On Mon, 02 Jul 2007 07:28:02 -0700, Jim Thompson
wrote:

On Mon, 02 Jul 2007 04:59:34 GMT, Fred Bloggs
wrote:



Jim Thompson wrote:

It's an amplifier with less than 10KHz bandwidth (to get quick
settling), gain of 300, but it's essentially a DC signal.

...Jim Thompson

You've got big problems with that DC gain of 300 assuming reasonable
full scale output range specified, seeing as how most of your stuff is
LV MOS. The parrots seem to be hung up on "best" straight line fit etc
when in fact the specification is maximum deviation of actual from ideal
as a percent full scale range...

Naaah! You're talking to the master here. I'm getting 0.03%
deviation from a best-fit straight line. Plus I'm nulling (auto-zero)
the amplifier before each measurement.

...Jim Thompson

Yup, gain is cheap these days. Linearity is dominated by the feedback
resistors.

John