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Analog Devices Inc./Maxim Integrated MAX4687EBT
- Part No.:
- MAX4687EBT
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 6-WFBGA, CSPBGA
- Datasheet:
-
MAX4687EBT.pdf
- Description:
- IC SWITCH SPST-NCX1 2.5OHM 6UCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,450
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Product details
Overview
MAX4687EBT from Maxim Integrated is a single-pole/single-throw (SPST) analog switch with normally closed (NC) configuration, operating from +1.8V to +5.5V supply. It delivers 2.5Ω max on-resistance at +3V, 0.4Ω max RON matching, and 12ns max turn-off time, enabling low-loss signal routing in space-constrained portable audio and power management circuits.
For engineers reviewing the MAX4687EBT datasheet, MAX4687EBT pinout, MAX4687EBT application, or MAX4687EBT equivalent, key selection criteria include NC default state, UCSP-6 package footprint (1.50mm × 1.02mm), rail-to-rail analog signal handling (0V to V+), and 1.8V logic compatibility for battery-powered system integration.
Technical Context
The MAX4687EBT implements a CMOS transmission-gate architecture optimized for low-voltage operation, with guaranteed break-before-make timing only in the MAX4688 variant-this device lacks B-B-M functionality. Its digital control input accepts 1.8V–5.5V logic levels independent of V+, supporting mixed-supply interface without level shifters.
Analog performance is characterized by 1Ω max RON flatness over full signal range and −90dB off-isolation at 100kHz, ensuring minimal crosstalk and signal degradation in audio/video routing and precision sensor multiplexing applications where channel-to-channel consistency is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RON (max) | 2.5Ω at +3V supply - enables <10mV drop at 10mA signal current, preserving signal integrity in low-voltage audio paths |
| RON matching | 0.4Ω max - ensures consistent gain/attenuation across multiple channels in stereo or multi-signal systems |
| tOFF (max) | 12ns - supports high-speed switching in data acquisition and communications signal routing |
| Supply range | +1.8V to +5.5V - compatible with Li-ion, coin-cell, and 3.3V/5V system rails without external regulators |
| Logic compatibility | 1.8V input threshold - interfaces directly with modern low-voltage microcontrollers and FPGAs |
| Off-isolation | −90dB at 100kHz - suppresses coupling between inactive channels in multi-source audio/video switching |
| Leakage (max) | 1nA at +85°C - maintains accuracy in high-impedance sensor front-ends and battery-monitoring circuits |
Pinout & Package
The MAX4687EBT uses a 6-bump UCSP-6 (chip-scale) package measuring 1.50mm × 1.02mm with 0.5mm bump pitch. The package is designed for direct die attachment to PCBs using standard reflow profiles compliant with JEDEC J-STD-020A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply voltage input | Must be applied before analog signals to prevent latch-up; supports 1.8V–5.5V operation |
| IN | Digital control input | Active-high logic input; drives internal gate to close NC path when high, open when low |
| GND | Ground reference | Return path for supply and analog signals; must be low-impedance for leakage and noise control |
| NC | Normally closed analog terminal | Connected to COM when IN = low; breaks connection when IN = high - default-closed safety path |
| COM | Common analog terminal | Bidirectional signal port; connects to NC (default) or floats when IN = high |
| I.C. | Internally connected bump | No external connection required; internal tie to substrate or guard ring for ESD and noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| UCSP-6 package | 1.50mm × 1.02mm footprint - reduces board area by >70% vs. SOT-23, enabling ultra-compact portable designs |
| Rail-to-rail signal handling | 0V to V+ analog range - passes full-supply-range signals without clipping in audio and sensor interfaces |
| Low charge injection (40pC) | Minimizes voltage glitch on sampled nodes - critical for precision ADC front-ends and sample-hold circuits |
| −95dB crosstalk (MAX4688 only) | Not applicable to MAX4687EBT - this parameter is exclusive to the SPDT MAX4688 variant per datasheet specification table |
| 1.8V logic compatible inputs | Accepts 1.4V VIH and 0.5V VIL across temperature - eliminates need for external level translators in 1.8V/3.3V mixed-signal systems |
Applications
| Audio Signal Routing | Power Path Control |
|---|---|
Use Scenario: Switching between microphone and headset audio paths in smartphones and wearables. IC Role / Device Role / Timing Role: Normally closed (NC) analog switch providing default audio path continuity during boot or fault conditions. Use Value: Ensures fail-safe audio connectivity without processor intervention; 2.5Ω RON preserves SNR in 16-bit audio chains. | Use Scenario: Enabling/disabling backup battery supply to real-time clock (RTC) circuitry during main power loss. IC Role / Device Role / Timing Role: Low-leakage NC switch isolating RTC from main rail while maintaining backup path until switchover. Use Value: 1nA max off-leakage at +85°C extends backup battery life beyond 5 years in industrial logging devices. |
| Relay Replacement | Communications Circuit Protection |
Use Scenario: Replacing electromechanical relays in portable test equipment for signal path selection. IC Role / Device Role / Timing Role: Solid-state SPST NC switch delivering infinite cycle life and silent operation in handheld DMMs. Use Value: 30ns tON/12ns tOFF enables automated test sequencing at >10kHz rates, outperforming mechanical relays by 6 orders of magnitude. | Use Scenario: Isolating RF transceiver I/O pins from baseband processor during sleep mode to reduce standby current. IC Role / Device Role / Timing Role: NC switch disconnecting sensitive RF inputs when baseband is powered down. Use Value: −90dB off-isolation prevents LO leakage and spurious emissions, meeting FCC Part 15 radiated emission limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4686EBT-T | SPST NO configuration (open at IN = low); identical RON, timing, and package | Used where default-open signal path is required (e.g., enable-only power gating) | Select MAX4686EBT-T when fail-safe open state is needed; MAX4687EBT provides fail-safe closed path |
| TMUX1574DSGR | SPST NC, 3.5Ω RON at 3V, 16-pin WQFN, 1.8V–5.5V supply, no UCSP option | Larger footprint and higher RON limit use in ultra-low-distortion audio; suitable for non-space-constrained industrial controls | Choose TMUX1574DSGR only if UCSP-6 assembly capability is unavailable; otherwise MAX4687EBT offers superior size/performance |
Compared with MAX4686EBT-T (NO variant) and TMUX1574DSGR (larger-package alternative), the MAX4687EBT uniquely combines NC default behavior, 1.50mm × 1.02mm UCSP-6 footprint, and sub-3Ω RON-making it optimal for battery-powered devices requiring automatic signal continuity on power-up or fault.
