ICL8038 waveform generator

17 Mar 2015

The ICL8038 waveform generator is a monolithic integrated circuit capable of producing high accuracy sine, square, triangular, sawtooth and pulse waveforms with a minimum of external components. The frequency (or repetition rate) can be selected externally from 0.001Hz to more than 300kHz using either resistors or capacitors, and frequency modulation and sweeping can be accomplished with an external voltage.(Datasheet ICL8038)...Obsolete product but only use for students

ICL8038 Data

Internal diagram of the oscillator

According to the data sheet can be used with two power supplies and a single power supply.

In my application Use only one power supply (12V), consumption of integrated circuit is very low (less than 20mA)

Circuit diagram implemented

Board

Printed circuit implemented

Capture Oscilloscope - forms of signals

Top Comments

peterjcs23 over 8 years ago in reply to martinvalencia

Farnell stock the AD5930, if you have an account, or I think you can use a credit card. Peter
http://uk.farnell.com/analog-devices/ad5930yruz/ic-waveform-generator-25mhz-tssop/dp/1274252?ost=AD5930
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martinvalencia over 8 years ago in reply to peterjcs23

AD5930 is an interesting device, I wasn't aware of such a device also has a high operating frequency; i'll try to find it in my country, thanks for the info
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peterjcs23 over 8 years ago

Hi Martin, Analog Devices make waveform synthesis chips AD5932 and AD5930. They are modern digitally controlled chips. I've never used one but they are worth a look, if you want to check out an Arduino or RasPi project...Peter
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martinvalencia over 8 years ago in reply to jw0752

thank you very much for the link and it really is a shame that this chip is out of service, I see really useful in many ways, I hope to have a more modern version, will inquire a little about their new versions

Regards

Martin
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jw0752 over 8 years ago

Hi Martin,
I was first introduced to the ICL8038 chip by an Excellent on line tutorial site "Electronic Tutorials"
http://www.electronics-tutorials.ws/waveforms/waveforms.html
It is a shame that this chip is out of production as it is very flexible and fun to work with. You did a very nice job making a board and demonstrating it. Thanks for the great post.
John
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