Oh, I caught transformer and toroid, and not amperage. Afraid my=20
hobbyist background can't be of much help. But in particular if you will=20
have more than a few of these close together, that chip sounds good. A=20
pair of pigtails, connector, or screw terminals in and out. The sparkfun=20
board looks nice, there are some interesting comments there. Depending=20
what the rest of the project looks like, might just get chips, and mount=20
them on one PCB with ADC, CPU, display, etc.

On 1/19/13 4:11 PM, IVP wrote:
>> There was an article in Circuit Cellar (or maybe it was Nuts & Volts) a
>> few years back, using a Toroid with a few wraps of the 120volt load
> I'm looking at making an isolated ammeter using the ACS712
> and an LM358
>
> http://www.allegromicro.com/Products/Current-Sensor-ICs/Zero-To-Fifty-Amp=
-Integrated-Conductor-Sensor-ICs/ACS712.aspx
>
> The ACS712 range has 3 versions, +/-5A, +/-20A, +/-30A
>
> https://www.sparkfun.com/products/8882
>
> Joe
>

--=20
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