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Source for ADXL202eb ??? — Parallax Forums

Source for ADXL202eb ???

ArchiverArchiver Posts: 46,084
edited 2001-06-19 12:13 in General Discussion
Does anyone know where I can buy more than 1 at a time.


I left my stamp project plugged into a tripplite surge suppressor that was
switched off while I was out of town for the week. When I returned MY
adxl202 will only give me an accurate x axis reading if the y axis is tilted
45 degrees. I will assume that the sensor was damaged by lightning from
tropical storm Allison.
In any event, Analog devices limits you to single piece purchases of
evaluation boards. That is $41 per copy when you add the $11 shipping. Why
the tight rein on the evaluation boards?
Is there an alternative sensor that might be more durable than the analog
version? All of the other components on the breadboard survived the "event"

Thanks

Jeff

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2001-06-19 05:35
    Jeff,

    The 202 is the state-of-the-art presently, with the 202e available in a chip
    scale package which is as small as you can go without specialized
    chip-on-board, etc. They're pretty durable if you don't drop them on a
    hard surface.

    I suspect the single piece eval board philosophy is based on the idea that
    buyers will generate a cool application from prototyping on the eval board,
    and then purchase the 202 chips in large quantities. You might find it cost
    effective to design a small circuit board instead of buying more eval
    boards, and have it built by one of the prototype houses discussed
    frequently on this list. If so, sell it to the rest of us [noparse]:)[/noparse] .

    I'll be doing something similar later this summer, thanks to a new SBIR
    grant from the NIH.

    Dennis
    WSR Inc
    Pasadena CA

    Original Message
    From: Jeff & Julia [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=lGreGm8A3pKROwi4W3pklV5YkHalUeJdXA1CwHnGEhPrACoklKvVJ46AjphQEbY4Ywd4mSBx42Tw]EL-JEFE@P...[/url
    Sent: Monday, June 18, 2001 9:51 AM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] Source for ADXL202eb ???


    Does anyone know where I can buy more than 1 at a time.


    I left my stamp project plugged into a tripplite surge suppressor that was
    switched off while I was out of town for the week. When I returned MY
    adxl202 will only give me an accurate x axis reading if the y axis is tilted
    45 degrees. I will assume that the sensor was damaged by lightning from
    tropical storm Allison.
    In any event, Analog devices limits you to single piece purchases of
    evaluation boards. That is $41 per copy when you add the $11 shipping. Why
    the tight rein on the evaluation boards?
    Is there an alternative sensor that might be more durable than the analog
    version? All of the other components on the breadboard survived the "event"

    Thanks

    Jeff


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  • ArchiverArchiver Posts: 46,084
    edited 2001-06-19 12:13
    Here in australia I can by them 1 at a time from the local distributor. they
    have a minimum order value but a single chip is worth more than that so its
    not a problem .
    They told me that analog devices is one of the few companys that allow the
    distributors to break the packs they come in.

    Maybe you could check the local distributors in your area??

    As for making your own board its very easy as its only 3 caps and 1 resistor
    needed. I have a basic PCB on my web site.

    Also maybe you might want ot check my home page and see what im trying to do
    with the chip. ( maybe give some sugestions.)
    http://members.optushome.com.au/progers

    Regards

    Peter Rogers
    Original Message
    From: "Dennis P. O'Leary" <doleary@h...>
    To: <basicstamps@yahoogroups.com>
    Sent: Tuesday, June 19, 2001 2:35 PM
    Subject: RE: [noparse][[/noparse]basicstamps] Source for ADXL202eb ???


    > Jeff,
    >
    > The 202 is the state-of-the-art presently, with the 202e available in a
    chip
    > scale package which is as small as you can go without specialized
    > chip-on-board, etc. They're pretty durable if you don't drop them on a
    > hard surface.
    >
    > I suspect the single piece eval board philosophy is based on the idea that
    > buyers will generate a cool application from prototyping on the eval
    board,
    > and then purchase the 202 chips in large quantities. You might find it
    cost
    > effective to design a small circuit board instead of buying more eval
    > boards, and have it built by one of the prototype houses discussed
    > frequently on this list. If so, sell it to the rest of us [noparse]:)[/noparse] .
    >
    > I'll be doing something similar later this summer, thanks to a new SBIR
    > grant from the NIH.
    >
    > Dennis
    > WSR Inc
    > Pasadena CA
    >
    >
    Original Message
    > From: Jeff & Julia [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=ulaHZCeDcSfBAJTRQ627BcQyv3Z58h-R4W2X3Itwvx4HE5IzzWPiabs0E4NXBl9Y7cDiScTgT_md]EL-JEFE@P...[/url
    > Sent: Monday, June 18, 2001 9:51 AM
    > To: basicstamps@yahoogroups.com
    > Subject: [noparse][[/noparse]basicstamps] Source for ADXL202eb ???
    >
    >
    > Does anyone know where I can buy more than 1 at a time.
    >
    >
    > I left my stamp project plugged into a tripplite surge suppressor that
    was
    > switched off while I was out of town for the week. When I returned MY
    > adxl202 will only give me an accurate x axis reading if the y axis is
    tilted
    > 45 degrees. I will assume that the sensor was damaged by lightning from
    > tropical storm Allison.
    > In any event, Analog devices limits you to single piece purchases of
    > evaluation boards. That is $41 per copy when you add the $11 shipping.
    Why
    > the tight rein on the evaluation boards?
    > Is there an alternative sensor that might be more durable than the analog
    > version? All of the other components on the breadboard survived the
    "event"
    >
    > Thanks
    >
    > Jeff
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed with. Text in the Subject
    > and Body of the message will be ignored.
    >
    >
    > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed with. Text in the Subject
    and Body of the message will be ignored.
    >
    >
    > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
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