[sdiy] 4 way analogue switch/mux IC?

Tom Bugs admin at bugbrand.co.uk
Wed Feb 21 23:52:25 CET 2018


Yes, maybe.

I have used DG333, 405, 408/9, 412, 418/9 - hopefully I haven't 
overlooked anything obvious in those sorts of ranges.
The little DG419 is quite useful and compact.

Cheers, Tom


On 21/02/2018 22:43, rsdio at audiobanshee.com wrote:
> Why not use individual FETs? That’s what the mux chips are made from.
>
> You might need a pair in parallel, or other tricks, but it should be possible to create a 3-way, 2-bit switch from discrete parts.
>
> By the way, the DG series also has two-way switches. Look at the DG333 or the DG401, DG403, DG405.
>
> Brian Willoughby
> Sound Consulting
>
>
> On Feb 21, 2018, at 2:26 PM, Tom Bugs <admin at bugbrand.co.uk> wrote:
>> I've used & liked a range of different DG4xx chips, but was wondering if anyone can think of a small/low-priced analogue switch/multiplexer - and +/-15V operation & pref in SMD.
>>
>> The main thing is implementing remote/panel switching of signals - typically from a spdt centre-off switch, so 3 way // 2 bit. Something in S08 & cheap would be ideal!
>>
>> It always seems a waste to use a big 8 way / 3bit mux for such things..
>>
>> Thanks for any ideas, Tom
>

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