[sdiy] New Sample & INFINITE Hold chip!

[Peter Ullrich]

Hi!

Maxim announces a nice Sample & Hold Chip that solves the old problem of 
limited hold times:

The DS4303R offers a sample & infinite hold.
This is done via an ADC for sampling, a nonvolatile memory (so you can 
even switch off your synth and the value is still stored) and a DAC
for the output. The resolution is 12Bit and gives +/- 1mV resolution.

The available part is designed for a supply of +2.4 to 3.6volts but there
will be a part for +4 to +5.5 volts.

Bad news: It has a very small 5-SOT23 package so breadbording is a 
little bit difficult - but possible.
The EEPROM storage is 50000 times minimum...
What happens after that? For synths it would be no problem ff only the EEPROM
storage is not working - so after switching off the voltage is not stored - but
if the normal operation (without nonvolatile storage) would be not possible -
this would be really bad... Let's try it out.


You can get free samples and a free evaluation board here:
http://www.maxim-ic.com/quick_view2.cfm/qv_pk/4672

Ciao
Peter

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                               Ing. Peter Ullrich   
	               Hardware & Software Developer  /  Electronic Musician
                               Private Homepage: http://www.ullrich.at.tt
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