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NXP Semiconductors NX3L2G66GD,125
- Part No.:
- NX3L2G66GD,125
- Manufacturer:
- NXP Semiconductors
- Package:
- 8-XFDFN
- Datasheet:
-
NX3L2G66GD,125.pdf
- Description:
- IC SW SPST-NOX2 750MOHM 8XSON
- Quantity:
- Payment:
- Shipping:
Inventory:449
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Product details
Overview
NX3L2G66GD,125 from NXP Semiconductors is a dual low-ohmic SPST analog switch with two independent 1Y/1Z and 2Y/2Z bidirectional signal paths, active-HIGH enable inputs (1E/2E), 0.5 Ω typical ON resistance at 2.7 V and 4.3 V supply, Schmitt-triggered enables for noise immunity, and operation across −40 °C to +125 °C. It routes audio, sensor, or interface signals in portable consumer devices where low distortion and rail-to-rail analog swing are critical.
For engineers reviewing the NX3L2G66GD,125 datasheet, NX3L2G66GD,125 pinout, NX3L2G66GD,125 application, or NX3L2G66GD,125 equivalent, this page delivers verified package mapping (SOT996-2 XSON8), confirmed dynamic specs (14 ns enable time at 3.6 V), real-world leakage limits (±500 nA OFF-state at 125 °C), and validated alternatives for signal-path redesigns.
Technical Context
The NX3L2G66GD,125 implements a CMOS transmission-gate architecture with dual independent channels, each controlled by a dedicated enable input exhibiting Schmitt-trigger hysteresis (≥0.35VCC) to tolerate slow-rising control edges. Its bidirectional switching supports signal amplitudes up to VCC on both Y and Z terminals without level-shifting.
It features rail-to-rail analog signal handling, 350 mA continuous current per channel at 3.3 V, and integrated ESD protection exceeding 4 kV IEC61000-4-2 (contact) on switch ports - enabling direct connection to exposed interfaces in handheld electronics without external protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ON Resistance (typ) | 0.50 Ω at VCC = 2.7 V and 4.3 V - ensures minimal voltage drop and signal attenuation in audio and sensor paths |
| Supply Voltage Range | 1.4 V to 4.3 V - compatible with single-cell Li-ion, 1.8 V logic, and 3.3 V system rails without level shifters |
| Enable Time (max) | 26 ns at VCC = 2.3–2.7 V - supports high-speed multiplexing in USB 2.0 data lines and fast ADC channel selection |
| OFF-State Leakage (max) | ±500 nA at +125 °C - maintains signal integrity in battery-powered sleep modes with ultra-low standby current |
| Switch Bandwidth | 60 MHz (−3 dB) - preserves fidelity of audio, touch controller, and low-speed serial signals up to 20 MHz |
| ESD Protection | IEC61000-4-2 contact discharge ≥4000 V on switch ports - eliminates need for external TVS diodes in front-panel interfaces |
| Operating Temperature | −40 °C to +125 °C - qualified for extended-temperature industrial and automotive infotainment applications |
Pinout & Package
Package: SOT996-2 - plastic extremely thin small outline no-lead package (XSON8), 8-terminal, body dimensions 3.0 × 2.0 × 0.5 mm, thermal pad not present, pin 1 indicator in lower-left corner below marking code "D66".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1Y, 2Y | Independent analog I/O terminal (Channel 1 & 2) | Bidirectional signal path - connects to source or load without polarity constraint; supports rail-to-rail swing |
| 1Z, 2Z | Independent analog I/O terminal (Channel 1 & 2) | Paired with corresponding Y pin; forms SPST switch path when enabled; identical electrical behavior to Y |
| 1E, 2E | Active-HIGH enable input (Channel 1 & 2) | Schmitt-triggered - rejects noise on control lines; logic HIGH (≥0.7VCC) turns channel ON; LOW disables isolation |
| GND | Ground reference (0 V) | Common return for supply and signal paths; must be low-impedance to minimize crosstalk and THD |
| VCC | Positive supply voltage | Power rail for analog and digital circuitry; also defines maximum allowable analog signal amplitude (0 to VCC) |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent SPST switches | Enables simultaneous routing of two separate analog signals (e.g., stereo audio L/R or dual-sensor inputs) with isolated control |
| 0.13 Ω ON-resistance flatness | Minimizes harmonic distortion (<0.02% THD at 2.3 V+) across full signal swing - critical for high-fidelity audio paths |
| 350 mA continuous current rating | Supports driving low-impedance loads like 32 Ω headphones or capacitive touch sensors without derating |
| Direct TTL-level interface at 3.0 V | Accepts standard 3.3 V GPIO outputs without external level shifters - simplifies host MCU integration |
| Charge injection ≤3 pC (VCC ≤3.3 V) | Reduces glitch-induced offset in precision ADC sample-and-hold circuits and sensor front-ends |
Applications
| Audio Signal Routing | Portable Sensor Multiplexing |
|---|---|
Use Scenario: Switching between stereo headphone output and mono speaker output in smartphones and media players. IC Role / Device Role / Timing Role: Dual SPST analog switch providing bidirectional, rail-to-rail audio path selection under GPIO control. Use Value: 0.5 Ω ON resistance and <0.02% THD preserve audio fidelity; Schmitt-trigger enables robust operation with noisy baseband processor GPIOs. |
Use Scenario: Sharing a single ADC input among multiple analog sensors (e.g., temperature, ambient light, proximity) in wearables. IC Role / Device Role / Timing Role: Low-leakage analog multiplexer enabling sequential sampling without cross-channel interference. Use Value: ±500 nA max OFF-state leakage at 125 °C prevents sensor bias drift; 14 ns enable time allows rapid channel cycling. |
| USB Data Line Protection | Touch Controller Interface |
Use Scenario: Isolating USB 2.0 D+/D− lines during hot-plug events or system suspend in portable docking stations. IC Role / Device Role / Timing Role: High-bandwidth (60 MHz) analog switch inserted in-series with data lines to break DC path while preserving signal integrity. Use Value: 60 MHz −3 dB bandwidth supports full USB 2.0 signaling; 4 kV IEC61000-4-2 ESD rating protects downstream PHY from connector ESD. |
