Sorry that's a duel MCP3421 is the single $1.8 /100's

-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of
Marc Nicholas
Sent: 08 October 2013 21:25
To: Microcontroller discussion list - Public.
Subject: Re: [EE} MCP3221

Thanks, Steve. They're a bit pricey for my application (they appear to be
about $2.50), but look like a nice chip.

-m

On 2013-10-08, at 4:09 PM, "Steve Smith" <xygax@blueyonder.co.uk> wrote:

> Try an MCp3422 we have use on 2 projects as shunt amplifiers slow but=20
> very accurate...
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> Steve
>=20
> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On=20
> Behalf Of Marc Nicholas
> Sent: 08 October 2013 19:14
> To: Microcontroller discussion list - Public.
> Subject: [EE} MCP3221
>=20
> Howdy.
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> I'm in the market for an ADC.=20
>=20
> - Definitely want I2C as the device already has several devices on the
'bus'
> and we have good, stable I2C code (this is an ARM device)
> - 12-bits (or at least 10 'real' bits) would be preferred
> - Power consumption well below 1mA when converting
> - A standby/shutdown mode that has virtually no quiescent current
> - Small (< 10 mm^2 is preferable)
> - Around a buck in quantity 250
> - Neither sampling latency (I2C sees to that) or maximum samples per=20
> second are terribly important -- 1Hz updates would be just fine
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> The MCP3221 scores well (I2C, comes in a variety of addresses, is=20
> 12-bit(-ish), <250uA current, <1uA standby, SOT23-5, ~$1.40). And I've=20
> had decent luck with the cost-features-reliability trifecta with=20
> Microchip in the past.
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>> From a search of my mailbox, I see Mr. Axtell used to use these parts=20
>> --
> any comments?=20
>=20
> Any other recommendations?
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> TIA.
>=20
> -m
>=20
>=20
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