Engineering:Intersil ICL8038
The ICL8038 waveform generator was an Integrated circuit by Intersil designed to generate sine, square and triangular waveforms,[1] based on bipolar monolithic technology involving Schottky barrier diodes.[2] ICL8038 was a voltage-controlled oscillator[3]:434 capable of producing frequencies between a millihertz and 100kHz.[4]:2, some specimens capable of reaching 300kHz.[4]:1 The device has been discontinued by Intersil in 2002.[1][4]:1
Triangular waves were produced by charging and discharging a capacitor with constant currents. The triangular waves were converted to sine waves involving a non-linear network.[4]:4 The output frequency was set either by resistors or the external control voltage.[4]:6 The temperature drift could be optimized to less than 250ppm/°C by combining it with a PLL.[4]:1
References
- ↑ 1.0 1.1 Santo, Brian (1 May 2009). "25 Microchips That Shook the World" (in en). Institute of Electrical and Electronics Engineers. https://spectrum.ieee.org/tech-history/silicon-revolution/25-microchips-that-shook-the-world. Retrieved 7 January 2019.
- ↑ "Precision Waveform Generator/Voltage Controlled Oscillator". http://www.intersil.com/products/deviceinfo.asp?pn=ICL8038. Retrieved 7 January 2019.
- ↑ Horowitz, Paul; Hill, Winfield (9 April 2015). The art of electronics (Third ed.). Cambridge University Press. ISBN 9780521809269.
- ↑ 4.0 4.1 4.2 4.3 4.4 4.5 "ICL8083 Datasheet" (PDF). 5 February 2012. Archived from the original on 7 January 2019. https://web.archive.org/web/20120205071737/http://www.intersil.com/data/fn/fn2864.pdf. Retrieved 7 January 2019.
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