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Thu May 8 13:50:30 EDT 2014

Low offset opamp replacement for LM324-N

LM324-N is cheap, works on a large voltage range, and can take in/out
to 0V.  However it has 2mV offset which is too much for precision
amplification.  A replacement can be LT1014[1].

Around $5-6 available in DIP[2].

Related: nulling LM324 offset voltages[3].

That refers to the TC914 chopper which seems obsolete.

And a related thread at the eevblog forum[4].

Linear might be useful for their liberal sample policy and good website[5].

[1] http://www.linear.com/product/LT1014
[2] http://www.digikey.com/product-detail/en/LT1014CN/296-14616-5-ND/555846
[3] http://www.datasheetarchive.com/LM324%20nulling%20offset%20voltages-datasheet.html
[4] http://www.eevblog.com/forum/projects/lm-324-upgrade/
[5] http://www.linear.com/parametric/Operational_Amplifiers_%28Op_Amps%29#!1076_yes!1030_|4!1004_%3E=24!1006_%3C=.2!gbw_!vsmax_24!ssupply_ssupply!sr_!ismax_!quad_quad!vos_.2!enoise_!vosdrift_!lfnoise_!ibias_!inoise_



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