> Subject: OP-Amp recommendation
> From:    "Tiago A." 
> Date:    Sat, 19 Jan 2013 22:16:39 -0100
>
> Hi.
>
> I=B4m looking a op-amp to do some tests:
>
> -Single 5V or 3.3V supply
> -PDIP package.
> -For L15B geophones, mainly for local events...up to 10Hz.
> -Only going to work with 1 channel.
> -The A/D is ADS1211P. http://www.ti.com/product/ads1211
>
> Does someone recommend a op-amp?
>
> Thanks.
>
> Best Regards.
> Tiago.

The best single-supply 3/5v rail-to-rail auto-zero
geoophone op-amp that I have found is the ada4528-1

http://www.analog.com/en/precision-op-amps/low-voltage-noise-amplifiers/ada4528-1/products/product.htm

It even gives great <0.1hz performance even at 10,000x gain.

Unfortunately it is only available in surface mount.  I have some
DIP8 carrier boards that I use to convert surface mount to DIP

http://cimarrontechnology.com/surfacemountadapters.aspx

I can provide an ada4528-1 on a DIP8 adapter for $10 plus shipping.

Dave

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