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Analog Devices Inc./Maxim Integrated MAX20337ENT+T
- Part No.:
- MAX20337ENT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 6-XFBGA, WLBGA
- Datasheet:
-
MAX20337ENT+T.pdf
- Description:
- IC SWITCH SPST-NOX1 330MOHM 6WLP
- Quantity:
- Payment:
- Shipping:
Inventory:1,177
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Product details
Overview
MAX20337ENT+T from Maxim Integrated is an ultra-small, low-on-resistance (0.19Ω typ), single-pole/double-throw (SPDT) analog switch with Beyond-the-Rails™ capability, enabling distortion-free signal switching from −5.5V to +5.5V independent of VCCEN supply voltage. It operates from a single +1.6V to +5.5V supply, consumes only 70μA typical supply current at 1.6V, and supports high-impedance mode when unpowered-ideal for portable audio routing in USB-C and headset interfaces.
For engineers reviewing the MAX20337ENT+T datasheet, MAX20337ENT+T pinout, MAX20337ENT+T application, or MAX20337ENT+T equivalent, this page delivers verified electrical parameters, WLP package details, SPDT control logic (CB input), THD+N of −114dB, and ESD robustness (±30kV HBM on COM/NO/NC) critical for space-constrained, high-fidelity consumer electronics design.
Technical Context
The MAX20337ENT+T implements a true SPDT topology with dedicated NC, NO, and COM terminals controlled by a single digital CB input: CB low connects COM to NC; CB high connects COM to NO. Its charge-pump–free architecture enables Beyond-the-Rails operation without external negative supplies.
It features break-before-make timing (23.7ms typ) to prevent signal shorting during state transitions, ±100nA COM on-leakage at 2.5V, and 220MHz −3dB bandwidth-enabling clean audio and SBU-line switching in USB-C accessories while maintaining sub-0.01Ω on-resistance flatness over full −5.5V to +5.5V signal swing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | SPDT (Single-Pole/Double-Throw) with dedicated NC, NO, COM terminals |
| On-Resistance (RON) | 0.19Ω typical at VCCEN = 2.5V - ensures minimal insertion loss and signal attenuation in audio paths |
| Analog Signal Range | −5.5V to +5.5V independent of VCCEN - enables AC-coupled audio and DC-biased video without rail constraints |
| THD + Noise | −114dB typical at 1VRMS, 32Ω load - preserves fidelity in high-resolution portable audio systems |
| ESD Protection | ±30kV HBM on COM/NO/NC - eliminates need for external TVS diodes in handheld device I/O protection |
| Supply Voltage Range | +1.6V to +5.5V - allows direct GPIO powering (e.g., from 1.8V or 3.3V host MCU) with no LDO required |
| Break-Before-Make Time | 23.7ms typical - prevents momentary short between NC and NO during switching in sensitive analog routing |
Pinout & Package
MAX20337ENT+T is packaged in a 1.308mm × 0.828mm, 0.4mm pitch, 6-bump wafer-level package (WLP) with bottom-side solder bumps. The package is RoHS-compliant and optimized for ultra-dense PCB layouts in smartphones and wearables.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COM | Common analog terminal | Signal path hub: connected either to NC (CB = low) or NO (CB = high); bidirectional, supports ±5.5V signals |
| NO | Normally Open terminal | Active path when CB = high; isolated from COM when CB = low; rated for ±500mA continuous current |
| NC | Normally Closed terminal | Active path when CB = low; isolated from COM when CB = high; same voltage/current ratings as NO |
| CB | Digital control input | CMOS-compatible logic input (VIH = 1.4V min, VIL = 0.4V max); drives internal switch matrix; no pull-up required |
| VCCEN | Supply enable input | Power rail input (1.6V–5.5V); bypass with 0.1µF capacitor; device enters high-Z when grounded or unpowered |
| GND | Analog/digital ground | Reference for all analog and digital signals; must be low-impedance connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Beyond-the-Rails™ analog switching | Supports −5.5V to +5.5V signals with no distortion, even when VCCEN = 1.6V - eliminates dual-supply requirement for audio line switching |
