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Jonathan Harris

How Do You Analyze ADC Noise? Part 1

Jonathan Harris
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We look at using a DC/DC converter along with an LDO to drive the ADC power supply inputs.
I thought it would be good to continue looking at the example I gave in my last blog where we looked using fewer LDOs and combining power supply rails on an ADC while maintaining isolation with ferrite beads.
There are some disadvantages when driving low input supply voltages, where multiple LDOs may be required.
Keeping the power supply inputs on separate domains can minimize crosstalk and make it much harder for noise to interfere with ADC performance.
As is typically the case, at least from my observance in the last four years, the second day of the show proved to be the busiest.
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