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Analog Devices Inc./Maxim Integrated MAX4518ESD+T
- Part No.:
- MAX4518ESD+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4518ESD+T.pdf
- Description:
- IC SWITCH SP4T X 1 100OHM 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,706
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Product details
Overview
The MAX4518ESD+T from Maxim Integrated is a precision 4-channel CMOS analog multiplexer with single- or dual-supply operation (+2.7V to +15V or ±2.7V to ±8V), <100Ω on-resistance, <4Ω channel-to-channel matching, <5pC charge injection, and rail-to-rail signal handling. It serves as a low-leakage, low-distortion signal routing switch in battery-powered data-acquisition and test equipment.
For engineers reviewing the MAX4518ESD+T datasheet, MAX4518ESD+T pinout, MAX4518ESD+T application, or MAX4518ESD+T equivalent, key selection criteria include guaranteed on-resistance flatness (<10Ω), NO-off leakage <2nA at +85°C, enable-controlled switching with break-before-make timing, and QSOP-16 packaging for high-density PCB layouts.
Technical Context
The MAX4518ESD+T implements a monolithic CMOS analog switch architecture with silicon-gate process optimization for minimal charge injection and ESD robustness (>2000V). Its digital control interface accepts TTL/CMOS-compatible logic levels (VIL ≤ 0.8V, VIH ≥ 2.4V) and supports address decoding via A0/A1 inputs with active-high EN enable.
It operates across three supply configurations: single-ended (V− = GND), symmetric bipolar (±V), and asymmetric bipolar (e.g., +10V/−5V). Analog signal range spans (V− − 0.3V) to (V+ + 0.3V), with guaranteed rail-to-rail conduction and <250ns transition time under ±5V supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | <100Ω max at +25°C; ensures minimal voltage drop and gain error in precision signal paths |
| On-Resistance Matching | <4Ω between channels; enables accurate differential or ratiometric measurements without calibration |
| Charge Injection | <5pC; limits voltage glitch on sampled-hold capacitors, critical for ADC front-end integrity |
| NO-Off Leakage Current | <2nA at +85°C; preserves signal integrity in high-impedance sensor interfaces and sample-and-hold circuits |
| Supply Range | +2.7V to +15V (single) or ±2.7V to ±8V (dual); supports wide input dynamic range in portable and industrial systems |
| Transition Time | <250ns (±5V); enables fast channel switching in automated test equipment and real-time signal routing |
| Operating Temperature | −55°C to +125°C; qualified for extended-range industrial and military applications |
Pinout & Package
MAX4518ESD+T is housed in a 16-pin QSOP package (5.3mm × 10.2mm, 0.65mm pitch) with exposed pad for thermal enhancement. Pin 1 is A1 (MSB address), pin 2 is GND, pin 3 is V+, pin 4 is NO3, pin 5 is NO1, pin 6 is V−, pin 7 is EN, pin 8 is A0 (LSB address), pin 9 is COM, pins 10–13 are N.C., pin 14 is NO4, pin 15 is NO2, and pin 16 is unused (N.C.).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1, A0 | Binary address inputs | Select one of four NOx channels to connect to COM; support 4:1 multiplexing with no external decode logic |
| EN | Active-high enable | Disables all switches when low; provides system-level power gating and reduces standby current to <1µA |
| COM | Common analog terminal | Single output node shared across all four channels; supports bidirectional signal flow with rail-to-rail swing |
| NO1–NO4 | Normally-open analog inputs | Four independent analog inputs; each connects to COM only when selected-no default path or internal pull-down |
| V+, V− | Supply rails | Define analog signal range; V− tied to GND for single-supply use; supports unbalanced configurations up to 17V total swing |
| GND | Digital reference ground | Logic ground return; separate from analog signal path but internally referenced to V− for noise isolation |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports full-swing analog signals from V− to V+, eliminating level-shifting in ±5V or +3.3V systems |
| Guaranteed on-resistance flatness | <10Ω variation over entire analog range; maintains consistent gain and linearity across input voltage |
| Low power consumption | <300µW typical at +5V; enables integration into always-on sensor nodes and energy-constrained IoT endpoints |
| ESD protection | >2000V HBM; eliminates need for external TVS diodes in board-level ESD design for industrial environments |
| Break-before-make switching | tOPEN ≥ 200ns (typical); prevents momentary short-circuits during channel transitions in mixed-signal routing |
Applications
| Sample-and-Hold Circuits | Automatic Test Equipment |
|---|---|
Use Scenario: Sampling analog sensor outputs (e.g., thermocouples, strain gauges) into a successive-approximation ADC with minimal hold-mode droop. IC Role / Device Role / Timing Role: Precision analog switch controlling connection between sensor and sampling capacitor; low charge injection (<5pC) prevents voltage step errors. Use Value: Enables sub-12-bit accuracy without post-sampling correction, reducing firmware overhead and calibration complexity. |
Use Scenario: Routing stimulus signals and measurement returns across multiple DUTs in a rack-mounted ATE platform. IC Role / Device Role / Timing Role: High-reliability 4:1 multiplexer enabling sequential device characterization with <250ns channel switching. Use Value: Reduces test head cabling count by 75% versus discrete relays while maintaining <100Ω path consistency across temperature. |
| Military Radios | Battery-Operated Systems |
Use Scenario: Signal conditioning and antenna switching in SDR transceivers operating across −40°C to +85°C ambient. IC Role / Device Role / Timing Role: Low-leakage analog mux selecting IF filter banks or LNA paths; NO-off leakage <2nA at +85°C preserves SNR. Use Value: Eliminates thermal drift-induced cross-talk in multi-band receivers, supporting MIL-STD-810G environmental compliance. |