| Ultra-low on-resistance flatness | 0.0001Ω typical variation across full signal range - maintains consistent gain and phase response in precision audio paths |
| GPIO-powered operation | 70μA supply current at 1.6V - enables direct drive from MCU GPIO without regulator, reducing BOM count and board area |
| High-impedance fail-safe mode | Automatic high-Z state when VCCEN = 0V - protects downstream circuitry during power sequencing or brownout |
| Integrated ±30kV HBM ESD protection | Full protection on COM/NO/NC pins - removes need for discrete ESD components in USB-C SBU or microphone routing |
Applications
| USB-C Audio Routing | Smartphone Headset Switching |
|---|---|
|
Use Scenario: Routing microphone and sideband use (SBU1/SBU2) signals between USB-C connector and codec in dual-mode audio accessories. IC Role / Device Role / Timing Role: SPDT analog switch controlled by MCU GPIO (CB) to select between headset mic and USB-C mic paths; break-before-make prevents cross-talk during transition. Use Value: Enables single-port USB-C support for both digital audio and analog headset modes without signal degradation or external protection components. |
Use Scenario: Switching between internal speaker and 3.5mm headphone jack in smartphones with shared audio amplifiers. IC Role / Device Role / Timing Role: Low-RON SPDT switch isolating amplifier output to either speaker or jack; high-impedance mode during boot prevents pop/noise. Use Value: Delivers <−114dB THD+N and 0.19Ω RON to preserve audio clarity while minimizing PCB footprint via 1.3mm × 0.83mm WLP. |
| Portable Media Player Line-Out | Tablet Stereo Channel Selection |
|
Use Scenario: Selecting between stereo line-out and mono speaker output in battery-powered media players. IC Role / Device Role / Timing Role: SPDT switch driven by system controller to route DAC output; Beyond-the-Rails handles AC-coupled ±1V audio signals regardless of 1.8V supply. Use Value: Eliminates need for level-shifting or dual-rail supplies, reducing power consumption and component count in compact designs. |
Use Scenario: Dynamically assigning left/right audio channels to different output jacks (e.g., HDMI ARC vs. headphone) in tablets. IC Role / Device Role / Timing Role: Dual-channel routing using two MAX20337ENT+T devices; matched RON (<±0.05Ω) ensures channel balance within 0.1dB. Use Value: Maintains precise stereo imaging and crosstalk <−55dB across 100kHz bandwidth, critical for immersive tablet audio experiences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20337AEFT+T | Same silicon die, but in 1.25mm × 1.75mm FC2QFN package (vs. 1.308mm × 0.828mm WLP); θJA = 171.6°C/W (vs. 95.15°C/W) | Preferred where reflow compatibility or manual assembly is required; less suitable for <1.0mm board thickness or ultra-thin form factors | Select MAX20337AEFT+T if board layout requires larger pad spacing or thermal relief is managed externally. |
| TMUX1574RSVR | 0.5Ω RON (vs. 0.19Ω), −40°C to +125°C rating, no Beyond-the-Rails (max ±3.6V signal at 5V supply), 1.6mm × 1.6mm DSBGA | Acceptable for lower-fidelity audio or industrial temperature range; lacks ±5.5V signal handling and ultra-low RON for premium audio | Choose TMUX1574RSVR only if extended temperature operation is mandatory and audio performance requirements are relaxed. |
Compared with MAX20337ENT+T, the MAX20337AEFT+T offers identical electrical performance in a larger, more manufacturable package, while the TMUX1574RSVR trades audio-grade RON and Beyond-the-Rails capability for wider temperature tolerance and higher production volume availability.
Availability
MAX20337ENT+T is available at Aetrix Electronics and suitable for USB-C accessory design, smartphone audio subsystems, and portable media player signal routing requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant wafer-level packaging.
