Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

designing opamp for buffer - OPAMP stability check quest

Status
Not open for further replies.
R

ranier

Junior Member level 1
Joined
Aug 24, 2005
Messages
18
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,283
Activity points
1,446
OPAMP stability check.

Hi all

I am designing resistor string DAC using 0.35um cmos process.
DAC specifiaction is 8bit , 80ks/sec and MAX 10nF load.

I have finished designing Resistor string and decoder.
Finally I am making output buffer(opamp).
I have to consider 2 cases load.[no load and 10nF load]

my question is

As I design the opamp for buffer,
Will I check the stability of opamp with output load(10nF) ?

In my opinion,
because I will use the opamp as buffer(vout and negative input opamp are shorted).

so I will check the stability of opamp with no load.
and then check the stability of buffer with 10nF load and no load.
(buffer == negative input and vout of opamp are short).

Am I right?
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top