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NXP Semiconductors NX3L2T384GM,125
- Part No.:
- NX3L2T384GM,125
- Manufacturer:
- NXP Semiconductors
- Package:
- 8-XFQFN Exposed Pad
- Datasheet:
-
NX3L2T384GM,125.pdf
- Description:
- IC SW SPST-NCX2 750MOHM 8XQFNU
- Quantity:
- Payment:
- Shipping:
Inventory:4,775
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Product details
Overview
NX3L2T384GM,125 from NXP Semiconductors is a dual low-ohmic SPST analog switch with active-low enable inputs, 0.5 Ω typical ON resistance at 2.7 V and 4.3 V supply, ±350 mA continuous current handling, and operation across −40 °C to +125 °C. It enables bidirectional signal routing (nY ↔ nZ) up to VCC amplitude in portable audio and data interface paths.
For engineers reviewing the NX3L2T384GM,125 datasheet, NX3L2T384GM,125 pinout, NX3L2T384GM,125 application, or NX3L2T384GM,125 equivalent, key selection criteria include its 1.4–4.3 V wide supply range, 1.8 V logic compatibility at 3.6 V VCC, Schmitt-triggered enable inputs for slow-edge tolerance, and XQFN8 package with 1.6 × 1.6 mm footprint for space-constrained portable designs.
Technical Context
The NX3L2T384GM,125 integrates two independent CMOS transmission gates, each controlled by an active-low enable (nE) with Schmitt-trigger input threshold-ensuring robust switching despite slow-rising/falling digital control signals. Its rail-to-rail analog signal capability supports bidirectional transmission of voltages from GND to VCC without level-shifting.
Designed for low-distortion signal routing, it delivers 60 MHz −3 dB bandwidth, <0.02% THD at 2.3 V and above, −90 dB OFF-state isolation, and only 3–6 pC charge injection-making it suitable for audio, sensor multiplexing, and precision ADC/DAC interface applications where signal integrity is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.4 V to 4.3 V - Enables direct use with 1.8 V, 2.5 V, 3.3 V, and 4.2 V battery rails without regulators. |
| ON Resistance (typ) | 0.50 Ω at VCC = 2.7 V and 4.3 V - Minimizes voltage drop and power loss in high-current signal paths (e.g., audio line drivers). |
| ON Resistance Flatness | 0.13 Ω at VCC = 2.7 V - Ensures consistent attenuation across full signal swing, preserving waveform fidelity. |
| Enable Propagation Delay | 22 ns (typ) at VCC ≥ 2.7 V - Supports fast switching in real-time multiplexing (e.g., touch screen channel selection). |
| ESD Protection | HBM >7500 V, IEC61000-4-2 contact >4000 V - Eliminates need for external ESD diodes in handheld device front-end circuits. |
| Operating Temperature | −40 °C to +125 °C - Qualified for extended industrial and automotive cabin-adjacent environments. |
| Switch Current Rating | ±350 mA continuous - Sufficient for driving headphones, piezo buzzers, or sensor excitation loads directly. |
Pinout & Package
Package: XQFN8 (SOT902-2), plastic extremely thin quad flat package; no leads; 8 terminals; body 1.6 × 1.6 × 0.5 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1Z, 2Z | Switch terminal (channel 1/2) | Bidirectional analog I/O; connects to load/sensor/ADC input; rated for VCC-referenced signals. |
| 1Y, 2Y | Switch terminal (channel 1/2) | Bidirectional analog I/O; pairs with corresponding Z pin; interchangeable directionality per channel. |
| 1E, 2E | Active-low enable input | Schmitt-triggered; accepts logic HIGH >1.3 V (VCC ≥2.7 V); enables channel when LOW. |
| VCC | Positive supply | Reference for analog signal range and internal logic; must be stable within ±5 % for specified RON. |
| GND | Ground reference | Common return for analog signals, digital inputs, and supply current; requires low-impedance PCB connection. |
Key Features
| Feature | Design Value |
|---|---|
| 1.8 V logic compatible at 3.6 V VCC | Enables direct interfacing with low-voltage microcontrollers without level shifters-reducing BOM count and layout area. |
| Control input voltage tolerance | Accepts input voltages up to VCC + 0.5 V-prevents damage during hot-insertion or mixed-supply sequencing. |
