Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic 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

reducing the noise of the circuit

Status
Not open for further replies.

R110

Member level 3
Joined
Oct 16, 2001
Messages
59
Helped
24
Reputation
48
Reaction score
24
Trophy points
1,288
Location
Iran
Activity points
450
I have designed a electronic switcher board.now I need a low noise power supply (+5 and -5 volt and at least 700 mA current). my current power supply is designed with 7805 and 7905 , but it has at about 300 mili-volt noise.
by the way I have employed a AT89C51 , some digital ICs and two 74HCT4051 as a analog switch and AD826 as a video amplifier and a 16 character LCD and ...
I want to seperate the ground of digital and analog to reduce the noise. do you have any other recomendation.
at last I want to design a inverting amplifier with AD826. What do you recomend ?do you have any good design that reduce the noise ?
Thaks in advance
Ramin
 

Status
Not open for further replies.
Toggle Sidebar

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top