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Analog Devices Inc./Maxim Integrated MAX4630ESD+
- Part No.:
- MAX4630ESD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4630ESD+.pdf
- Description:
- IC SWITCH SPST-NCX4 70OHM 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,325
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Product details
Overview
MAX4630ESD+ from Maxim Integrated is a 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 - used in battery-powered audio routing and automated test equipment where mechanical relay replacement is required.
For engineers reviewing the MAX4630ESD+ datasheet, MAX4630ESD+ pinout, MAX4630ESD+ application, or MAX4630ESD+ equivalent, key selection criteria include guaranteed 70Ω on-resistance at 5V, ±15kV HBM ESD rating, 14-pin SO package compatibility, and NC-only switching topology versus NO/NC-mixed variants.
Technical Context
The MAX4630ESD+ implements four independent bilateral SPST switches with NC configuration, each controlled by TTL/CMOS-compatible digital inputs (IN1–IN4). Its internal SCR-based ESD protection activates within nanoseconds for ±15kV air-gap or contact discharge events on NO/NC terminals.
It operates from a single +2V to +12V supply, supports rail-to-rail analog signals up to V+, and maintains on-resistance flatness of 2Ω (typ) over the full signal range at 5V - critical for low-distortion audio and precision data-acquisition paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (max) | 70Ω at +5V - ensures minimal signal attenuation and voltage drop in low-voltage analog paths |
| Off-Leakage Current | ±0.5nA at +25°C - preserves signal integrity in high-impedance sample-and-hold or sensor interfaces |
| ESD Protection | ±15kV HBM, ±15kV IEC 1000-4-2 air-gap, ±8kV contact - eliminates need for external TVS diodes on switched lines |
| Supply Voltage Range | +2V to +12V single supply - enables direct integration into 3.3V, 5V, and 9V battery systems without level-shifting |
| -3dB Bandwidth | >300MHz - supports high-speed video, RF sampling, and broadband communications routing |
| Total Harmonic Distortion | 0.015% - meets fidelity requirements for professional audio signal switching |
| On-Resistance Matching | 0.5Ω (typ) at +5V - enables precise channel-to-channel gain matching in multi-path instrumentation |
Pinout & Package
MAX4630ESD+ is housed in a 14-pin SO (Small Outline) package, 150 mil width, with standard SOIC footprint and gull-wing leads compatible with automated PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NO1 | Analog switch 1 normally open terminal - unconnected when IN1 = LOW; forms path to COM1 when IN1 = HIGH |
| 2 | COM1 | Common terminal for switch 1 - bidirectional signal path between NO1 and NC1 |
| 3 | NO2 | Analog switch 2 normally open terminal - unconnected when IN2 = LOW; forms path to COM2 when IN2 = HIGH |
| 4 | COM2 | Common terminal for switch 2 - bidirectional signal path between NO2 and NC2 |
| 5 | IN2 | Digital control input for switch 2 - TTL/CMOS-compatible; HIGH enables connection between COM2 and NC2 |
| 6 | IN3 | Digital control input for switch 3 - active-HIGH logic controls NC3–COM3 closure |
| 7 | GND | Ground reference for logic and analog sections - must be low-impedance return path for ESD current |
| 8 | NC3 | Analog switch 3 normally closed terminal - connected to COM3 when IN3 = LOW; opens when IN3 = HIGH |
| 9 | COM3 | Common terminal for switch 3 - bidirectional path between NC3 and NO3 (NO3 not used in MAX4630) |
| 10 | COM4 | Common terminal for switch 4 - connects to NC4 when IN4 = LOW |
| 11 | NC4 | Analog switch 4 normally closed terminal - default-closed path to COM4; opens under IN4 HIGH control |
| 12 | IN4 | Digital control input for switch 4 - HIGH disables NC4–COM4 connection |
| 13 | IN1 | Digital control input for switch 1 - HIGH opens NC1–COM1 path (NC configuration) |
| 14 | V+ | Positive supply input - powers analog switch core and logic interface; bypass with 0.1µF capacitor near pin |
Key Features
| Feature | Design Value |
|---|---|
| ±15kV ESD protection on NO/NC pins | SCR-based clamping eliminates external protection components and prevents latchup during handling or system-level ESD events |
| Guaranteed on-resistance flatness | 2Ω (typ) at 5V - minimizes harmonic distortion across full signal swing in audio and measurement applications |
| NC-only switch architecture | Four dedicated normally closed paths - ideal for fail-safe signal routing, power-up default connectivity, or safety interlock circuits |
| Rail-to-rail analog signal range | Supports signals from GND to V+ - enables seamless interfacing with op-amps, ADCs, and DACs operating at supply rails |
| Low 0.5µW quiescent power | Reduces thermal load and extends battery life in portable instrumentation and handheld test gear |
Applications
| Battery-Powered Audio Routing | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: Switching microphone or line-level audio signals between multiple codec inputs in a portable voice recorder or wireless headset. IC Role / Device Role / Timing Role: Quad NC analog switch providing default-connected signal paths that open only during reconfiguration - avoids pop/click on power-up. Use Value: ±15kV ESD protection prevents damage during field servicing; 0.015% THD preserves audio fidelity without post-processing compensation. | Use Scenario: Multiplexing DUT (device under test) signals to measurement instruments in benchtop ATE racks. IC Role / Device Role / Timing Role: High-reliability, solid-state replacement for electromechanical relays - enabling faster test sequencing and eliminating contact wear. Use Value: 70Ω on-resistance and 300MHz bandwidth support accurate high-frequency parameter extraction; 0.5nA leakage ensures stable DC bias conditions. |
