NMUX1309BQX

Overview

The NMUX1309BQX is a general-purpose, CMOS, bi-directional dual 4-channel analog switch manufactured by Nexperia. It operates within a supply voltage range of 1.5 V to 5.5 V and features two common inputs/outputs (nZ) and eight independent inputs/outputs (nY0 to nY3). The device integrates injection current control circuitry to isolate overvoltage spikes on disconnected pins, preserving measurement accuracy without external clamping components. Digital control pins support 1.8 V logic thresholds across the full operating voltage range and are 5.5 V tolerant. The component is housed in a DHVQFN16 package (SOT763-1) with dimensions of 2.5 mm x 3.5 mm x 0.85 mm.

Feature Summary

• Dual SP4T-Z functionality with rail-to-rail operation on analog signal pins
• Integrated injection current control to prevent coupling of overvoltage spikes
• 1.8 V digital logic threshold compatibility across the entire VCC range
• Ioff protection circuitry isolates digital and analog pins from the supply rail when unpowered

Applications

• Analog or digital multiplexing and demultiplexing
• System monitoring and diagnostics
• Enterprise computing systems
• Appliance control circuits

Procurement Notes

Verify the specific ordering suffix BQ against the manufacturer's official documentation to confirm the DHVQFN16 package type and temperature range specifications. Ensure that the procurement channel provides traceability to the original manufacturer, Nexperia, to guarantee component authenticity and compliance with RoHS directives.

Selection Notes

Select this component for designs requiring dual 4:1 switching with low-voltage GPIO compatibility. The integrated injection current control eliminates the need for external overvoltage clamp networks. Verify that the application environment remains within the specified -40 °C to +125 °C operating temperature range and that the supply voltage does not exceed 5.5 V.

Part Context

This part belongs to the NMUX130x family of CMOS analog switches, which includes the NMUX1308. The NMUX1309 specifically offers dual 4-channel configuration, whereas the NMUX1308 provides an 8-channel single-pole configuration. Both variants share similar electrical characteristics and pinout compatibility with industry standard 4052 and 4852 devices.

Replacement Considerations

The NMUX1309 is pin-compatible with industry standard 4052 and 4852 analog switch products. Designers replacing legacy parts should verify that the existing board layout supports the required 1.8 V logic levels and that the power sequencing accommodates the Ioff protection features.