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David,

Read the datasheet. It will do 0-5V, 0-20mA, and 4-20mA. You can use the
0-5V out,
but you'll need an op-amp to drive ANY voltage out. Unity gain for 0-5V and
2xgain for 0-10V.
Digi-Key, Mouser, Newark and others carry the AD420 family. It comes in
24-pin PDIP and SOIC.

Chuck
----- Original Message -----
From:
To:
Sent: Sunday, July 19, 2009 5:27 PM
Subject: Re: [BasicX] 4-20mA output/0-10 V output
> thanx, chuck, that looks like solving the problem...
> What if I want a 0-10V output pin?
> Regards
>
> David
> Citando PFiX Controls :
>
>> David,
>>
>> I have used the AD420... component for years with great success!
>> Single unit prices are about $19 per component, but you get what you pay
>> for.
>> It requires using 3 BX pins for SPI comm with the chip. Sending it a zero
>> results in 4mA output. Sending it 65535 results in 20mA output. No need
>> for
>> calibration. Needs 4 ceramic caps. This is a very good chip.
>>
>> Let me know if you want to use it, I have lots of software and
>> experience.
>>
>> Chuck
>> ----- Original Message -----
>> From:
>> To:
>> Sent: Sunday, July 19, 2009 12:31 PM
>> Subject: [BasicX] 4-20mA output
>>> Hello group
>>> I'm tryng to use Bx24 in a project that requires that one of the BX
>>> output pins delivers 4-20mA...
>>> Any ideas on how this can be done?
>>> Thanks
>>> Regards
>>>
>>> David Mendes
>>>
>>>
>>>
>>>
>>> ------------------------------------
>>>
>>>

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