[sdiy] Sample & (infinite) Hold

[Seb Francis]

Mind you, if you had a S&H LFO running at 1Hz you would exceed 50,000 
cycles within a day ..

Seb Francis wrote:

> Min 50,000 programming cycles apparently .. the joys of modern EEPROM 
> technology :)
>
> Paul Schreiber wrote:
>
>> Question would be: how many *times* can you do this. I'm sure the 
>> intended use is 1 or 2 times *ever*. Doing it 10,000 times may not be 
>> spec'd.
>>
>> Paul S.
>>
>> ----- Original Message ----- From: "Heitor Alves" 
>> <heitor.alves at gmail.com>
>> To: "Synth-DIY List" <synth-diy at dropmix.xs4all.nl>
>> Sent: Friday, July 08, 2005 6:53 AM
>> Subject: [sdiy] Sample & (infinite) Hold
>>
>>
>>> Hi List!
>>>
>>> i've recieved the news from maxim-ic and they have produced a Sample
>>> and infinite hold chip (in SMT form only). Here's a description from
>>> the quick view of they website:
>>>
>>> The DS4303 is a nonvolatile (NV) sample and infinite-hold adjustable
>>> voltage reference. The reference voltage is programmed in-circuit
>>> during factory calibration/ programming. Programming the reference
>>> voltage, VOUT, is as simple as applying the desired voltage on VIN and
>>> toggling the adjust pin (ADJ-bar) to lock the VOUT voltage level
>>> indefinitely, even if the device is power cycled. The DS4303 replaces
>>> current cumbersome factory adjustment arrangements with a low-cost
>>> solution that can be adjusted using automated techniques. In addition,
>>> the DS4303 has the ability to be readjusted after the unit has been
>>> fully assembled and tested. This results in a much more flexible
>>> manufacturing arrangement, lower inventory costs, and a quicker
>>> time-to-market.
>>>
>>> http://www.maxim-ic.com/quick_view2.cfm/qv_pk/4672
>>>
>>> Would this be good for us (synth builders)? Since it replaces the
>>> Shunt Voltage reference diode.
>>>
>>> Lets ear your opinions!
>>>
>>> Thanx!
>>>
>>> Heitor
>>>
>>
>>
>>
>
>