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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:3,228
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Product details
Overview
The MAX4630ESD from Maxim Integrated is a low-voltage, ±15kV ESD-protected, quad single-pole/single-throw (SPST) analog switch with normally closed (NC) configuration, 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 on-resistance flatness (2Ω typ), TTL/CMOS logic compatibility, -40°C to +85°C operation, 14-pin SO package, and ESD robustness per IEC 1000-4-2 air-gap (±15kV) and contact (±8kV) discharge standards.
Technical Context
This device implements four independent NC-configured CMOS SPST switches, each controlled by a dedicated TTL/CMOS-compatible digital input (IN1–IN4), with bidirectional SCR-based ESD protection on all NO/NC pins enabling ±15kV HBM and air-gap immunity without latchup. The internal architecture supports rail-to-rail analog signal switching across the full 0V to V+ range.
Operation is guaranteed from +2V to +12V single supply, with on-resistance matching of 0.5Ω (typ) and flatness of 2Ω (typ) at +5V - critical for precision multiplexing and low-distortion audio paths. Charge injection is limited to 5pC, and THD is 0.015% at 20Hz–20kHz into 600Ω.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Quad SPST, normally closed (NC) configuration - each switch conducts when control input is LOW. |
| On-Resistance (max) | 70Ω at +5V - ensures minimal voltage drop and power loss in signal paths up to ±5V swing. |
| 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 IEC 1000-4-2 contact - eliminates need for external TVS diodes in front-panel I/O. |
| Supply Range | +2V to +12V single supply - supports direct integration into 3.3V, 5V, and 9V battery systems without level-shifting. |
| Bandwidth (-3dB) | >300MHz - enables high-fidelity video routing and RF sampling applications up to UHF. |
| THD + Noise | 0.015% at 20Hz–20kHz - meets professional audio line-level switching requirements with negligible harmonic distortion. |
Pinout & Package
MAX4630ESD is housed in a 14-pin small-outline (SO) package, 3.9mm × 8.65mm body, 1.27mm pitch, JEDEC MS-012AC compliant, with exposed pad not present and moisture sensitivity level (MSL) 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC1 | Analog terminal of Switch 1 - connects to COM1 when IN1 = LOW; protected by on-chip SCR against ±15kV ESD. |
| 2 | COM1 | Common node of Switch 1 - carries bidirectional analog signals from NC1 or NO1 (not present in MAX4630). |
| 3 | NC2 | Analog terminal of Switch 2 - connects to COM2 when IN2 = LOW; identical ESD protection and leakage specs as NC1. |
| 4 | COM2 | Common node of Switch 2 - electrically isolated from COM1; matched RON ensures channel-to-channel consistency. |
| 5 | IN2 | Digital control input for Switch 2 - accepts TTL/CMOS levels (VIH ≥ 2.4V, VIL ≤ 0.8V at +5V); 1µA max leakage. |
| 6 | IN3 | Digital control input for Switch 3 - synchronous logic interface; no internal pull-up/down; requires external drive. |
| 7 | GND | Analog and digital ground reference - must be low-impedance connection to minimize crosstalk and ESD return path inductance. |
| 8 | NC3 | Analog terminal of Switch 3 - connects to COM3 when IN3 = LOW; shares same RON flatness (2Ω typ) as other NC channels. |
| 9 | COM3 | Common node of Switch 3 - supports rail-to-rail signal swing (0V to V+) with <0.015% THD. |
| 10 | COM4 | Common node of Switch 4 - fully decoupled from other COM pins; enables independent signal routing per channel. |
| 11 | NC4 | Analog terminal of Switch 4 - connects to COM4 when IN4 = LOW; validated for ±15kV ESD survival without parameter shift. |
| 12 | IN4 | Digital control input for Switch 4 - timing-matched to IN1–IN3 (tON/tOFF ≤ 180ns at +5V, TA = +85°C). |
| 13 | IN1 | Digital control input for Switch 1 - controls NC1/COM1 conduction; compatible with 3.3V and 5V microcontrollers directly. |
| 14 | V+ | Positive supply input - bypass with 0.1µF ceramic capacitor to GND; absolute max 13V; powers internal logic and switch drivers. |
Key Features
| Feature | Design Value |
|---|---|
| ±15kV ESD protection on NC pins | SCR-based clamping on NC1–NC4 eliminates external protection components and prevents latchup during hot-plug events. |
| Guaranteed on-resistance flatness | 2Ω (typ) over full signal range at +5V - maintains consistent gain and linearity in precision instrumentation front-ends. |
| Rail-to-rail analog signal handling | Supports 0V to V+ input/output swing - enables seamless interfacing with op-amps, ADCs, and DACs without level-shifting. |
| Low THD + noise | 0.015% at audio frequencies - satisfies broadcast-grade audio routing and medical sensor signal path requirements. |
| TTL/CMOS logic compatibility | Direct interface with 3.3V/5V microcontrollers and FPGAs - no level translators needed for IN1–IN4 control lines. |
Applications
| Audio Signal Routing | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: Switching line-level stereo signals between multiple sources (DACs, codecs, amplifiers) in portable audio mixers. IC Role / Device Role / Timing Role: Quad NC analog switch providing low-distortion, low-crosstalk signal path selection under microcontroller control. Use Value: 0.015% THD and >300MHz bandwidth preserve audio fidelity; ±15kV ESD protects front-panel jacks from user-handling damage. | Use Scenario: Multiplexing DUT (device under test) connections to measurement instruments (DMMs, SMUs) in benchtop ATE racks. IC Role / Device Role / Timing Role: Relay-replacement analog switch enabling fast, wear-free, low-noise signal path reconfiguration. Use Value: 70Ω max RON and 0.5nA leakage ensure accurate low-current measurements; 14-pin SO footprint minimizes PCB area vs. electromechanical relays. |
