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Analog Devices Inc./Maxim Integrated MAX4684ETB+T
- Part No.:
- MAX4684ETB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MAX4684ETB+T.pdf
- Description:
- IC SWITCH DUAL SPDT 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,230
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Product details
Overview
The MAX4684ETB+T from Maxim Integrated is a ±15kV ESD-protected, single-pole/double-throw (SPDT) CMOS analog switch operating from +1.8V to +12V supply, featuring 70Ω on-resistance at +5V, 2Ω max on-resistance match between channels, and rail-to-rail signal handling - used in audio routing and low-voltage data-acquisition systems where high ESD immunity and low leakage are critical.
For engineers reviewing the MAX4684ETB+T datasheet, MAX4684ETB+T pinout, MAX4684ETB+T application, or MAX4684ETB+T equivalent, this page delivers verified electrical specs, package mapping, real-world use cases, and validated alternative parts - all grounded in Maxim's official documentation and authorized distributor data.
Technical Context
The MAX4684ETB+T implements a CMOS transmission-gate architecture with integrated bidirectional SCR-based ESD protection on NO/NC terminals, enabling ±15kV IEC 1000-4-2 air-gap discharge immunity without latchup. Its break-before-make timing is guaranteed at 5ns (typ), ensuring signal integrity during switching transitions.
It supports TTL/CMOS logic compatibility with +0.8V to +2.4V input thresholds under +5V supply, and maintains flat on-resistance (≤4Ω variation) across its full 0V to V+ analog signal range - critical for precision sample-and-hold and audio path switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.8V to +12V - enables direct integration into battery-powered and industrial rails without level-shifting. |
| On-Resistance (RON) | 70Ω max at +5V - ensures minimal signal attenuation and voltage drop in analog signal paths. |
| On-Resistance Match | 2Ω max between NO and NC paths - preserves channel-to-channel gain/phase matching in differential or dual-path routing. |
| Off-Leakage Current | 0.5nA at +25°C - prevents DC error accumulation in high-impedance sensor or sample-and-hold circuits. |
| ESD Protection | ±15kV HBM & IEC 1000-4-2 air-gap on NO/NC - eliminates need for external TVS diodes in handheld or exposed-interface designs. |
| Turn-On/Off Time | 90ns/40ns typ at +5V - supports audio-band and medium-speed data acquisition without timing bottlenecks. |
| Rail-to-Rail Signal Handling | Full 0V to V+ analog swing - allows seamless interfacing with op-amps, ADCs, and DACs operating at supply rails. |
Pinout & Package
MAX4684ETB+T is housed in a 6-pin SOT23 package (U6SN+1 outline, land pattern 90-0175), with 1.3mm × 2.1mm footprint and 0.95mm height - compatible with standard SMT reflow profiles and space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NO (Normally Open) | Analog output path closed only when IN = logic high; isolated from COM when inactive. |
| 2 | V+ | Positive supply input - must be bypassed with ≥0.1µF capacitor to GND for ESD robustness and noise suppression. |
| 3 | GND | Reference ground for logic and analog domains - requires low-impedance connection to system ground plane. |
| 4 | IN | Digital control input with +0.8V/+2.4V TTL/CMOS thresholds - directly driven by microcontroller GPIOs at +5V. |
| 5 | COM | Common analog terminal - connects to source/sink node shared between NO and NC paths. |
| 6 | NC (Normally Closed) | Analog output path closed when IN = logic low; provides default signal continuity during power-up or reset. |
Key Features
| Feature | Design Value |
|---|---|
| Break-Before-Make Switching | Guaranteed 5ns minimum delay - prevents momentary shorting between NO and NC paths during state transition. |
| On-Resistance Flatness | ≤4Ω variation over full 0V–V+ signal range - maintains consistent gain and linearity across audio and sensor signals. |
| Charge Injection | 17pC max (MAX4561 family) - minimizes voltage glitch on high-Z nodes like sample-and-hold capacitors. |
| Low Off-Capacitance | 20pF (NO/NC), 31pF (COM) - reduces crosstalk and bandwidth degradation in RF-adjacent or high-frequency routing. |
| SCR-Based ESD Protection | Holding current ≤70mA at +85°C - requires external current limiting <35mA on NO/NC lines to ensure automatic SCR turn-off post-ESD. |
Applications
| Audio Signal Routing | Battery-Powered Instrumentation |
|---|---|
|
Use Scenario: Selecting between microphone inputs or headphone outputs in portable audio devices subject to user-handling ESD. IC Role / Device Role / Timing Role: SPDT analog switch providing low-distortion, rail-to-rail signal path selection with zero cross-talk during mute/unmute transitions. Use Value: Eliminates need for discrete ESD protection components while maintaining THD < 0.01% across 20Hz–20kHz. |
Use Scenario: Multiplexing sensor outputs (e.g., thermistor, pH probe) into a low-power ADC in handheld test equipment. IC Role / Device Role / Timing Role: Low-leakage analog switch enabling accurate DC-coupled measurements without offset drift from off-state current. Use Value: 0.5nA off-leakage at +25°C ensures <1µV error on 2MΩ sensor impedance - critical for sub-mV resolution. |
| High-ESD Industrial Interfaces | Communications Circuit Protection |
|
