[sdiy] Sample & (infinite) Hold

[Seb Francis]

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
>>
>
>
>