Use Scenario: Routing capacitive touch button signals from mechanical buttons to a touch controller IC in smart remotes and IoT panels. IC Role / Device Role / Timing Role: Low-capacitance (110 pF ON-state) switch enabling fast charge/discharge cycles required for self-capacitive sensing. Use Value: 110 pF ON-state capacitance minimizes RC delay; 3 pC charge injection prevents false touch detection during switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS5A23157DCUR | Single-supply 1.65–5.5 V; 0.9 Ω typical RON at 3.3 V; 8-pin VSSOP; no Schmitt trigger on enable | Lacks Schmitt-triggered enable - requires clean, fast-rising control signals; higher RON increases insertion loss in audio paths | Prefer when board space allows VSSOP and system GPIOs have sharp edges; avoid in noisy portable environments |
| ADG721BRMZ-REEL | 1.8–5.5 V supply; 0.6 Ω typical RON at 3 V; 10-pin MSOP; specified only to +85 °C | Not qualified for +125 °C operation; larger footprint; lacks IEC61000-4-2 ESD rating on switch pins | Select for industrial control boards operating ≤85 °C where MSOP is acceptable and external ESD protection is already present |
Compared with TS5A23157DCUR and ADG721BRMZ-REEL, the NX3L2G66GD,125 delivers superior noise immunity via Schmitt-trigger enables, extended temperature support to +125 °C, and certified 4 kV contact ESD on switch ports - making it the preferred choice for unbuffered, high-reliability portable signal routing.
Availability
NX3L2G66GD,125 is available at Aetrix Electronics and suitable for portable media players, smartphone peripheral interfaces, and industrial sensor hubs requiring stable component supply across extended temperature ranges and high-volume production cycles.
Supply support for NX3L2G66GD,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 electronics.
The NX3L2G66GD,125 belongs to NXP's NX3L low-voltage analog switch family, engineered for ultra-low ON resistance and rail-to-rail signal handling in space-constrained portable devices with aggressive power budgets.
FAQ
What is the maximum continuous current rating for NX3L2G66GD,125 per channel?
The NX3L2G66GD,125 supports 350 mA continuous current per channel at 3.3 V supply, as specified in Table 5 (Limiting Values) of the official NXP datasheet Rev. 8. This rating applies under steady-state conditions with ambient temperature ≤+125 °C and proper PCB thermal relief. Peak pulsed current reaches 500 mA for ≤1 ms at <10% duty cycle.
Does NX3L2G66GD,125 support rail-to-rail analog signal transmission?
Yes, the NX3L2G66GD,125 allows signals with amplitude up to VCC to be transmitted bidirectionally between nY and nZ terminals, as stated in the General Description section. With VCC = 3.3 V, it passes analog signals from 0 V to 3.3 V without clipping or level shifting - essential for audio, sensor, and interface applications.
What is the package type and pin count of NX3L2G66GD,125?
The NX3L2G66GD,125 uses the SOT996-2 package: an 8-terminal XSON8 (extremely thin small outline no-lead) with body dimensions 3.0 × 2.0 × 0.5 mm. Pin 1 is located in the lower-left corner below the "D66" marking code, and the pinout matches Figure 4 in the NXP datasheet Rev. 8.
Is NX3L2G66GD,125 qualified for automotive applications?
No - the NX3L2G66GD,125 is specified for −40 °C to +125 °C operation but is not AEC-Q200 qualified or automotive-grade rated. NXP explicitly states in Section 16.5 ("Non-automotive qualified products") that unless expressly designated as automotive qualified, the product is not suitable for automotive safety-critical systems.
How does the Schmitt-trigger action on the enable inputs benefit NX3L2G66GD,125 in portable designs?
The Schmitt-trigger action on 1E and 2E inputs provides hysteresis (≥0.35VCC), making NX3L2G66GD,125 tolerant to slow-rising or noisy control signals from baseband processors or low-power MCUs. This eliminates false switching in battery-operated devices where GPIO rise times degrade under load or EMI coupling occurs.
NX3L2G66GD,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- 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):
- 23ns, 8ns
- -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-XSON, SOT996-2 (2x3)
NX3L2G66GD,125 FAQ
1.How can I place an order for NX3L2G66GD,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for NX3L2G66GD,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 NX3L2G66GD,125 reliable?
The price and inventory of NX3L2G66GD,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NX3L2G66GD,125 is usually 5 days.
3.What payment methods are accepted for NX3L2G66GD,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NX3L2G66GD,125 transactions.
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4.How is shipping managed for NX3L2G66GD,125?
NX3L2G66GD,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NX3L2G66GD,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 NX3L2G66GD,125?
For technical support, including NX3L2G66GD,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NX3L2G66GD,125 requirements.
6.How does Aetrix verify that NX3L2G66GD,125 is sourced from the original manufacturer or authorized distributors?
All NX3L2G66GD,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 NX3L2G66GD,125 meets industry standards.
7.What is the process for return or replacement of NX3L2G66GD,125?
All NX3L2G66GD,125 units undergo pre-shipment inspection (PSI). If there is an issue with NX3L2G66GD,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 NX3L2G66GD,125 part is unused and in its original packaging.
Return procedure for NX3L2G66GD,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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