hai

I need a sine wave generator ic for generating 300 kHz to 500 kHz
i tired to get MAX038 but unable to find it Ireland

can any one suggest any alternative ic?
or any international supplier for max038

thanks and regards
pratap

note: please dont ask me to google it, i am doing it since 3 days and posting here

 

Try XR2206

 

hai

I need a sine wave generator ic for generating 300 kHz to 500 kHz
i tired to get MAX038 but unable to find it Ireland

can any one suggest any alternative ic?
or any international supplier for max038

thanks and regards
pratap

note: please dont ask me to google it, i am doing it since 3 days and posting here

They stopped making the MAX038 around 2007/2008 I think. You can get it from EBAY. But it is not a cheap IC

 

They stopped making the MAX038 around 2007/2008 I think. You can get it from EBAY. But it is not a cheap IC

dude

I cant buy on ebay, because I am from University
they should be bought through purchase order
anyway thanks for the reply

 

Try XR2206

even its not available in Ireland
thanks for th reply

 

But does not the major component re-sellers. Sell all over Europa?

 

But does not the major component re-sellers. Sell all over Europa?

i tried with farnell,digikey,mouser and radionics with no luck

 

Regarding XR2206:

even its not available in Ireland
thanks for th reply

I know nothing about buying parts in Ireland, but what about Donberg Electronics? They didn't say if they were available.

 

Try XR2206

Doesn't do well above about 200 kHz.

 

I can't imagine any respectable university project demanding a particular component that hasn't been generally available for many years.

You should look at this from a different viewpoint.

What are you trying to achieve?

In other words what are your design objectives?

There are many ways to create a signal generator. You haven't even stated what wave shape (s?) you need.

You will get plenty of useful help with a project here, but only in proportion to what detail you are prepared to put in.


The XR2206

Doesn't do well above about 200 kHz

I endorse this.

However if you must have one this London supplier will post to Ireland.

http://www.cricklewoodelectronics.com/Cricklewood/search.php?mode=search&page=1

 

Maxim claims that its foundry that makes the MAX038 was destroyed in a hurricane (called a cyclone or monsoon over there). I suspect that maybe they were not selling enough of them to change their production to a surviving foundry.

 

I can't imagine any respectable university project demanding a particular component that hasn't been generally available for many years.

You should look at this from a different viewpoint.

What are you trying to achieve?

In other words what are your design objectives?

There are many ways to create a signal generator. You haven't even stated what wave shape (s?) you need.

You will get plenty of useful help with a project here, but only in proportion to what detail you are prepared to put in.


The XR2206


I endorse this.

However if you must have one this London supplier will post to Ireland.

http://www.cricklewoodelectronics.com/Cricklewood/search.php?mode=search&page=1

Hai

thanks for the reply
I am trying to provide excitation to my magnetic sensor
hence I need 300/400 kHz sine wave, 50% symmetric, 10V pk-pk
I am unaware of DDS, how to use it etc..

 

sine oscillators are simple and common, why not use Wien bridge oscillator for example. needs opamp and few components.

http://en.wikipedia.org/wiki/Wien_bridge_oscillator

 

Magnetic devices are usually current drive, not voltage drive.

However your details are a start towards a design.

You will almost certainly need some kind of buffer between the oscillator and the magnetic device.

Have you considered this?

What (generally) is your project about? That is, should you be designing the oscillator or can you use the work of others?

 

sine oscillators are simple and common, why not use Wien bridge oscillator for example. needs opamp and few components.

http://en.wikipedia.org/wiki/Wien_bridge_oscillator

This sounds interesting, but it would depend on how fast the oscillator has to move between 300kHz and 500kHz. As far as I remember, what the Wien bridge does best is to sit on one frequency (or move very slowly between frequencies) and produce a sine wave with low distortion. Not so good for quick changes of frequency.

Anyway, if it doesn't have to be an IC, maybe this note may suggest some ideas:

AN263 Sine Wave Generation Techniques from Texas Instruments, 1999

http://www.ti.com/general/docs/lit/getliterature.tsp?literatureNumber=snoa665b&fileType=pdf