NXP 74HC4851PW-Q100: A High-Performance Automotive-Grade 8-Channel Analog Multiplexer/Demultiplexer

In the demanding environment of modern automotive electronics, the need for robust and reliable signal routing components is paramount. The NXP 74HC4851PW-Q100 stands out as a premier solution, engineered specifically to meet the stringent requirements of the automotive industry. This device is an 8-channel analog multiplexer/demultiplexer designed to handle both digital and analog signals with high precision and low distortion.

A key feature of this IC is its automotive-grade qualification, ensuring exceptional performance under the harsh conditions typical of vehicular applications. It operates over a wide voltage range from 2.0 V to 10.0 V, providing significant flexibility for interfacing with various logic levels and analog sensors. The low "on" resistance of just 70 Ω (typical) at 4.5 V, coupled with minimal flatness, ensures minimal signal attenuation and distortion, which is critical for accurate data acquisition from sensors monitoring parameters like temperature, pressure, and position.

The device's architecture allows it to function as either a multiplexer or a demultiplexer, offering great design versatility. It features three digital select inputs (S0, S1, S2) and an active-low enable input (E), providing easy control over which channel is connected to the common output/input. The break-before-make switching action prevents momentary shorting between channels, thereby protecting sensitive circuitry.

Furthermore, the 74HC4851PW-Q100 is characterized by its very low quiescent current of 4.0 µA (maximum), making it an excellent choice for power-sensitive applications. Its high noise immunity and robust ESD protection (HBM: 2000 V) contribute to superior system reliability. Housed in a TSSOP16 package, it is suitable for space-constrained boards.

ICGOODFIND: The NXP 74HC4851PW-Q100 is an exceptional choice for automotive designers, offering high performance, reliability, and flexibility for complex signal routing tasks in advanced driver-assistance systems (ADAS), infotainment, and engine control units.

Keywords: Automotive-Grade, Analog Multiplexer, Low On-Resistance, Break-Before-Make, High Noise Immunity.