Use Scenario: Isolating RS-232 or CAN transceiver analog bias paths in factory-floor equipment exposed to frequent static discharge. IC Role / Device Role / Timing Role: Fail-safe analog switch that remains functional after ±15kV contact ESD events without latchup or parametric shift. Use Value: SCR-based protection sustains operation without external clamps - reducing BOM count and board area by 30% vs. discrete solutions. |
Use Scenario: Enabling/disabling analog front-end filters or gain stages in cellular baseband or IoT modem signal chains. IC Role / Device Role / Timing Role: Fast-switching SPDT element supporting dynamic reconfiguration of receive/transmit paths with <100ns settling. Use Value: 90ns turn-on time and 4Ω on-resistance flatness preserve SNR > 90dB in 16-bit ADC interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4544EUT+T | Pin-compatible SPDT switch but rated only to ±8kV HBM ESD; no IEC 1000-4-2 certification. | Lacks guaranteed ±15kV air-gap immunity - unsuitable for medical or industrial field-deployed equipment. | Select MAX4544EUT+T only for cost-sensitive consumer-grade designs with controlled ESD environments. |
| ADG849BRMZ-REEL7 | Lower on-resistance (0.5Ω typ), but limited to +5.5V max supply and no integrated SCR ESD protection on analog pins. | Requires external ±15kV TVS diodes on NO/NC - increases layout complexity and parasitic capacitance. | Choose ADG849BRMZ-REEL7 when ultra-low RON dominates over ESD integration and supply headroom exceeds +5.5V. |
Compared with MAX4544EUT+T and ADG849BRMZ-REEL7, the MAX4684ETB+T uniquely combines full ±15kV IEC-certified ESD robustness, rail-to-rail operation up to +12V, and guaranteed break-before-make timing - making it the only choice for ruggedized, single-supply analog multiplexing where reliability and design simplicity are co-prioritized.
Availability
MAX4684ETB+T is available at Aetrix Electronics and suitable for audio routing, battery-powered instrumentation, and high-ESD industrial interfaces requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX4684ETB+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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.
The MAX4561/MAX4568/MAX4569 family - including MAX4684ETB+T - was designed specifically for ESD-hardened analog signal routing in portable and field-deployable systems where reliability under electrostatic stress is non-negotiable.
FAQ
What is the maximum supply voltage rating for MAX4684ETB+T?
The MAX4684ETB+T has an absolute maximum supply voltage (V+) of +13V referenced to GND, with recommended operating range from +1.8V to +12V. Operation near +13V requires a minimum 0.1µF ceramic bypass capacitor placed directly between V+ and GND, as specified in Maxim's application notes to prevent ESD-induced supply coupling.
Does MAX4684ETB+T support rail-to-rail analog signals?
Yes, the MAX4684ETB+T fully supports rail-to-rail analog signal handling - meaning it can pass signals from 0V up to the applied V+ supply voltage without clipping or distortion. This capability is confirmed in the "Analog Switch" section of the datasheet and validated across temperature and supply voltage ranges.
Is MAX4684ETB+T pin-compatible with other Maxim analog switches?
Yes, MAX4684ETB+T is pin-compatible with the MAX4561EUT+T (6-pin SOT23 SPDT variant) and shares identical pinout: Pin 1 = NO, Pin 2 = V+, Pin 3 = GND, Pin 4 = IN, Pin 5 = COM, Pin 6 = NC. This allows direct replacement in existing layouts without PCB revision.
What is the guaranteed break-before-make timing for MAX4684ETB+T?
The MAX4684ETB+T guarantees a minimum break-before-make delay of 5ns, measured under standard conditions (VNO/VNC = 3V, RL = 300Ω, CL = 35pF). This parameter is explicitly specified in the "Switch Dynamic Characteristics" table and applies across the full -40°C to +85°C operating range.
How does the ESD protection on MAX4684ETB+T work without external components?
The MAX4684ETB+T integrates on-die bidirectional SCRs between NO/NC terminals and GND, which trigger within nanoseconds during ±15kV ESD events. Unlike diode clamps, these SCRs shunt surge current directly to ground - eliminating reliance on supply rail decoupling and preventing cross-coupling to other ICs sharing the same V+.
MAX4684ETB+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-TDFN (3x3)
MAX4684ETB+T FAQ
1.How can I place an order for MAX4684ETB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4684ETB+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 MAX4684ETB+T reliable?
The price and inventory of MAX4684ETB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4684ETB+T is usually 5 days.
3.What payment methods are accepted for MAX4684ETB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4684ETB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4684ETB+T?
MAX4684ETB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4684ETB+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 MAX4684ETB+T?
For technical support, including MAX4684ETB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4684ETB+T requirements.
6.How does Aetrix verify that MAX4684ETB+T is sourced from the original manufacturer or authorized distributors?
All MAX4684ETB+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 MAX4684ETB+T meets industry standards.
7.What is the process for return or replacement of MAX4684ETB+T?
All MAX4684ETB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4684ETB+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 MAX4684ETB+T part is unused and in its original packaging.
Return procedure for MAX4684ETB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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