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Switched capacitor filters

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schmitt trigger

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Just a curious question;
Is anyone here actually still using switched capacitor filters?

I remember when I first played around with the MF10, and felt it was the best thing since sliced bread.

National and many other started to offer a large portfolio of devices, but nowadays the offerings have been pared down.

Are they still viable building blocks?
 
I think. with the increasing power of digital processing to readily perform complex filtering tasks, the switched-capacitor approach has less appeal and practicality.
 
Just a curious question;
Is anyone here actually still using switched capacitor filters?

I remember when I first played around with the MF10, and felt it was the best thing since sliced bread.

National and many other started to offer a large portfolio of devices, but nowadays the offerings have been pared down.

Are they still viable building blocks?
I have a few tubes of them (National), any takers?
 
I believe you are correct.
Performing an unscientific investigation, comparing all of the Digikey’s offerings and then applying the “In Stock” filter, the availability is reduced to a third.

Most of the non-available stock is shown as obsolete, while the remaining is “factory stock” only, meaning very slow moving parts.
 
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