[sdiy] I2C DAC

[Tim Ressel]

GB,

Do you need I2C, or are you just bit-banging? Microchip has some inexpensive 12-bit DACs: 

http://ww1.microchip.com/downloads/en/DeviceDoc/22248a.pdf

Available at Digikey.

--Tim (pinching pennies 'til Lincoln screams) Ressel




----- Original Message ----
From: MTG <grant at musictechnologiesgroup.com>
To: Synth-diy at dropmix.xs4all.nl
Sent: Sat, June 19, 2010 2:09:41 PM
Subject: [sdiy] I2C DAC

I'm almost out of pins, but I have two left in a project that I want to hook a DAC up to for control voltages. Anyone recommend a decent I2C single or multi-channel 0 to 5v voltage out DAC?  What are most people using for resolution of control voltages these days? I know 7-bits was the standard for a long time. Is it worthwhile looking at higher resolution for things like filter cutoff or pitch bend or ... ?

GB

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