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Analog Devices Inc./Maxim Integrated MAX4630EUD
- Part No.:
- MAX4630EUD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4630EUD.pdf
- Description:
- IC SW SPST-NCX4 70OHM 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,489
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Product details
Overview
The MAX4630EUD from Maxim Integrated is a low-voltage, quad, single-pole/single-throw (SPST), normally closed (NC) CMOS analog switch with ±15kV ESD protection on NO/NC pins, 70Ω max on-resistance at +5V, 0.5nA off-leakage at +25°C, and rail-to-rail signal handling-designed for audio routing and battery-powered test equipment where mechanical relay replacement is required.
For engineers reviewing the MAX4630EUD datasheet, MAX4630EUD pinout, MAX4630EUD application, or MAX4630EUD equivalent, key selection criteria include guaranteed 70Ω on-resistance at 5V, ±15kV HBM ESD rating, NC-only switching topology, 14-pin TSSOP package compatibility with 74HC4066 footprints, and operation from +2V to +12V single supply.
Technical Context
The MAX4630EUD implements four independent NC SPST switches using CMOS architecture with integrated bidirectional SCRs on NO/NC terminals for ±15kV ESD protection per IEC 1000-4-2 air-gap and contact discharge standards. Each switch features TTL/CMOS-compatible digital control inputs and supports rail-to-rail analog signal ranges.
It guarantees on-resistance matching of 0.5Ω (typ) and flatness of 2Ω (typ) at +5V across its full signal range, with turn-on/turn-off times of 90ns/50ns (typ) at +5V and 300Ω load. The device operates over –40°C to +85°C and draws only 1µA supply current at +25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2V to +12V single supply-enables direct integration into 3.3V and 5V systems without level shifting. |
| On-Resistance (max) | 70Ω at +5V-ensures minimal signal attenuation in precision analog paths. |
| Off-Leakage Current | ±0.5nA at +25°C-preserves signal integrity in high-impedance sample-and-hold circuits. |
| ESD Protection | ±15kV HBM, ±15kV IEC 1000-4-2 air-gap, ±8kV contact-eliminates need for external TVS diodes on analog I/O lines. |
| -3dB Bandwidth | >300MHz-supports video and high-speed data routing without distortion. |
| Total Harmonic Distortion | 0.015% at 20Hz–20kHz-meets fidelity requirements for professional audio signal switching. |
| Switch Configuration | Quad NC (normally closed)-provides fail-safe closed-path behavior when control logic is inactive or unpowered. |
Pinout & Package
MAX4630EUD is housed in a 14-pin Thin Shrink Small Outline Package (TSSOP) with 0.65mm pitch, 5.0mm × 4.4mm body size, and exposed pad for thermal enhancement. Pin 1 is V+, pin 7 is GND, and all analog terminals (NC1–NC4, COM1–COM4) are ESD-hardened.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V+ | Positive supply input-must be powered before logic inputs to prevent latchup. |
| 2 | IN1 | Digital control input for NC1 switch-TTL/CMOS compatible (VIH = 2.4V min at +5V). |
| 3 | IN2 | Digital control input for NC2 switch-drives internal gate to open NC path when HIGH. |
| 4 | IN3 | Digital control input for NC3 switch-synchronized switching possible across all four channels. |
| 5 | IN4 | Digital control input for NC4 switch-no internal inter-channel timing skew. |
| 6 | GND | Analog and digital ground reference-shared return for supply and signal paths. |
| 7 | NC1 | Normally closed analog terminal-conducts to COM1 when IN1 = LOW; isolated when IN1 = HIGH. |
| 8 | NC2 | Normally closed analog terminal-identical electrical specs to NC1; independent control. |
| 9 | NC3 | Normally closed analog terminal-guaranteed RON match ≤0.5Ω (typ) vs. other channels at +5V. |
| 10 | NC4 | Normally closed analog terminal-ESD-protected to ±15kV without latchup or degradation. |
| 11 | COM1 | Common analog terminal for NC1-rail-to-rail voltage range (0V to V+); handles ±10mA continuous. |
| 12 | COM2 | Common analog terminal for NC2-matched on-resistance flatness ensures consistent gain across channels. |
| 13 | COM3 | Common analog terminal for NC3-low charge injection (5pC typ) minimizes glitch in sampling circuits. |
| 14 | COM4 | Common analog terminal for NC4-off-capacitance 12pF (typ) enables high-frequency isolation. |
Key Features
| Feature | Design Value |
|---|---|
| Quad NC topology | Ensures default-closed signal path during power-up, reset, or logic failure-critical for safety-critical monitoring loops. |
| Bidirectional SCR-based ESD protection | Clamps ±15kV transients in <5ns without affecting supply rails-avoids system-level voltage spikes seen with diode clamps. |
| Guaranteed on-resistance flatness | 2Ω (typ) variation over full signal range at +5V-maintains amplitude consistency in multi-channel audio mixing. |
| Rail-to-rail analog signal handling | Supports signals from 0V to V+ without clipping-enables use with op-amps, ADCs, and DACs operating at same supply. |
| Low THD + noise | 0.015% at 1kHz-meets broadcast-grade audio routing requirements without post-processing compensation. |
Applications
| Audio Signal Routing | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: Switching line-level stereo signals between multiple codecs, amplifiers, or measurement instruments in portable audio analyzers. IC Role / Device Role / Timing Role: Quad NC analog switch providing fail-safe signal continuity until actively opened by microcontroller GPIO. Use Value: Eliminates relay bounce, contact oxidation, and coil power draw while maintaining <0.02% THD across 20Hz–20kHz bandwidth. | Use Scenario: Multiplexing sensor excitation and response paths in handheld calibration tools used for pressure, temperature, and flow sensors. IC Role / Device Role / Timing Role: Precision analog path selector enabling sequential channel testing under microcontroller control. Use Value: 0.5nA leakage ensures accurate DC offset measurement; ±15kV ESD tolerance survives repeated probe contact in field service. |
| Battery-Powered Data Acquisition | Sample-and-Hold Circuits |