| Low supply current | ≤150 nA ICC at VCC = 4.3 V - Extends battery life in always-on sensor monitoring or standby audio paths. |
| High noise immunity | Input hysteresis >0.4 V (Schmitt trigger) - Rejects EMI-induced glitches on enable lines in noisy portable environments. |
| Latch-up immunity | Exceeds 100 mA per JESD78B Class II Level A - Guarantees robust operation under transient overvoltage or ESD stress. |
Applications
| Smartphone Audio Routing | Portable Media Player Signal Switching |
|---|---|
Use Scenario: Selecting between stereo headphone output and mono speaker output in a single-chip audio subsystem. IC Role / Device Role / Timing Role: Dual SPST analog switch providing low-loss, low-crosstalk path selection under GPIO control. Use Value: 0.5 Ω RON and −90 dB isolation prevent audible distortion or bleed between outputs; 1.4–4.3 V supply supports Li-ion battery voltage sag. |
Use Scenario: Multiplexing line-in, mic-in, and DAC output signals onto shared codec interface pins. IC Role / Device Role / Timing Role: Bidirectional analog switch enabling flexible signal path reconfiguration via firmware. Use Value: 60 MHz bandwidth preserves full audio spectrum fidelity; 3 pC charge injection avoids DC offset in sensitive microphone bias paths. |
| PDA Touchscreen Channel Selection | Wearable Sensor Interface Multiplexing |
Use Scenario: Routing X/Y electrode signals from resistive touchscreen controller to ADC inputs in sequential scan mode. IC Role / Device Role / Timing Role: Low-RON analog switch acting as programmable front-end multiplexer for high-impedance sensor nodes. Use Value: 22 ns enable time allows sub-μs channel settling; 0.13 Ω RON flatness ensures linear touch coordinate mapping across full voltage range. |
Use Scenario: Sharing a single ADC input among multiple biosensors (ECG, SpO₂, temperature) in compact wearable form factor. IC Role / Device Role / Timing Role: Precision analog switch isolating sensor channels during measurement to prevent cross-talk and loading. Use Value: −90 dB OFF isolation eliminates inter-channel interference; 1.4 V minimum VCC supports ultra-low-power coin-cell operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXS0102DCUR | 2-channel bidirectional level translator (not analog switch); no rail-to-rail analog pass-through; max VCC = 5.5 V but no guaranteed RON <1 Ω below 2.5 V. | Designed for digital signal translation only; unsuitable for analog audio or sensor signal routing due to non-linear conduction and limited bandwidth. | Select only if digital-level shifting-not analog signal switching-is required; verify logic thresholds match host MCU. |
| MAX4617EUA+ | Single SPST switch; 3.5 Ω typical RON at 5 V; −40 °C to +85 °C only; no Schmitt-trigger enable; larger μMAX-8 package (3 × 3 mm). | Higher RON increases insertion loss in audio paths; narrower temp range limits use in automotive-adjacent wearables; lacks slow-edge tolerance. | Consider only for legacy designs requiring pin-compatible replacement with relaxed performance; not recommended for new portable audio designs. |
Compared with TXS0102DCUR and MAX4617EUA+, the NX3L2T384GM,125 uniquely combines sub-0.5 Ω RON, 1.4–4.3 V operation, Schmitt-triggered enables, and XQFN8 size-enabling high-fidelity analog routing in next-gen compact, battery-powered systems without trade-offs in signal integrity or thermal footprint.
Availability
NX3L2T384GM,125 is available at Aetrix Electronics and suitable for smartphone audio routing, portable media player signal switching, PDA touchscreen channel selection, and wearable sensor interface multiplexing requiring stable component supply across industrial temperature ranges.
Supply support for NX3L2T384GM,125 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 NX3L2T384GM,125 belongs to NXP's NX3L low-voltage analog switch family, engineered specifically for energy-efficient, space-constrained portable electronics requiring rail-to-rail analog signal integrity and robust digital control interoperability.
