Operational Amplifier types BJT, FET, CMOS

Status
Not open for further replies.

diamadiss

Member level 1
Joined
Mar 6, 2010
Messages
41
Helped
0
Reputation
0
Reaction score
1
Trophy points
1,286
Activity points
1,654
Hello,
Does anyone know which is the characteristic that defines an operational amplifier at one of the tree catategories (BJT, FET, CMOC)? Is the type of tranzistors that have on his input or in output or in both (in and out)?
 

Attachments

  • TL081.png
    41 KB · Views: 85
  • LM741.png
    70.6 KB · Views: 90

Both.
As a fact there are many devices which use a mixed process.
For instance, the ubiquitous TL072 and TL074 have Jfet inputs and BJT in the remaining circuitry.
BiCMOS opamps are also fairly common. One of the earliest ones, the CA3140, has been around since the early 1970s.
 

Am I a smartie pants?
I recognised the LM741 opamp in your second attachment but I used it only one time and found its performance to be awful.
I did not learn about it in school because it was not invented yet.
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…