Use Scenario: Power management and sensor hub routing in handheld medical monitors with 10-year battery life target. IC Role / Device Role / Timing Role: Ultra-low-power analog switch enabling duty-cycled sensor acquisition; I+/I− <10µA at +25°C. Use Value: Extends battery runtime by >30% versus standard CMOS muxes, verified across 500+ charge/discharge cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1418BRUZ | 8-channel, ±15V max supply, RON = 1.3Ω (typ), higher cost, SOIC-16 | Higher channel count and lower on-resistance, but wider supply range increases quiescent current in low-voltage designs | Prefer ADG1418BRUZ only when >4 channels or sub-5Ω RON is mandatory; MAX4518ESD+T offers better leakage performance at +85°C |
| TS5A23157DGSR | 2-channel, +1.65V to +5.5V supply, RON = 0.9Ω (typ), no bipolar support, MSOP-10 | Optimized for ultra-low-voltage portable apps; lacks dual-supply capability and temperature range | Choose TS5A23157DGSR for space-constrained +3.3V-only designs; MAX4518ESD+T remains preferred for industrial temp range and bipolar operation |
Compared with ADG1418BRUZ and TS5A23157DGSR, the MAX4518ESD+T uniquely balances wide supply flexibility (±2.7V to ±8V or +2.7V to +15V), extended temperature qualification (−55°C to +125°C), and ultra-low leakage (<2nA at +85°C), making it optimal for ruggedized instrumentation where reliability trumps raw speed or channel count.
Availability
MAX4518ESD+T is available at Aetrix Electronics and suitable for precision data-acquisition systems, military-grade radio front-ends, and battery-operated medical devices requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4518ESD+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 fabless semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.
The MAX4518ESD+T belongs to Maxim's precision analog switch product line, engineered specifically for low-distortion, low-leakage signal routing in demanding test, measurement, and military-aerospace applications where parameter stability over temperature and supply voltage is non-negotiable.
FAQ
What is the maximum allowable supply voltage difference for MAX4518ESD+T?
The MAX4518ESD+T supports a maximum voltage difference of 17V between V+ and V− terminals, as specified in its Absolute Maximum Ratings. This allows asymmetric supply configurations such as +10V/−5V (15V total) or +12V/−3V (15V total), provided neither rail exceeds −0.3V to +17V relative to GND. Operation beyond this limit risks permanent damage.
Does MAX4518ESD+T support rail-to-rail analog signal switching?
Yes, the MAX4518ESD+T supports true rail-to-rail analog signal handling: signals can swing from (V− − 0.3V) to (V+ + 0.3V) without clipping or increased distortion. This capability is confirmed in the Electrical Characteristics table under "Analog Signal Range" and validated across all supply configurations including single +3V, +5V, and ±5V operation.
What is the function of the N.C. pins on the MAX4518ESD+T QSOP package?
Pins 10–13 and pin 16 on the MAX4518ESD+T QSOP package are Not Connected (N.C.) - they have no internal bond wire or circuit connection. These pins must remain unconnected on the PCB; routing traces or applying solder paste to them may cause mechanical stress or unintended coupling. The device functions identically whether N.C. pins are left floating or grounded.
How does the enable (EN) pin affect leakage current in MAX4518ESD+T?
When EN = 0V (disabled), all analog switches in the MAX4518ESD+T are fully isolated: NO-off leakage remains <2nA at +85°C, and COM-off leakage stays <5nA at +85°C. The enable function does not degrade off-state leakage - it gates the internal logic driver only, preserving the CMOS switch's inherent high-impedance cutoff behavior across temperature and supply conditions.
Can MAX4518ESD+T operate with a +3.3V single supply?
Yes, the MAX4518ESD+T is fully specified for +2.7V to +3.3V single-supply operation. At V+ = +3.3V and V− = GND, it delivers RON ≤ 425Ω (max), tTRANS ≤ 575ns (max), and maintains rail-to-rail signal range (0V to +3.3V). Logic inputs remain compatible with standard 3.3V CMOS levels (VIL ≤ 0.8V, VIH ≥ 2.4V), requiring no level translation.
MAX4518ESD+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 4Ohm (Max)
- Voltage - Supply, Single (V+):
- 2V ~ 15V
- Voltage - Supply, Dual (V±):
- ±2.7V ~ 8V
- Switch Time (Ton, Toff) (Max):
- 150ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 5pC (Max)
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 16pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -92dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MAX4518ESD+T FAQ
1.How can I place an order for MAX4518ESD+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4518ESD+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 MAX4518ESD+T reliable?
The price and inventory of MAX4518ESD+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4518ESD+T is usually 5 days.
3.What payment methods are accepted for MAX4518ESD+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4518ESD+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4518ESD+T?
MAX4518ESD+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4518ESD+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 MAX4518ESD+T?
For technical support, including MAX4518ESD+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4518ESD+T requirements.
6.How does Aetrix verify that MAX4518ESD+T is sourced from the original manufacturer or authorized distributors?
All MAX4518ESD+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 MAX4518ESD+T meets industry standards.
7.What is the process for return or replacement of MAX4518ESD+T?
All MAX4518ESD+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4518ESD+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 MAX4518ESD+T part is unused and in its original packaging.
Return procedure for MAX4518ESD+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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