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Analog Devices Inc./Maxim Integrated MAX4684EBC-T
- Part No.:
- MAX4684EBC-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 10-WFBGA, CSPBGA
- Datasheet:
-
MAX4684EBC-T.pdf
- Description:
- IC SW SPDT-NO/NCX2 500MOHM 10CSP
- Quantity:
- Payment:
- Shipping:
Inventory:109,500
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Product details
Overview
MAX4684EBC-T from Maxim Integrated is a dual SPDT analog switch optimized for low-voltage, high-fidelity signal routing in portable audio and power management systems. It delivers 0.5Ω (max) NC on-resistance and 0.8Ω (max) NO on-resistance at +2.7V supply, 50ns turn-on time, and rail-to-rail analog signal handling from GND to V+, enabling precise speaker/headset switching and battery-powered relay replacement.
For engineers reviewing the MAX4684EBC-T datasheet, MAX4684EBC-T pinout, MAX4684EBC-T application, or MAX4684EBC-T equivalent, key selection criteria include its 12-bump UCSP package (2.0mm × 1.50mm), break-before-make timing (2ns), 1.8V logic compatibility, and channel-matched RON (≤0.06Ω).
Technical Context
The MAX4684EBC-T implements CMOS-based dual SPDT switching with independent IN1/IN2 digital control inputs driving two separate COM/NO/NC paths. Its BiCMOS process enables low RON flatness (≤0.15Ω over full signal range) and ultra-low leakage (≤1nA at +25°C), supporting bidirectional analog signal routing without polarity constraints.
Break-before-make operation ensures no signal shorting during state transitions, while 1.8V–5.5V single-supply operation and rail-to-rail signal capability allow direct integration into 1.8V/2.7V/3.3V systems without level-shifting. Input logic thresholds (VIH = 1.4V, VIL = 0.5V) are guaranteed across supply voltages up to +5.5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.8V to +5.5V - supports direct interface with Li-ion battery, 1.8V logic, and 3.3V system rails |
| NC On-Resistance (max) | 0.5Ω at +2.7V - enables low-loss connection for critical audio return paths (e.g., headset ground) |
| NO On-Resistance (max) | 0.8Ω at +2.7V - balances insertion loss and thermal performance for speaker output routing |
| RON Match (max) | 0.06Ω between channels - ensures matched gain/attenuation in stereo or differential signal paths |
| Turn-On Time (max) | 50ns at +3V - supports fast switching in dynamic audio path reconfiguration (e.g., call/audio mode toggle) |
| Off-Isolation | -64dB at 100kHz - suppresses crosstalk between active and inactive signal channels in multi-source systems |
| THD | 0.03% - preserves audio fidelity in line-level and headphone driver applications |
Pinout & Package
The MAX4684EBC-T uses a 12-bump, 0.5mm-pitch wafer-level chip-scale package (UCSP) occupying only 2.0mm × 1.50mm PCB area. The package has no leads; solder bumps form all electrical connections and require JEDEC-compliant IR/vapor-phase reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| NC1, NC2 | Analog Normally Closed Terminal | Default-closed path for priority signal routing (e.g., internal speaker path before headset insertion) |
| NO1, NO2 | Analog Normally Open Terminal | Activated path for secondary routing (e.g., headset output when jack detected) |
| COM1, COM2 | Analog Common Terminal | Bidirectional signal hub connecting to source (e.g., codec output) or load (e.g., speaker terminals) |
| IN1, IN2 | Digital Control Input | 1.8V-compatible logic input controlling respective SPDT switch; active-high logic sense |
| V+ | Positive Supply Voltage | Single supply input powering analog and digital sections; must be applied before analog signals |
| GND | Ground Reference | Common return for supply, analog signals, and logic inputs; connects to UCSP exposed die attach pad |
Key Features
| Feature | Design Value |
|---|---|
| Asymmetrical RON (NC/NO) | 0.5Ω/0.8Ω max enables optimized path loss allocation-lower RON on NC improves ground-return integrity in headset detection circuits |
| Rail-to-rail signal handling | Supports full V+ to GND analog swing without clipping-critical for unbuffered audio and battery-monitoring voltage routing |
| Break-before-make timing | 2ns guaranteed delay prevents momentary shorting between NC and NO paths-essential for avoiding pop/click in audio switching |
| Ultra-low leakage | 1nA max at +25°C minimizes DC offset and battery drain in always-on detection circuits (e.g., jack insertion sensing) |
| 1.8V logic compatibility | Accepts VIH ≥ 1.4V and VIL ≤ 0.5V across 1.8V–3.3V supplies-eliminates need for external level shifters in modern SoC interfaces |
Applications
| Speaker Headset Switching | Power Routing |
|---|---|
Use Scenario: Automatic switching between internal speaker and 3.5mm headset jack upon plug detection in smartphones and tablets. IC Role / Device Role / Timing Role: Dual SPDT analog switch routing audio output and ground return paths with break-before-make action to prevent audible transients. Use Value: 0.5Ω NC RON minimizes ground-path resistance for headset microphone bias, while 50ns tON enables sub-10ms mode transition compliant with USB Audio Class 3.0 latency requirements. | Use Scenario: Dynamic selection of primary vs. backup power sources (e.g., battery vs. USB) in portable medical monitors and handheld test equipment. IC Role / Device Role / Timing Role: Low-RON analog switch isolating or combining power rails under microcontroller control. Use Value: 0.8Ω NO RON limits voltage drop to <10mV at 12mA load current, preserving regulation accuracy; -64dB off-isolation prevents backfeed between sources. |
| Relay Replacement | Audio Signal Routing |
