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

about PGA gain and gain bandwidth product

Status
Not open for further replies.
B

bynonsun

Newbie level 1
Joined
Oct 22, 2005
Messages
1
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,286
I want to design a PGA using in front of the sigma-delta ADC. the ADC resolution is 20bit and works at 250kHz. the PGA's gain is 16.
how many should the gain and gain bandwidth product of OPA achieve?
I calculated it. The feedback factor is 0.059, error is 1/2^20, then the gain should be about 150dB and gain bandwidth product should be about 20MHz.
Should this design of the OPA follow it?

thanks!
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top