Nice, but pricey. And having been burned by Maxim's supply issues=20 before, the PIC route is much more appealing. On 4/11/2012 3:27 PM, jim@jpes.com wrote: > Neil, > > Maybe something like this... > > http://www.maxim-ic.com/app-notes/index.mvp/id/4627 > > Regards, > > Jim > >> -------- Original Message -------- >> Subject: [EE] Simple D/A converter? >> From: Neil >> Date: Wed, April 11, 2012 12:20 pm >> To: piclist@mit.edu >> >> >> Hi all, >> >> Can any of you recommend a D-to-A converter with a single-wire >> digital-side interface? As small as possible -- roughly SOT23-5 to >> SSOP-8 would be good, 5V powered, 0-5V output (I'll actually do 0.5V to >> 4.5V output with it). >> >> Summary is that I need to add an analog output to an existing >> PIC16F883-based circuit (already working on PCB), but only have one >> general-purpose I/O available, and no PWM pins available. I can get >> tons of I2C, SPI or other D/A converters, but not finding anything with >> actual single-wire serial. FWIW, there's too much going on in the chip >> to get any decent bit-banged PWM. >> >> I can do this with a small PIC, but since I only need 25 or so of these, >> I thought I'd check to see if anyone here knows of a purpose-built chip >> for this, so that I can save coding time. >> >> Cheers, >> -Neil. >> >> --=20 >> http://www.piclist.com PIC/SX FAQ& list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .