Did you look at the AD1555 ? It produces a digital bitstream, which you could feed into your own FPGA based filter.
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17 years ago
What is the jelly bean DAC du jour?
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17 years ago
Thanks. It looks like a nice chip, but at $81 each, my 12 channels would be about $950 over budget. I'm guessing it's an older design.
Regards, Tony Tony (remove the "_" to reply by email)
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17 years ago
What the world needs is an 8 bit version of the TDA8444 (I2C in, 8 x 6 bit analog out, costs next to nothing) M
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17 years ago
It's around $2 a pop, not exactly "nothing" for an octal 6-bitter. Here is an octal 8-bit DAC for less (around $1.50):
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-- Regards, Joerg http://www.analogconsultants.com
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17 years ago
Almost got interested in that one (I use the 8444 in all sorts of things and wouldn't mind the extra resolution) but the Rohm part seems to be unobtanium (in findchips). Where can these beasties be found in non-enormous quantities for a buck and a half ? cheers M
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17 years ago
Don't know about non-enormous quantities but Digikey has 7500 of them in stock. $1.45/2500. Usually my clients go through that qty in a jiffy.
-- Regards, Joerg http://www.analogconsultants.com