74AHC1G66GV-Q100H

The 74AHC1G66GV-Q100H is a single-pole single-throw (SPST-NO) analog switch from Nexperia, part of the 74AHC1G66-Q100 series. It features a single analog switch circuit with very low on-resistance, typically 22Ω, and a wide supply voltage range from 2V to 5.5V. The switch is controlled by a digital enable input that is overvoltage tolerant up to 5.5V, allowing use in mixed-voltage environments.

Key specifications include a bandwidth of 280 MHz, fast switching times of 11 ns (ton and toff), and low off-state leakage current of 100 nA. The device provides robust ESD protection with HBM exceeding 2000V and CDM exceeding 1000V, and latch-up performance exceeds 100 mA per JESD 78 Class II Level A.

This switch is qualified to AEC-Q100 Grade 1, making it suitable for automotive applications. It operates over the full automotive temperature range of -40°C to 125°C. The device is available in the compact SC-74A (SOT-753) surface-mount package, ideal for space-constrained designs.

With its low power CMOS design, overvoltage tolerant inputs, and high noise immunity, the 74AHC1G66GV-Q100H is well-suited for analog signal routing, level translation, and audio/video switching in both automotive and industrial systems.