DG409CY

Dual 4-Channel CMOS Analog Multiplexer/Demultiplexer manufactured by Maxim Integrated (onsemi / Analog Devices). This high-performance linear integrated circuit integrates two separate, independent 4-channel analog switching networks regulated by a shared 2-bit binary address decoder and an active-high Enable line inside a standard 16-pin plastic small outline surface-mount (SOIC-16) package. It functions by cleanly routing bipolar or single-ended analog waveforms (such as sensor currents or high-fidelity audio signals) bidirectionally between dual common outputs and four separate input lines per channel, delivering an ultra-flat on-resistance profile (<100 Ω) and micro-level charge injections (<15 pC) without causing signal clipping or background distortion. It is ubiquitously implemented inside professional multi-channel audio recording mixers, medical diagnostic ultrasound probes, automated test equipment (ATE) data paths, and multi-zone factory environmental sensors. (Industry Equals: Maxim DG409CY, Analog Devices DG409CY+, Vishay DG409CY, Intersil DG409CY, Renesas DG409CYZ, Texas Instruments DG409CY). [1, 2]