[sdiy] µP controlled analogue switches

[Happy Harry]

Check out Maxim. They have muxes with latches and the voltage
range you need... I just looked yesterday ;^)

H^) harry


>From: Fortner Florian <florian.fortner at fh-joanneum.at>
>To: "'synth-diy at node12b53.a2000.nl'" <synth-diy at node12b53.a2000.nl>
>Subject: [sdiy] µP controlled analogue switches
>Date: Wed, 2 May 2001 14:37:22 +0200
>
>Hi folks!
>
>I'm  a newbie in synthesizer design, so I wanted to start with the ASM-1 
>but
>with full MIDI-control. My biggest problem is the signal and cv routing, 
>for
>4 asm-1 circuits I need 30-45 switches or muxes. Because of the limited pin
>count on the µP (Atmel AVR) I have to multiplex the switches to reduce the
>pin count. Does anyone know if there are switches with built-in latch (to
>hold the state while the other switches are controlled) and capable of
>withstanding the high signal voltages and cv's? I only found some
>(expensive) parts from analog devices but all without latch. Or is there a
>better solution?

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