FAQ
What is the maximum continuous current rating for the NX3L2T384GM,125?
The NX3L2T384GM,125 supports ±350 mA continuous current per channel at 3.3 V supply, verified across −40 °C to +125 °C. This rating applies to both source and sink configurations, enabling direct drive of headphones, buzzers, or sensor excitation circuits without external buffering. Peak pulsed current reaches ±500 mA for ≤1 ms duration at <10 % duty cycle.
Does the NX3L2T384GM,125 require external level translation when driven by a 1.8 V microcontroller?
No-the NX3L2T384GM,125 features 1.8 V logic compatibility at VCC = 3.6 V, with VIH = 1.3 V (min) and VIL = 0.5 V (max). Its Schmitt-triggered enable inputs tolerate slow edges and accept 1.8 V signals directly, eliminating external level shifters in mixed-supply portable systems. This capability is confirmed in Table 7 of the official NXP datasheet Rev. 5.
What is the ON resistance flatness specification for the NX3L2T384GM,125 and why does it matter?
The NX3L2T384GM,125 exhibits 0.13 Ω ON resistance flatness at VCC = 2.7 V, defined as the difference between max and min RON across the full signal voltage range (GND to VCC). This tight flatness ensures minimal harmonic distortion and amplitude-dependent gain error-critical for high-fidelity audio routing and precision sensor signal conditioning where waveform symmetry must be preserved.
Can the NX3L2T384GM,125 operate reliably at 125 °C ambient temperature?
Yes-the NX3L2T384GM,125 is fully specified and tested from −40 °C to +125 °C ambient, including all key parameters: RON, leakage current, enable timing, and THD. Its XQFN8 package (SOT902-2) maintains thermal performance up to this limit, and total power dissipation remains within 250 mW derated linearly above 118 °C per the datasheet's limiting values table.
How does the NX3L2T384GM,125 achieve high noise immunity on its enable inputs?
The NX3L2T384GM,125 incorporates Schmitt-trigger action on both enable inputs (1E and 2E), providing >0.4 V hysteresis between VIH and VIL thresholds. This design rejects high-frequency noise and slow-rising/falling edges common in portable device PCBs-ensuring clean, glitch-free channel activation even with long traces or unshielded GPIO routing near RF sections.
NX3L2T384GM,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Packaging:
- Cut Tape (CT)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 750mOhm
- Channel-to-Channel Matching (ΔRon):
- 20mOhm
- Voltage - Supply, Single (V+):
- 1.4V ~ 4.3V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 40ns, 15ns
- -3db Bandwidth:
- 60MHz
- Charge Injection:
- 6pC
- Channel Capacitance (CS(off), CD(off)):
- 35pF
- Current - Leakage (IS(off)) (Max):
- 10nA
- Crosstalk:
- -90dB @ 100kHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-XQFNU (1.6x1.6)
NX3L2T384GM,125 FAQ
1.How can I place an order for NX3L2T384GM,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for NX3L2T384GM,125 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for NX3L2T384GM,125 reliable?
The price and inventory of NX3L2T384GM,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NX3L2T384GM,125 is usually 5 days.
3.What payment methods are accepted for NX3L2T384GM,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NX3L2T384GM,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NX3L2T384GM,125?
NX3L2T384GM,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NX3L2T384GM,125 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for NX3L2T384GM,125?
For technical support, including NX3L2T384GM,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NX3L2T384GM,125 requirements.
6.How does Aetrix verify that NX3L2T384GM,125 is sourced from the original manufacturer or authorized distributors?
All NX3L2T384GM,125 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that NX3L2T384GM,125 meets industry standards.
7.What is the process for return or replacement of NX3L2T384GM,125?
All NX3L2T384GM,125 units undergo pre-shipment inspection (PSI). If there is an issue with NX3L2T384GM,125, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The NX3L2T384GM,125 part is unused and in its original packaging.
Return procedure for NX3L2T384GM,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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