Use Scenario: Channel selection in 12-bit portable DMMs or environmental monitors powered by two AA cells (2.0–3.2V). IC Role / Device Role / Timing Role: Low-voltage analog multiplexer supporting operation down to +2V supply with guaranteed 120Ω RON max at +3V. Use Value: 1µA quiescent current extends battery life; rail-to-rail input allows direct interface with rail-sensing op-amps. | Use Scenario: Holding capacitor charging path control in precision ADC front-ends for medical ECG or EEG instrumentation. IC Role / Device Role / Timing Role: NC switch isolating hold capacitor from input source during acquisition phase. Use Value: 5pC charge injection prevents voltage step errors; matched RON minimizes settling time mismatch across channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4611EUD | Quad SPST, mixed NO/NC configuration (2NO + 2NC); identical 14-pin TSSOP footprint and ESD rating. | Suitable when both normally open and normally closed paths are required in same design. | Select MAX4611EUD only if dual-mode switching is needed; MAX4630EUD provides superior channel consistency for pure NC use cases. |
| ADG1434BRUZ | Quad SPST NC switch with 4.7Ω typical on-resistance at +5V; higher cost; 16-pin TSSOP package. | Preferred for ultra-low RON applications where board space permits larger footprint. | Choose ADG1434BRUZ when on-resistance below 10Ω is mandatory; MAX4630EUD offers better cost-performance balance for general-purpose NC routing. |
Compared with MAX4611EUD and ADG1434BRUZ, the MAX4630EUD delivers optimal trade-off of NC-only reliability, ±15kV ESD robustness, and 14-pin TSSOP compatibility with legacy 74HC4066 layouts-making it ideal for cost-sensitive, space-constrained, fail-safe analog routing.
Availability
MAX4630EUD is available at Aetrix Electronics and suitable for battery-powered systems, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply and long-term industrial availability.
Supply support for MAX4630EUD 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, communications, and consumer applications.
The MAX4630EUD belongs to Maxim's high-ESD-protection analog switch family, engineered specifically for replacing electromechanical relays in portable test gear, audio infrastructure, and safety-critical signal paths where robustness and predictable NC behavior are essential.
FAQ
What is the maximum supply voltage rating for the MAX4630EUD?
The MAX4630EUD has an absolute maximum supply voltage (V+) of +13V referenced to GND, but its specified operational range is +2V to +12V. Operation at +12V requires a minimum 0.1µF bypass capacitor placed directly between V+ and GND near the IC to suppress ESD-induced supply transients. Exceeding +13V risks permanent damage per Absolute Maximum Ratings.
Does the MAX4630EUD support rail-to-rail analog signals?
Yes, the MAX4630EUD supports rail-to-rail analog signal ranges from 0V to V+ on all COM, NC, and NO terminals. This capability allows direct interfacing with op-amps, ADCs, and DACs operating at the same supply voltage without level-shifting circuitry-verified across the full –40°C to +85°C temperature range and at supply voltages from +2V to +12V.
How does the ESD protection on the MAX4630EUD work without affecting system supply rails?
The MAX4630EUD uses on-chip bidirectional silicon-controlled rectifiers (SCRs) between NC/NO pins and GND-not diode clamps to V+. During an ESD event, the SCR triggers in <5ns and shunts >95% of surge current directly to ground, avoiding supply rail coupling. A series resistor limits residual current into V+, making external decoupling sufficient-unlike diode-clamp schemes that risk spiking shared supplies.
What is the on-resistance matching specification for the MAX4630EUD?
The MAX4630EUD guarantees on-resistance matching (∆RON = RONMAX – RONMIN) of 0.5Ω (typical) and 3Ω (maximum) at +5V across all four NC switches. This tight matching ensures consistent gain and phase response in multi-channel audio summing or differential signal routing applications, validated over the full –40°C to +85°C operating range.
Is the MAX4630EUD pin-compatible with the 74HC4066?
Yes, the MAX4630EUD is explicitly designed as a pin-compatible replacement for the industry-standard 74HC4066 in 14-pin TSSOP, SO, and DIP packages. Its pinout matches the 74HC4066 functional assignment for control inputs (IN1–IN4), common terminals (COM1–COM4), and NC outputs (NC1–NC4), enabling drop-in upgrades with enhanced ESD protection, lower leakage, and wider supply range.
MAX4630EUD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 70Ohm
- Channel-to-Channel Matching (ΔRon):
- 500mOhm
- Voltage - Supply, Single (V+):
- 2V ~ 12V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 150ns, 80ns
- -3db Bandwidth:
- 300MHz
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 20pF, 12pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -90dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
MAX4630EUD FAQ
1.How can I place an order for MAX4630EUD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4630EUD 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 MAX4630EUD reliable?
The price and inventory of MAX4630EUD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4630EUD is usually 5 days.
3.What payment methods are accepted for MAX4630EUD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4630EUD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4630EUD?
MAX4630EUD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4630EUD 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 MAX4630EUD?
For technical support, including MAX4630EUD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4630EUD requirements.
6.How does Aetrix verify that MAX4630EUD is sourced from the original manufacturer or authorized distributors?
All MAX4630EUD 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 MAX4630EUD meets industry standards.
7.What is the process for return or replacement of MAX4630EUD?
All MAX4630EUD units undergo pre-shipment inspection (PSI). If there is an issue with MAX4630EUD, 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 MAX4630EUD part is unused and in its original packaging.
Return procedure for MAX4630EUD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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