V G  wrote:
> The output from my ECG (instrumentation amplifier) has somewhat of a DC b=
ias
> to it.
>
> I would like to get rid of that DC bias and apply a low frequency high pa=
ss
> filter of about 0.3 Hz to it.
>
> However, filters for such extreme values tend to require high ceramic
> capacitor values of 1 or 10 uF to avoid impedance issues and I'm SERIOUSL=
Y
> having trouble finding these capacitors at a reasonable price anywhere. O=
r
> is there ANOTHER type of capacitor I can use (not ceramic)?
>
> Or is there another way to go about this?
> --

Yes. You can use LTC2053 instead of LT1168.
LTC2053:
CMRR is typically 116dB.
Average Input Offset Current s typically  1nA.

LT1168
CMRR 90dB Min
--=20
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