NXP Semiconductors NX3L2G384GT,115

Overview

NX3L2G384GT,115 from NXP Semiconductors is a dual low-ohmic SPST analog switch with active-low enable inputs (1E, 2E), bidirectional signal routing between Y/Z terminals, 0.5 Ω typical ON resistance at 2.7 V and 4.3 V supply, Schmitt-triggered enable inputs for noise immunity, and operation across −40 °C to +125 °C. It enables high-fidelity audio and data path switching in space-constrained portable electronics.

For engineers reviewing the NX3L2G384GT,115 datasheet, NX3L2G384GT,115 pinout, NX3L2G384GT,115 application, or NX3L2G384GT,115 equivalent, key selection criteria include its 0.13 Ω ON-resistance flatness, 350 mA continuous switch current, 60 MHz −3 dB bandwidth, sub-10 ns disable time at 3.6 V, and IEC61000-4-2 4 kV contact ESD rating on switch ports.

Technical Context

The NX3L2G384GT,115 implements two independent CMOS transmission gates, each controlled by a dedicated active-low enable input with Schmitt-trigger hysteresis (≥0.3 V at VCC = 2.3 V). Its rail-to-rail analog signal handling supports voltages from GND to VCC without level-shifting circuitry.

Designed for low-voltage portable systems, it operates from 1.4 V to 4.3 V with TTL-compatible control inputs even when VCC = 3.0 V, and accepts digital input voltages up to 4.6 V - exceeding the supply rail - enabling direct interfacing with higher-voltage controllers.

Key Specifications

Pinout & Package

Package: XSON8 (SOT833-1), plastic extremely thin small outline package, no leads; 8 terminals; body dimensions 1.0 × 1.95 × 0.5 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog switch applications.

Compared with TXS0102DCUR and MAX4617EUA+, the NX3L2G384GT,115 delivers true rail-to-rail analog switching, 7× lower ON resistance than MAX4617EUA+ at 2.7 V, and full −40 °C to +125 °C qualification - making it uniquely suited for portable audio and harsh-environment sensor multiplexing where signal integrity and thermal robustness are critical.

Availability

NX3L2G384GT,115 is available at Aetrix Electronics and suitable for smartphone audio routing, portable media player signal switching, PDA touchscreen interface protection, and industrial handheld data logger multiplexing requiring stable component supply and long-term production continuity.

Supply support for NX3L2G384GT,115 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer applications.

The NX3L2G384GT,115 belongs to NXP's NX3L ultra-low-ohmic analog switch family, engineered specifically for high-fidelity, low-voltage portable electronics where minimal signal distortion, compact packaging, and robust ESD performance are mandatory.

FAQ

What is the maximum continuous current rating for each switch channel in the NX3L2G384GT,115?

The NX3L2G384GT,115 supports 350 mA continuous current per channel under a 3.3 V supply, as specified in the Limiting Values table. This rating applies to both forward and reverse current flow between Y and Z terminals, enabling use in bidirectional power path or LED current routing applications where thermal derating is managed within the 250 mW total power dissipation limit.

Does the NX3L2G384GT,115 support rail-to-rail analog signal transmission?

Yes, the NX3L2G384GT,115 allows signals with amplitude up to VCC to be transmitted bidirectionally between nY and nZ terminals. Its CMOS transmission gate architecture ensures full rail-to-rail analog pass-through without clamping or level shifting - a key requirement for preserving dynamic range in audio and sensor signal chains.

What is the operating temperature range certified for the NX3L2G384GT,115?

The NX3L2G384GT,115 is specified and qualified for operation from −40 °C to +125 °C, as confirmed in the Ordering Information table (Type number NX3L2G384GT, package XSON8, temperature range −40 °C to +125 °C). This extended range supports deployment in automotive cabin modules, industrial handhelds, and outdoor instrumentation where ambient temperatures exceed standard commercial limits.

How does the Schmitt-trigger action on the enable inputs benefit system design?

The Schmitt-trigger action on the 1E and 2E inputs of the NX3L2G384GT,115 provides ≥0.3 V hysteresis at VCC = 2.3 V, making the device tolerant to slow-rising or noisy control signals. This eliminates the need for external RC filtering or debouncing circuits when driven directly from microcontroller GPIOs or mechanical switches, simplifying layout and improving reliability in noisy portable environments.

Is the NX3L2G384GT,115 pin-compatible with other variants in the NX3L2G384 family?

No - the NX3L2G384GT,115 uses the SOT833-1 (XSON8) package with 1.0 × 1.95 × 0.5 mm body size, while NX3L2G384GD uses SOT996-2 (XSON8, 3.0 × 2.0 × 0.5 mm) and NX3L2G384GM uses SOT902-2 (XQFN8, 1.6 × 1.6 × 0.5 mm). Pin functions are identical across variants, but physical footprint and thermal characteristics differ significantly; PCB layout is not interchangeable.