Multiplexed - Low-Level Function Card Overview

Low-level multiplexed systems have a single programmable gain, wide-band amplifier following the input multiplexer. To accommodate low-level signal signals such as those from strain gauges or thermocouples and at the same time high level signals from other sources, the throughput rate must be limited to enable the high bandwidth amplifier to settle to the correct value after switching to a new channel. This results in a relatively low aggregate throughput rate when compared to an amplifier-per-channel system. A major benefit of a well designed low-level multiplexed system is the extremely high performance/cost relationship.