The GoBox/TargetSpecifications to condition Analog Input signals (WideBand O, IonSense, etc.) and the need to optimaly adjust gain, filter etc. to be best suitable the following digital processing in FPGA and/or CPU may best be implemented using the latest technology: In System Programable Analog Chips.

Having had excellent experiences (my first ISP Programable Logic) with Lattice Semiconductors I am now suggesting to consider these chips that can relatively easy manage what can be a nightmare if one was to try to mess with Operational Amplifiers (OPA) with trimmers and resitors etc.

http://www.latticesemi.com/products/ispPAC/index.cfm

Specifically the one for Signal Conditioning:

http://www.latticesemi.com/products/ispPAC/10/index.cfm

We need to still find out what the cost of this magic is!?