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.

Precision Peak Detector

Status
Not open for further replies.

garimella

Full Member level 5
Joined
Aug 25, 2011
Messages
255
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,296
Activity points
3,223
Hi,

Looking for a precision peak detector with the range 1mV p-p to 10V p-p frequency 50Hz.

Any suggestions...
 

goldsmith

Advanced Member level 5
Joined
Dec 14, 2010
Messages
3,986
Helped
739
Reputation
1,482
Reaction score
725
Trophy points
1,413
Location
Tehran - IRAN
Activity points
24,529
Hey buddy!
What is your accurate mean? say your question clear , please.
Best wishes
 

garimella

Full Member level 5
Joined
Aug 25, 2011
Messages
255
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,296
Activity points
3,223
Hi Goldsmith,

By precision I mean that my peak detector shall give DC output corresponding to 1mV p-p to 10V AC input signal, with step size of 1mV. The ripple shall be negligible.. I hope it is clear.

regards
Gari
 

vimalkhanna

Full Member level 6
Joined
Aug 7, 2010
Messages
323
Helped
55
Reputation
110
Reaction score
53
Trophy points
1,308
Location
delhi
Activity points
3,238
Your concept of 1mV pp to 10VAC peak detection means chopped fn of 10e4.
Accurate determination to 1mV ripple means another 10e-3 .
As such your total chopper frequency for peak and hold needs to be t=10e-7.
Where will you get 10Mhz clock?
Kindly see for getting more realistic OR consider breakup in two overlapping ranges .
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top