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Old 14th December 2010, 05:29 PM   #31
carpin is offline carpin  Netherlands
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Quote:
Originally Posted by jackinnj View Post
Application Note 124 "775 Nanovolt Noise Measurement for a Low Noise Voltage Reference"
http://cds.linear.com/docs/Applicati...ote/an124f.pdf

See the first page of this topic

New DIY Project for measuring noise : 10Hz..100kHz LNA // 1MHz RMS-DC converter
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Old 14th December 2010, 08:34 PM   #32
carpin is offline carpin  Netherlands
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The buyers list


Frex 1 France
Carpin 2 Netherlands
MRupp 1 Germany
Andrew T. 1 UK
grenert 1 USA
AR2 1 USA
ccliu 1 Taiwan
musafir 1 Italy
Valeriano 1 Italy
Mother of PEARL 2 Canada
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Old 15th December 2010, 08:50 AM   #33
AndrewT is offline AndrewT  Scotland
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What's the rush for? It is just 10 days since post19 confirmed the latest design.
Let the list invitation run until end of January, at least.

I would like all the "special" ICs included in the parcel. That will take time, if Frex is willing.
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regards Andrew T.

Last edited by AndrewT; 15th December 2010 at 08:53 AM.
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Old 15th December 2010, 10:15 AM   #34
carpin is offline carpin  Netherlands
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Quote:
Originally Posted by AndrewT View Post
What's the rush for? It is just 10 days since post19 confirmed the latest design.
Let the list invitation run until end of January, at least.

I would like all the "special" ICs included in the parcel. That will take time, if Frex is willing.

There is no rush, it's just a list with buyers.
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Old 15th December 2010, 03:33 PM   #35
Frex is offline Frex  France
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Hello AndrewT (and the others!),

Sorry, but i don't provide parts for this design.
Normally, no parts are hard to find.
You can find all in these vendors;
Farnell(Newark), Mouser, Digikey. All allow personnal account order.
Maybe, you can also do a group buy with others DIYers for the electronics parts...

The group-buy is open until early January.
This give the time for others DIYers, and time for me too...
I prepare to launch my own web site for 2011, and it need time.
You will learn more about that soon.

As said AR2, the wiki is just a list, i ask all the payment (Paypal) when i will be ready. A full designing files folder is sent also when payment is done.
Thank you all for your enthusiasm

FRex.
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Old 4th January 2011, 12:51 AM   #36
carpin is offline carpin  Netherlands
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Update from Frex

Last comment by Frex on 3rd January 2011 at 08:35 PM #1


Hello and happy new year to everybody.

At this time, 17 PCB has been pre-ordered.
I will close the pre-order list very soon.
In order to send the Paypal invoice to all buyers, please send me a private message (or e-mail if you have it) with your personal e-mail address.

Thank you.

Frex.

Link message
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Old 4th January 2011, 09:43 PM   #37
matejS is offline matejS  Slovenia
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I see AD8597 was used. Good choice.... however, my supplier (Farnell) does not have it on stock in EU (and shipping from USA costs 25EUR). Any good alternatives?
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Old 5th January 2011, 06:36 AM   #38
Frex is offline Frex  France
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Hello matejS,

The AD8597 are used for the high gain, low noise 80dB LNA input stage. I 've designed the PCB to allow solder DIP or SOIC single OPAMP.
For the LNA input (AD8597), you can use AD8597(SOIC8) or LT1028(DIP). These two parts are the best.
Of course, you can use others, cheaper, OPAMP, but you must take care to it's noise specs and gain-bandwidth product.
Regards.

Frex
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Old 12th January 2011, 10:59 AM   #39
Frex is offline Frex  France
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Hello,

All Paypal invoices were sent (except for Fizfish because no e-mail).
I will send the PCB order to PCBcart as soon all payments will be done.
The full design folder will be sent by e-mail only at the end of the week to buyers.
Note that if you don't have receive the Paypal asking of payments, please e-mail or PM me.
You can follow the wiki page to see buyers payments status.
It is HERE.

Thank you.
Regards.

Frex.
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Old 24th January 2011, 05:48 PM   #40
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Hello Frex,

Just sent a PM. Apologies for the delay.

Thanks,
Dave
fitzfish
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