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

Question on large signal gain

Status
Not open for further replies.
Y

yschuang

Full Member level 3
Joined
Feb 1, 2004
Messages
183
Helped
15
Reputation
30
Reaction score
2
Trophy points
1,298
Activity points
1,002
large signal voltage gain

Hello, all

The schematic is a fully differential opamp and an ideal cmfb is used and biased @ half VDD. VDD is 3V.
I was wondering if it is natural or right to test that or any opamp with
a differential voltage which ranges from -1v to 1v because I observed the gain is around 240. The following spice deck is how I test it and check the slope of output voltage. The gain or small signal gain is quite good when the input differential voltage ranges from -20mV to 20mV.
Thanks.

*** deck ***
.dc vid -1 1 0.01
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top