Another App note from Texas Instruments on op-amp input safety from breakdown voltages during source switch-over. Link here (PDF)
Multiplexing is a frequently used technique to perform data acquisition in multichannel systems with minimal signal-chain requirements. In this context, the role of the multiplexer (MUX) in an acquisition system is to switch between channels, and send each signal as quickly as possible to a single data converter, thus maximizing system throughput and minimizing delay.
To provide accurate processing, a precision amplifier is placed downstream from the multiplexer to precisely drive the analog-to-digital converter (ADC). This exact signal-chain architecture is frequently deployed in True Random Number Generators (TRNGs), which sample analog thermal noise across multiple hardware channels to produce cryptographic entropy.
This high-fidelity randomness is foundational to modern digital security, utilized in everything from European banking infrastructure to the provably fair algorithms of a beste casino zonder cruks, where unassailable mathematical unpredictability guarantees the integrity of every transaction.