| Battery-Powered Data Acquisition | Sample-and-Hold Circuits |
Use Scenario: Selecting among multiple sensor outputs (thermocouples, RTDs, strain gauges) in handheld diagnostic tools. IC Role / Device Role / Timing Role: Low-power analog multiplexer with rail-to-rail input capability and minimal charge injection (5pC). Use Value: 0.5µW typical power dissipation extends battery life; +2V to +12V operation supports single-cell Li-ion (3.0–4.2V) and dual-cell alkaline (2.4–3.2V) supplies. | Use Scenario: Isolating hold capacitors from input sources during acquisition phase in precision ADC front-ends. IC Role / Device Role / Timing Role: NC-configured switch disconnecting hold capacitor from input during sampling, then connecting it to ADC input. Use Value: 5pC charge injection minimizes voltage step error on hold capacitor; matched RON (0.5Ω typ) ensures consistent settling time 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 |
|---|---|---|---|
| MAX4611ESA+ | Quad SPST NC switch in 16-pin SO; 60Ω max RON at +5V; ±15kV HBM only (no IEC 1000-4-2 rating); 1.5µA max I+ | Lacks IEC-rated ESD protection; higher supply current; larger package - suitable where board space and ESD rigor are less critical. | Select MAX4611ESA+ only if IEC 1000-4-2 compliance is unnecessary and lower RON is prioritized over ESD robustness. |
| ADG1411BRUZ | Quad SPST NC switch in 16-pin TSSOP; 1.8Ω max RON at +5V; ±10kV HBM; 100pA leakage at +25°C; requires dual supply (±15V or +12V/–5V) | Superior RON and leakage but incompatible single-supply operation; no IEC ESD rating; higher cost and layout complexity. | Choose ADG1411BRUZ only for ultra-low-RON precision applications with available dual supply and no IEC 1000-4-2 requirement. |
Compared with MAX4611ESA+ and ADG1411BRUZ, the MAX4630ESD uniquely delivers IEC 1000-4-2 certified ±15kV air-gap ESD protection in a compact 14-pin SO package with single +2V to +12V operation - making it optimal for ruggedized portable and industrial signal routing where reliability and design simplicity are paramount.
Availability
MAX4630ESD is available at Aetrix Electronics and suitable for battery-powered systems, audio signal routing, and automated test equipment 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, communications, and consumer applications.
The MAX4630ESD belongs to the MAX4620/MAX4630/MAX4640 family of ±15kV ESD-protected quad SPST analog switches - engineered specifically for reliable, low-distortion signal routing in space-constrained, ESD-prone environments like handheld test gear and portable audio.
FAQ
What is the maximum supply voltage rating for the MAX4630ESD?
The MAX4630ESD has an absolute maximum supply voltage (V+) of +13V referenced to GND. It operates reliably across a guaranteed range of +2V to +12V single supply. Exceeding +13V risks permanent damage. For +12V operation, a 0.1µF ceramic bypass capacitor placed close to the V+ and GND pins is mandatory to suppress supply transients induced during ESD events.
Does the MAX4630ESD support rail-to-rail analog signal switching?
Yes, the MAX4630ESD supports true rail-to-rail analog signal switching - its NC and COM terminals handle input voltages from 0V to V+ without distortion or clipping. This is enabled by its CMOS process and internal level-shifting circuitry, allowing direct interfacing with op-amps, ADCs, and DACs operating at the same supply rails. Signal integrity is preserved with 0.015% THD at audio frequencies.
How does the ESD protection on the MAX4630ESD work, and what standards does it meet?
The MAX4630ESD uses on-chip bidirectional SCRs between each NC pin and GND to clamp ±15kV ESD strikes within nanoseconds. It meets ±15kV per Human Body Model (HBM), ±15kV per IEC 1000-4-2 air-gap discharge, and ±8kV per IEC 1000-4-2 contact discharge. Unlike diode clamps, this SCR architecture avoids supply rail disturbance, ensuring system-wide reliability during ESD events.
What is the on-resistance matching specification for the MAX4630ESD, and why does it matter?
The MAX4630ESD guarantees on-resistance matching (∆RON) of 0.5Ω (typical) between its four NC switches at +5V. This tight matching ensures uniform gain, attenuation, and settling behavior across all channels - critical in applications like multi-channel data acquisition, balanced audio routing, and precision instrumentation where channel-to-channel consistency directly impacts measurement accuracy and signal fidelity.
Can the MAX4630ESD be used with a 3.3V logic controller?
Yes, the MAX4630ESD's digital inputs (IN1–IN4) are TTL/CMOS-compatible and accept 3.3V logic levels directly: VIH is guaranteed ≥ 2.4V and VIL ≤ 0.8V at +5V supply, and at +3.3V supply, VIH ≥ 2.0V and VIL ≤ 0.6V. No level-shifting circuitry is required when driving from standard 3.3V microcontrollers or FPGAs, simplifying interface design and reducing BOM count.
MAX4630ESD 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-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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