Availability
MAX4687EBT is available at Aetrix Electronics and suitable for MP3 players, cellular phones, and battery-operated equipment requiring stable component supply across automotive, industrial, and consumer production cycles.
Supply support for MAX4687EBT 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 demanding industrial, medical, and communications applications.
The MAX4686/MAX4687/MAX4688 family targets ultra-compact, low-voltage signal routing-specifically engineered for portable electronics where board space, power efficiency, and rail-to-rail analog fidelity are critical constraints.
FAQ
What is the default state of the MAX4687EBT analog switch?
The MAX4687EBT is a normally closed (NC) SPST analog switch: when the IN control input is low (≤0.5V), the NC terminal is connected to the COM terminal. When IN is high (≥1.4V), the connection opens. This default-closed behavior ensures signal continuity during power-up or controller reset, making MAX4687EBT ideal for fail-safe audio routing and backup power path applications.
Does the MAX4687EBT support rail-to-rail analog signal operation?
Yes, the MAX4687EBT supports rail-to-rail analog signal handling from 0V to V+ across its entire specified supply range (+1.8V to +5.5V). This allows full-supply-range signals-such as audio waveforms or sensor outputs-to pass without clipping or distortion. The datasheet confirms ≤1Ω RON flatness over the full 0V–V+ range at +3V supply, ensuring consistent performance regardless of signal DC offset.
What is the maximum allowable supply voltage for the MAX4687EBT?
The absolute maximum supply voltage (V+) for the MAX4687EBT is +6V, but the recommended operating range is +1.8V to +5.5V. Exceeding +6V may cause permanent damage. At +5.5V, RON drops to ~1.5Ω (typical), improving conduction efficiency-but designers must ensure analog signals on NO/NC/COM do not exceed V+ + 0.3V to avoid diode clamping and excessive leakage.
Can the MAX4687EBT be used with 1.8V logic controllers?
Yes, the MAX4687EBT features 1.8V logic-compatible inputs: VIH is guaranteed ≥1.4V and VIL ≤0.5V over temperature, allowing direct interface with 1.8V GPIOs without level shifters. Its IN pin tolerates voltages up to +5.5V regardless of V+, enabling robust interfacing with mixed-voltage systems-e.g., a 1.8V FPGA controlling a +3.3V-powered MAX4687EBT while driving IN to 3.3V.
Is break-before-make timing supported on the MAX4687EBT?
No, break-before-make (B-B-M) timing is not supported on the MAX4687EBT. B-B-M is a feature exclusive to the MAX4688 (SPDT) variant, as explicitly stated in the datasheet's Features section and Electrical Characteristics table. The MAX4687EBT is an SPST NC switch with no alternate path; therefore, B-B-M is irrelevant to its operation. For applications requiring guaranteed channel isolation during switching, the MAX4688EBT-T must be selected instead.
MAX4687EBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 2.5Ohm
- Channel-to-Channel Matching (ΔRon):
- 300mOhm
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 30ns, 12ns
- -3db Bandwidth:
- 200MHz
- Charge Injection:
- 40pC
- Channel Capacitance (CS(off), CD(off)):
- 12pF, 12pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -95dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-UCSP (1.57x1.05)
MAX4687EBT FAQ
1.How can I place an order for MAX4687EBT through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4687EBT 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 MAX4687EBT reliable?
The price and inventory of MAX4687EBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4687EBT is usually 5 days.
3.What payment methods are accepted for MAX4687EBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4687EBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4687EBT?
MAX4687EBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4687EBT 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 MAX4687EBT?
For technical support, including MAX4687EBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4687EBT requirements.
6.How does Aetrix verify that MAX4687EBT is sourced from the original manufacturer or authorized distributors?
All MAX4687EBT 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 MAX4687EBT meets industry standards.
7.What is the process for return or replacement of MAX4687EBT?
All MAX4687EBT units undergo pre-shipment inspection (PSI). If there is an issue with MAX4687EBT, 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 MAX4687EBT part is unused and in its original packaging.
Return procedure for MAX4687EBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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