Delta-Sigma

DAC and ADC: The Reciprocal Journey Between Digital and Analog

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DAC and ADC: The Reciprocal Journey Between Digital and Analog

“Analyzing the working principles of digital-to-analog converters and analog-to-digital converters—from resistor ladder networks to Delta-Sigma modulation techniques.” Microcontrollers are “consuming” the entire world. Nowadays, even the most basic tasks like blinking an LED are cheaper and simpler with microcontrollers than building oscillating circuits with discrete components or relying on the once ubiquitous 555 timer chip. … Read more

Low-Power High-Speed ADC Design by Dr. Zhan Mingtao

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Low-Power High-Speed ADC Design by Dr. Zhan Mingtao

Special Edition of ISSCC 2022, Session 10 On the morning of June 10, the 24th session of Doctoral Innovation in “Chip” was held online, featuring the 10th session of the 【ISSCC 2022 Special Edition】.Dr. Zhan Mingtao from Tsinghua University was invited to give a presentation titled “Low-Power High-Speed ADC Design“. The report was simultaneously broadcasted … Read more

An Introductory Delta-Sigma (ΔΣ) ADC Chip – TI ADS1115

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An Introductory Delta-Sigma (ΔΣ) ADC Chip - TI ADS1115

Introduction The ADS1115 is well-suited as an introductory ΔΣ ADC for several reasons: Two major players in the maker community, Adafruit and Seeedstudio, have written tutorials on its use with Raspberry Pi, see [1], [2]. It is included in the TI High-performance / Precision ADCs series, albeit at the lower end, as shown in Figure … Read more