High speed read of bipolar signal, -> ADC (LTC1605)

ADC is up and running, at least, we receive data which matches the voltage on the multimeter :). I was planning on using a TXB0104 for the 5V to 3.3V conversion. That way, I can safely measure the 2 8bit streams. Since I have to wait for parts and we would like to keep our code-progress up, for today, a simple voltage divider will be attemped, 2 r's op 2k5 I thought were used. I'll keep you updated.

If someone has an idea on how to implement the discretized transferfunction, please inform me!

>> c2d(C,0.0001)
 
Transfer function:
 
                                                                                    
 7.716 z^7 - 37.57 z^6 + 73.23 z^5 - 71.39 z^4 + 34.81 z^3 - 6.785 z^2 - 0.001332 z 
                                                                                    
                                                                       - 1.96e-008  
                                                                                    
-------------------------------------------------------------------------------------
                                                                                     
z^7 - 3.882 z^6 + 5.648 z^5 - 3.652 z^4 + 0.8852 z^3 - 1.632e-005 z^2 + 1.002e-010 z 
                                                                                     
                                                                     - 2.053e-016