Contents
What is ADC power supply?
Powering any data converter, such as an analog-to-digital converter (ADC) or digital-to-analog converter (DAC), requires a clean, low-noise power supply. Traditionally, engineers used low-dropout (LDO) linear regulators because this topology introduces no switching noise onto the supply voltage.
How can I reduce my power supply noise?
Filtering, bypass, and post-regulation are the three primary ways to reduce power-supply noise, but there are some less-used techniques. One is to use a battery to power your circuitry. Batteries are a very low noise power source compared to switching or even linear converters.
What are the fundamentals of precision ADC noise analysis?
Fundamentals of Precision ADC Noise Analysis4September 2020 I Texas Instruments Introduction from the author When I first began working in the semiconductor industry, I had never heard of a delta-sigma analog-to-digital converter (ADC). My university training focused heavily on digital design, and the only ADCs we used were low-resolution
How did Bryan get interested in ADC noise?
Bryan became interested in the topic of ADC noise soon after joining the ADC team, seeing that many disparate questions seemed like they could be traced back to challenges with noise, precision and resolution. Specifically, he found many customers had difficulty understanding the relationship between noise and gain, as well as how
What kind of ADCs are used in MCUs?
My university training focused heavily on digital design, and the only ADCs we used were low-resolution successive-approximation-register (SAR) ADCs integrated into microcontrollers (MCUs). As a result, it was somewhat daunting to be assigned to the Precision ADC team, where digital knowledge is certainly useful, but analog design is king.
Why do we need to know about signal chain noise?
Regardless of your efforts to minimize power consumption, decrease board space or reduce cost, noise levels greater than the input signals render any design effectively useless. As a result, this e-book is designed to provide fundamental knowledge to help any analog designer understand signal-chain noise, its effect on analog-to-digital