Hello All,(adsbygoogle = window.adsbygoogle || []).push({});

I just finished a college course on electronic circuits (opamps, mosfets, bjts, etc) and I'm trying to put some of that knowledge towards designing a basic MOSFET amplifier circuit. Right now I'm at the stage of selecting DC biasing points and I'm having a bit of difficulty selecting these values.

http://www.datasheetcatalog.org/datasheet/irf/jantx2n6770.pdf

Above is the datasheet for the part I am using in my multisim simulations. Is there any way of determining what my Vgs DC biasing pointfor saturation regionshould be just based on the datasheet. I ask this because I don't know whether or not it is common practice in design to always create a Vgs vs Vds curve to find the appropriate Vgs DC bias point. From what my professor told me we should be able to look at a datasheet and find out what we need to set our Vgs DC to but I don't know how to do that based on the information given in the datasheet.

Any help with this would be greatly appreciated. I'm just having some difficulty bringing the classroom knowledge into the real world where all of the specific device parameters aren't explicitly listed.

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Selecting Vgs and Vds for MOSFET Amplifier

**Physics Forums | Science Articles, Homework Help, Discussion**