Many analog signals are converted to digital signals for transmission. In many
cases the output from a sensor can be converted directly into a digital signal,
such as with capacitive sensors. The value of capacitors can be accurately sensed
using digital techniques, eliminating the need for analog amplification, but conditioning
of the sensor is still required. Resistive-type devices can also be sensed
directly using digital techniques, but again temperature compensation of the
sensor is required. However, in the digital domain, all the conditioning can be
performed by the processor in the controller, using software or look-up tables.