Abstract: It is incredible how many programmable logic controls (PLCs) around us make our modern life possible and pleasant. Machines in our homes heat and cool our air and water, as well as preserve and cook our food. This tutorial explains the importance of PLCs, and describes how to choose component parts using the parametric tools on the Maxim's website.Maxim > Design Support > Technical Documents > Application Notes > A/D and D/A Conversion/Sampling Circuits > APP 4490 Maxim > Design Support > Technical Documents > Application Notes > Amplifier and Comparator Circuits > APP 4490 Maxim > Design Support > Technical Documents > Application Notes > Analog Switches and Multiplexers > APP 4490 Keywords: programmable logic control, PLC, automation, closed loop control, process machine, ADC, DAC, A/D, D/A, parameter, switch, signal chain Mar 29, 2012 APPLICATION NOTE 4490 How Signal Chains and PLCs Impact Our Lives By: Bill Laumeister, Strategic Applications Engineer Mar 29, 2012 Abstract: It is incredible how many progr……