Sean Breheny wrote:
> Hi Martin,
> 
> On Fri, May 9, 2008 at 10:11 AM, Martin <martin@nnytech.net> wrote:
>>  The input opamp is an LMC6042AIN. I need the extremely low input bias
>>  current spec. so I can't use a controlled-gain amplifier i.e. LTC6910.
> 
> Why can't you use the 6042 to buffer the signal and then use a
> variable-gain amplifier after that?
> 
> Sean

The input stage has a high dynamic range. We'll see if it works.
-
Martin
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