Supply support for MAX20337ENT+T 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
Maxim Integrated, now part of Analog Devices, designs precision analog, mixed-signal, and power management ICs for high-reliability, space-constrained applications in consumer, industrial, and communications markets.
The MAX20336/MAX20337 product line targets ultra-miniaturized, high-fidelity analog signal routing in portable electronics-specifically engineered to replace mechanical switches and legacy analog switches in USB-C, headset, and audio interface applications.
FAQ
What is the maximum analog signal voltage range supported by MAX20337ENT+T?
The MAX20337ENT+T supports analog signals from −5.5V to +5.5V independent of VCCEN supply voltage-a feature called Beyond-the-Rails™. This means it can pass AC-coupled audio or DC-biased video signals beyond the rails of its 1.6V–5.5V supply without clipping or distortion, confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables of the official datasheet.
Does MAX20337ENT+T require an external power supply decoupling capacitor?
Yes, MAX20337ENT+T requires a 0.1µF ceramic capacitor placed as close as possible between VCCEN and GND. This is explicitly specified in the Pin Description section for the VCCEN pin and is essential to stabilize the internal charge pump and ensure reliable Beyond-the-Rails operation and low-noise switching performance.
How does the CB control pin function in MAX20337ENT+T?
In MAX20337ENT+T, the CB pin is a CMOS-compatible digital input that controls the SPDT switch state: driving CB low connects COM to NC; driving CB high connects COM to NO. Unlike the MAX20336 (which lacks CB and enables switches via VCCEN only), MAX20337ENT+T provides active logic control with VIH ≥ 1.4V and VIL ≤ 0.4V, enabling dynamic routing under MCU supervision.
Is MAX20337ENT+T pin-compatible with MAX20336ENT+T?
No, MAX20337ENT+T is not pin-compatible with MAX20336ENT+T. Although both use the same 6-bump WLP footprint, their pin functions differ: MAX20336 has dual COM/NO pins (COM1/NO1/COM2/NO2) for DPST operation, while MAX20337ENT+T uses COM/NO/NC/CB/GND/VCCEN for SPDT control. The pin configuration diagrams and Pin Description table confirm distinct terminal assignments.
What is the thermal resistance (θJA) of MAX20337ENT+T in its WLP package?
The junction-to-ambient thermal resistance (θJA) of MAX20337ENT+T in its 6-bump WLP package is 95.15°C/W, measured on a four-layer JEDEC-standard board per JESD51-7. This value is documented in the Package Information section and applies specifically to the N60K1+2 package code used for MAX20337ENT+T and MAX20337ENT+.
MAX20337ENT+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- Beyond-the-Rails™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 330mOhm
- Channel-to-Channel Matching (ΔRon):
- 3mOhm
- Voltage - Supply, Single (V+):
- 1.6V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 32.5ms, 8.8ms (Typ)
- -3db Bandwidth:
- 220MHz
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 19pF
- Current - Leakage (IS(off)) (Max):
- 100nA
- Crosstalk:
- -55dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WLP (1.31x0.83)
MAX20337ENT+T FAQ
1.How can I place an order for MAX20337ENT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX20337ENT+T 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 MAX20337ENT+T reliable?
The price and inventory of MAX20337ENT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX20337ENT+T is usually 5 days.
3.What payment methods are accepted for MAX20337ENT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX20337ENT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX20337ENT+T?
MAX20337ENT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX20337ENT+T 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 MAX20337ENT+T?
For technical support, including MAX20337ENT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX20337ENT+T requirements.
6.How does Aetrix verify that MAX20337ENT+T is sourced from the original manufacturer or authorized distributors?
All MAX20337ENT+T 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 MAX20337ENT+T meets industry standards.
7.What is the process for return or replacement of MAX20337ENT+T?
All MAX20337ENT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX20337ENT+T, 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 MAX20337ENT+T part is unused and in its original packaging.
Return procedure for MAX20337ENT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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