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The NMUX1309BQ-Q100X is a dual 4-channel analog switch multiplexer and demultiplexer manufactured by Nexperia USA Inc. It operates within a supply voltage range of 1.5 V to 5.5 V and features bi-directional signal paths with rail-to-rail operation. The device integrates injection current control circuitry to isolate overvoltage spikes on disconnected pins, preserving measurement accuracy without external components. Digital inputs support 1.8 V logic thresholds across the full operating voltage range and are 5.5 V tolerant. It includes Ioff protection to prevent back-powering when VCC is unpowered. Qualified to AEC-Q100 Grade 1 standards, it utilizes a DHVQFN16 package (SOT763-1) suitable for automotive applications.
Verify the specific suffix 'X' indicates tape-and-reel packaging configuration as documented in distributor listings. Confirm the DHVQFN16 package type matches the SOT763-1 mechanical drawing requirements. Ensure the ordering code aligns with the -40 °C to +125 °C temperature range specified in the official datasheet. Cross-reference the manufacturer part number against the latest product change notices to confirm assembly site consistency.
Select this component when dual independent 4-channel switching is required within a single package footprint. It is appropriate for designs needing 1.8 V logic compatibility without translation circuits. Consider its injection current control capabilities if long trace inductance causes voltage spikes. Verify that the DHVQFN16 package dimensions fit the available PCB real estate constraints.
This part belongs to the NMUX1309-Q100 family, which extends digital logic thresholds for 1.8 V system compatibility. It serves as a dual-source replacement for industry-standard 4852 and 4052 analog switches while offering enhanced protection features. The BQ variant specifically denotes the DHVQFN16 package option within the broader NMUX1309 series lineup.
Direct pin-compatible replacements include the NMUX1309PW-Q100J in TSSOP16 format. Other family members like the NMUX1308 series offer different channel counts but share similar electrical characteristics.