I'm trying to read multiple sensors with a single precision ADC, but I don't know if my designs are correct. The idea is to expand the number of temperature sensors (32 LMT70A) that a microcontroller with a limited number of analog ports can process. The datasheet mentions that enable pin allows multiple sensors to share one ADC channel and when T_ON is set to a logic "LOW" the TAO pin is set to a high impedance state. The following schematic shows how I was planning to build the circuit, but for now only with four sensors.
Are there any special considerations I must follow? Are there any other components I need to place on the circuit?