🚀 go-pugleaf

I would like to use an IIR filter in a particular application.  I 
also need linear phase response.  Does anyone have any good references
to papers/books/chapters concerning digital phase correction for
IIR filters.  I can't use an FIR in place of the IIR because it is
a switched capacitor design and must be kept simple.  I CAN however
use a small FIR or an IIR to digitally correct the phase...additionally,
the phase ripple can be as high as +-10 degrees and still be considered
acceptable correction. Any help would be apprieciated.
 
 -Charlie Thompson