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Maithil Pachchigar

Let's Compare SAR & Δ-Σ Converters for a Mux'd DAS: Part 2

Maithil Pachchigar
Victor Lorenzo
Victor Lorenzo
12/16/2013 10:22:55 AM
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Blogger
Re: Dual ADC
Freescale has also several interesting parts focused in motor control applications. The Kinetis K20 family includes one Cortex M4, with a lot of connectivity options (UART, SPI, I2C, CAN, USB-OTG, etc.), two 16 bit ADC, one/two 12 bit DACs and several (fast) analog comparators (suitable for overcurrent detection).

As for many of this kind of SoCs ADC ENOB will hardly (if ever) reach the 16 bits, but 12bits are enough for many applications.

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Vishal Prajapati
Vishal Prajapati
12/16/2013 2:35:00 AM
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Dual ADC
Some of the Microchip dsPIC products are comming with two SAR ADCs that can sample simultaneously the multiplexed channels. Being microcontrollers they have good enough speed for motor control. They provide more than 1 MSPS throughput from ADC.

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For data acquisition systems, sometimes a successive approximation ADC works best. Other times, a delta-sigma is the best choice. Let's see what works best and why.
For data acquisition systems, sometimes a successive approximation ADC works best. Other times, a delta-sigma is the best choice. Consideration must also be given to the multiplexer. Let's see what works best and why.
For data acquisition systems, sometimes a successive approximation ADC works best. Other times, a delta-sigma is the best choice. Also, you need to consider the multiplexer. Let's see what works best and why.
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