digital) :: 02-03-2014 04:42 :: anishjoseph007 :: Replies: 1 :: Views: 889
Hi everyone! I am reading a paper about a cmos LNA design. But I am not sure where the parameters' values of a cmos technology are from???
The process used in the paper is SMIC 0.18um RF cmos processes. The values cited are:
(1) Gate oxide capacitance per unit area, Cox=9mF/(m^2);
(2) body effect (...)
RF, Microwave, Antennas and Optics :: 04-05-2012 13:24 :: jianke :: Replies: 1 :: Views: 804
can anyone tell me what is body effect in cmos?
and what is meant by process in PVT conditions..
thanks in advance
Check the below link for a brief description of process, voltage and temperature variations,
ASIC Design Methodologies and Tools (Digital) :: 11-01-2011 03:34 :: f1freak :: Replies: 4 :: Views: 666
In razavi's design of analog cmos integrated circuit, chapter 3, it states/shows that body effect decrease the output resistance.
But I find it puzzling. I bias the NMOS source with a certain voltage, eg 0.3V.
Setup 1: Base and Source are connected together to 0.3V bias. (No body effect) (...)
Analog Integrated Circuit (IC) Design, Layout and Fabrication :: 05-17-2011 12:20 :: surreyian :: Replies: 2 :: Views: 1199
what is body effect in cmos?and how it will come and how it will reduced?
ASIC Design Methodologies and Tools (Digital) :: 09-08-2009 05:37 :: vamsi_addagada :: Replies: 4 :: Views: 21884
The rectifier block uses a cascaded Dickson voltage multiplier circuit with multiple cascaded sections in order to convert the extremely low input voltage up to a potential suffi cient for operating cmos circuits.
The bulk terminals of the PMOS transistors were tied to the gate and drain terminals (back-bias) to reduce the effective threshold vol
Analog Circuit Design :: 08-26-2008 10:09 :: standup :: Replies: 0 :: Views: 744
body effect is due to voltage difference between source and body terminal so it will be present in both MOS,,,.....
ASIC Design Methodologies and Tools (Digital) :: 10-27-2007 11:26 :: A.Anand Srinivasan :: Replies: 2 :: Views: 1961
Does the body effect limit the number of transistors that can be placed in series in a cmos gate at low frequencies. Please explain
Elementary Electronic Questions :: 10-04-2006 13:38 :: blackhawk_ :: Replies: 2 :: Views: 830
i am highly confuse that why do ground body pin of R, C & L in cmos device, but i know the reasion for actice device. but 4 passive i dont know the reasion.
In order to model the parasitic effect of these passive devices we need 3 terminals.... Now, the question is where do we want to connect
Analog Circuit Design :: 08-01-2006 10:32 :: pbs681 :: Replies: 4 :: Views: 839
One of the biggest. You could simulate your regular working analog cmos circuit is you modify each
bulk. For PMOS and for NMOS make an additional series RC network. That mimic the floating body. But
negleate the intercoupling. So you now that about 20-30% of the gate charge is put into substrate.
Now also the sereis RC network react by controlli
Analog Integrated Circuit (IC) Design, Layout and Fabrication :: 07-14-2004 10:17 :: rfsystem :: Replies: 1 :: Views: 1449