Use Scenario: Solid-state replacement of electromechanical relays in battery-operated IoT sensor nodes for GPIO-controlled signal path enable/disable. IC Role / Device Role / Timing Role: Low-leakage, low-RON switch providing galvanic isolation and zero-power hold state. Use Value: 1nA max leakage extends shelf life in energy-harvesting designs; 5.5V absolute max rating allows safe operation with 5V logic controllers even during transient overvoltage events. | Use Scenario: Multiplexing line-level audio inputs (e.g., mic, aux, Bluetooth codec) to a single ADC in smart speakers and voice assistants. IC Role / Device Role / Timing Role: High-fidelity analog multiplexer with matched channel characteristics for stereo or differential input pairs. Use Value: 0.06Ω RON match ensures ≤0.05dB gain error between left/right channels; 0.03% THD maintains SNR >100dB across 20Hz–20kHz bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4685EBC+T | 0.8Ω max RON on both NC and NO paths; identical UCSP-12 package and timing specs | Suitable where symmetrical path loss is required (e.g., balanced line drivers) | Select MAX4685EBC+T when NC/NO path symmetry outweighs the benefit of lower NC RON in headset ground routing |
| TMUX1574RSVR | 0.5Ω typical RON, 10-pin WQFN, 1.65V–5.5V supply, but no break-before-make guarantee | Used in general-purpose multiplexing where BbM is not mandatory | Choose TMUX1574RSVR only if BbM timing is not required and board space allows larger 3mm × 3mm package |
Compared with MAX4685EBC+T, the MAX4684EBC-T provides lower NC-path resistance for improved ground-return integrity in headset detection, while TMUX1574RSVR offers comparable RON but lacks guaranteed break-before-make-making MAX4684EBC-T the only option meeting strict audio pop/click suppression requirements in portable devices.
Availability
MAX4684EBC-T is available at Aetrix Electronics and suitable for speaker headset switching, power routing, and relay replacement applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX4684EBC-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 industrial, automotive, and consumer applications.
The MAX4684EBC-T belongs to Maxim's low-voltage analog switch product line, engineered specifically for high-fidelity, low-power signal routing in battery-constrained portable electronics.
FAQ
What is the maximum supply voltage rating for the MAX4684EBC-T?
The MAX4684EBC-T has an absolute maximum supply voltage (V+) of +6V. Operation is specified from +1.8V to +5.5V. Exceeding +6V may cause permanent damage. The device includes internal clamping diodes on analog pins, but sustained overvoltage beyond absolute ratings risks reliability degradation. Always apply V+ before analog signals to avoid latch-up.
Does the MAX4684EBC-T support rail-to-rail analog signal operation?
Yes, the MAX4684EBC-T supports rail-to-rail analog signal handling from GND to V+. Its BiCMOS architecture maintains low and flat on-resistance across the full signal range, enabling distortion-free transmission of signals spanning the entire supply rail-critical for unbuffered audio and precision voltage routing in portable systems.
What is the guaranteed break-before-make interval for the MAX4684EBC-T?
The MAX4684EBC-T guarantees a break-before-make (BbM) delay of 2ns maximum at +2.7V supply, measured under standard test conditions (RL = 50Ω, CL = 35pF). This ensures no overlap between NC and NO path conduction during switching, eliminating audible pops in audio applications and preventing short-circuits in power routing configurations.
Can the MAX4684EBC-T operate with a 1.8V logic supply while powered from a 3.3V analog rail?
Yes, the MAX4684EBC-T accepts 1.8V logic inputs (VIH ≥ 1.4V, VIL ≤ 0.5V) independently of V+, which can be set to 3.3V. This allows direct interfacing with 1.8V GPIOs from modern application processors without level shifters-reducing BOM count and layout complexity while maintaining full analog performance.
What package type and dimensions does the MAX4684EBC-T use?
The MAX4684EBC-T uses a 12-bump, 0.5mm-pitch wafer-level chip-scale package (UCSP) measuring 2.0mm × 1.50mm. It requires JEDEC-compliant IR or vapor-phase reflow per specification J-STD-020, with preheating and no hand/wave soldering. The package has no leads-electrical connections are made via solder bumps aligned to a 4×3 array.
MAX4684EBC-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SPDT - NO/NC
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 500mOhm
- Channel-to-Channel Matching (ΔRon):
- 60mOhm (Max)
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 50ns, 30ns
- -3db Bandwidth:
- -
- Charge Injection:
- 200pC
- Channel Capacitance (CS(off), CD(off)):
- 84pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -68dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-UCSP
MAX4684EBC-T FAQ
1.How can I place an order for MAX4684EBC-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4684EBC-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 MAX4684EBC-T reliable?
The price and inventory of MAX4684EBC-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4684EBC-T is usually 5 days.
3.What payment methods are accepted for MAX4684EBC-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4684EBC-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4684EBC-T?
MAX4684EBC-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4684EBC-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 MAX4684EBC-T?
For technical support, including MAX4684EBC-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4684EBC-T requirements.
6.How does Aetrix verify that MAX4684EBC-T is sourced from the original manufacturer or authorized distributors?
All MAX4684EBC-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 MAX4684EBC-T meets industry standards.
7.What is the process for return or replacement of MAX4684EBC-T?
All MAX4684EBC-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4684EBC-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 MAX4684EBC-T part is unused and in its original packaging.
Return procedure for MAX4684EBC-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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