Any good references on Rail to Rail Input/Output amplifier with 1.5V Vdd

Status
Not open for further replies.
S

steadymind

Full Member level 4
Joined
Sep 15, 2007
Messages
201
Helped
42
Reputation
84
Reaction score
36
Trophy points
1,308
Location
USA
Activity points
2,519
I need some references for rail to rail inout output amplifier to be used as a buffer for a driving Capacitive DAC.

min 60dB, closed loop BW (unity gain) - 1MHz, Vdd - 1.5V.

i am working on 0.18um with 1.5V vdd and cant stack more than 4 transistors which makes most of the class AB type difficult to design.
 

I will try this as input stage... any thing for output rail to rail stage ?
 


Don't forget that when using this simple rail to rail input Nmos, PMOs pairs you will not have a constant GM which will change your GBW over input range. This could effect your system which you should check! I would also suggest the Monticelli or battery bias class AB output as well... They are very simple to build and work very very well!
Jgk
 

A fast buffer. Drawback: input is low impedance.
US patent: US7463066
 

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…