| Low-Voltage Data Acquisition | Sample-and-Hold Circuits |
Use Scenario: Channel selection in 12-bit SAR ADC front-ends powered from 3.3V LDOs in industrial sensor nodes. IC Role / Device Role / Timing Role: Low-leakage, rail-to-rail analog multiplexer - routing sensor outputs to shared ADC input while maintaining signal integrity. Use Value: 0.5nA off-leakage prevents capacitor discharge errors; on-resistance matching ≤0.5Ω ensures consistent channel gain calibration. | Use Scenario: Holding sampled voltage on a 100pF capacitor during ADC conversion cycles in precision instrumentation. IC Role / Device Role / Timing Role: Ultra-low charge injection (5pC) analog switch isolating hold capacitor from input source during acquisition phase. Use Value: 5pC charge injection limits voltage step error to <50µV on 100pF hold cap - enabling 16-bit effective resolution without correction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4620ESD+ | Quad NO (not NC) configuration; identical pinout, package, and electrical specs except switch state polarity | Suitable where default-open behavior is required (e.g., power-down isolation), not fail-safe continuity | Select MAX4620ESD+ only when circuit requires open-by-default signal paths at power-up or logic LOW control |
| ADG1434BRUZ | Quad SPST, NO/NC configurable per channel; 4.5Ω on-resistance (lower), but only ±4kV ESD rating; 16-pin TSSOP package | Used in high-precision lab equipment where ultra-low RON matters more than ESD robustness or SO footprint | Choose ADG1434BRUZ only if board redesign accommodates 16-pin TSSOP and system-level ESD is managed externally |
Compared with MAX4620ESD+, the MAX4630ESD+ provides fail-safe continuity at power-up and logic LOW, while ADG1434BRUZ offers lower on-resistance at the cost of ESD margin and package compatibility - making MAX4630ESD+ optimal for rugged, space-constrained, NC-required designs.
Availability
MAX4630ESD+ is available at Aetrix Electronics and suitable for battery-powered systems, audio and video signal routing, and low-voltage data-acquisition systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX4630ESD+ 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 high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.
The MAX4630ESD+ belongs to the MAX4620/MAX4630/MAX4640 family of ESD-hardened analog switches - engineered specifically for reliable signal routing in environments with frequent human handling or harsh ESD exposure.
FAQ
What is the maximum supply voltage rating for MAX4630ESD+?
The MAX4630ESD+ has an absolute maximum supply voltage (V+) of +13V referenced to GND, with guaranteed operation from +2V to +12V. Operation at +12V is supported with proper 0.1µF local bypassing to ground; exceeding +13V risks permanent damage per Absolute Maximum Ratings.
Does MAX4630ESD+ support rail-to-rail analog signals?
Yes, MAX4630ESD+ supports rail-to-rail analog signals - meaning it can pass voltages from GND to V+ without clipping or distortion. This capability is enabled by its CMOS switch architecture and is confirmed across the full specified supply range (+2V to +12V).
How does the ESD protection in MAX4630ESD+ work during a ±15kV event?
During a ±15kV ESD event on NO/NC pins, on-chip bidirectional SCRs activate within nanoseconds, shunting surge current to GND. The SCR remains latched until current falls below ~110mA (room temp); external current limiting below 35mA ensures reliable turn-off after the event - a design requirement explicitly stated in the MAX4630ESD+ datasheet.
Is MAX4630ESD+ pin-compatible with the 74HC4066?
Yes, MAX4630ESD+ is pin-compatible with the industry-standard 74HC4066 quad analog switch in 14-pin SO package. Pin assignments for V+, GND, IN1–IN4, COM1–COM4, and NC1–NC4 match the 74HC4066 layout - enabling drop-in replacement with enhanced ESD robustness and lower on-resistance.
What is the typical on-resistance matching between channels in MAX4630ESD+?
The MAX4630ESD+ guarantees on-resistance matching of 0.5Ω (typical) at +5V and +25°C, defined as RON(MAX) – RON(MIN) across all four switches. This tight matching ensures uniform gain and minimal crosstalk-induced errors in multi-channel instrumentation and balanced signal routing.
MAX4630ESD+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- 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-SOIC
MAX4630ESD+ FAQ
1.How can I place an order for MAX4630ESD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4630ESD+ 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 MAX4630ESD+ reliable?
The price and inventory of MAX4630ESD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4630ESD+ is usually 5 days.
3.What payment methods are accepted for MAX4630ESD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4630ESD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4630ESD+?
MAX4630ESD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4630ESD+ 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 MAX4630ESD+?
For technical support, including MAX4630ESD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4630ESD+ requirements.
6.How does Aetrix verify that MAX4630ESD+ is sourced from the original manufacturer or authorized distributors?
All MAX4630ESD+ 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 MAX4630ESD+ meets industry standards.
7.What is the process for return or replacement of MAX4630ESD+?
All MAX4630ESD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4630ESD+, 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 MAX4630ESD+ part is unused and in its original packaging.
Return procedure for MAX4630ESD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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