High Frequency Full Wave Rectifier

Thread Starter

Simardeep Singh

Joined Oct 27, 2015
1
Good afternoon,

I am assigned a simple project for my course and I would appreciate some guidance in what steps should I take.

The task is to design a precision full wave rectifier, where the input is a sine wave with a frequency range of 1kHz to 1MHz also with an amplitude of 500mV and 5V. The distortion in output waveform should be minimal.

Currently, I am doing research on designs from different manufacturers and a lot of them depend of low frequency range. If anyone can help a junior out, I would appreciate it.

Thank you
 

#12

Joined Nov 30, 2010
18,076
A very short search of vendor sites shows that there are plenty of op-amps fast enough to do this job.:)
The first one I found costs $108, but that was a very low quality search I did.:oops:
More time spent searching should surely find a better price.;)
 

dl324

Joined Mar 30, 2015
8,918
Somewhere on the web there's a neat precision full wave rectifier that uses 2 single supply opamps and no diodes. Designed by a couple Spanish students IIRC...

I'd post a schematic, but this is homework.:rolleyes:
 
Last edited:

crutschow

Joined Mar 14, 2008
23,349
You will find that getting to 1 MHz with a precision rectifier is not a trivial task, even with a high frequency op amp.
 
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