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Analog Devices Inc./Maxim Integrated MAX4518ESD
- Part No.:
- MAX4518ESD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4518ESD.pdf
- Description:
- IC SWITCH SP4T X 1 100OHM 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,782
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Product details
Overview
The MAX4518ESD from Maxim Integrated is a precision 4-channel CMOS analog multiplexer with low on-resistance (<100Ω), matched within 4Ω between channels, rail-to-rail signal handling, and operation from +2.7V to +15V single supply or ±2.7V to ±8V dual supplies - used in low-voltage data-acquisition systems requiring high channel-to-channel consistency and minimal charge injection.
For engineers reviewing the MAX4518ESD datasheet, MAX4518ESD pinout, MAX4518ESD application, or MAX4518ESD equivalent, key selection criteria include guaranteed on-resistance flatness (<10Ω), NO-off leakage <2nA at +85°C, electrostatic discharge protection >2000V, and compatibility with TTL/CMOS logic inputs in industrial temperature-grade SO packages.
Technical Context
The MAX4518ESD implements a monolithic CMOS switch architecture with silicon-gate process optimization for low charge injection (<5pC) and tightly controlled on-resistance matching. Its enable-controlled 4:1 analog mux topology supports break-before-make switching with tOPEN ≤ 40ns and transition time <250ns under ±5V supplies.
It features dual-supply flexibility (±2.7V to ±8V) or single-supply operation (+2.7V to +15V), with rail-to-rail analog signal range up to ±4.5V and guaranteed COM- and NO-off leakage below 5nA at +85°C. Logic inputs are TTL/CMOS-compatible, and internal ESD protection exceeds 2000V per HBM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | <100Ω max at +25°C; ensures minimal signal attenuation and voltage drop in precision analog paths |
| On-Resistance Matching | <4Ω between channels; enables accurate ratiometric measurements and multi-channel calibration |
| Charge Injection | <5pC; reduces sampling error and settling time in sample-and-hold circuits |
| NO-Off Leakage | <2nA at +85°C; maintains signal integrity during channel disable in high-impedance sensor interfaces |
| Supply Range | +2.7V to +15V single or ±2.7V to ±8V dual; supports battery-powered and industrial bipolar signal chains |
| Switching Speed | tTRANS <250ns; suitable for multiplexed ADC front-ends operating up to ~1MHz effective throughput |
| ESD Protection | >2000V HBM; enhances robustness in automated test equipment and field-deployable instrumentation |
Pinout & Package
MAX4518ESD is supplied in a 14-pin SO (Small Outline) package rated for -40°C to +85°C operation. Pin functions are validated per Maxim's official pin configuration diagrams and electrical specifications.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A1 | MSB address input for 4-channel selection (A1,A0); controls which NOx connects to COM |
| 2 | GND | Logic ground reference; must be connected to system ground for proper CMOS input threshold operation |
| 3 | V+ | Positive supply input; supports +2.7V to +15V single supply or +4.5V to +5.5V in dual-supply mode |
| 4 | NO3 | Analog input channel 3 (Normally Open); routed to COM when A1=1, A0=1, EN=1 |
| 5 | NO1 | Analog input channel 1 (Normally Open); routed to COM when A1=0, A0=0, EN=1 |
| 6 | V- | Negative supply input; connect to GND for single-supply use; supports -2.7V to -8V in dual mode |
| 7 | EN | Active-high enable input; disables all switches when low, reducing leakage and power consumption |
| 8 | A0 | LSB address input; combined with A1 to select one of four analog paths to COM |
| 9 | NO4 | Analog input channel 4 (Normally Open); routed to COM when A1=1, A0=0, EN=1 |
| 10 | N.C. | No internal connection; must remain unconnected per datasheet guidance |
| 11 | N.C. | No internal connection; must remain unconnected |
| 12 | N.C. | No internal connection; must remain unconnected |
| 13 | COM | Common analog output terminal; bidirectional signal path shared across all four channels |
| 14 | NO2 | Analog input channel 2 (Normally Open); routed to COM when A1=0, A0=1, EN=1 |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V– to V+ without clipping, enabling full dynamic range utilization in ±5V or +5V systems |
| Guaranteed on-resistance flatness | <10Ω variation over full signal range (±4.5V), minimizing distortion in audio and sensor signal routing |
| TTL/CMOS logic compatibility | Accepts VAH ≥2.4V and VAL ≤0.8V, eliminating level-shifter requirements in mixed-signal microcontroller interfaces |
| Low power consumption | <300µW typical quiescent power, critical for battery-operated automatic test equipment and portable instrumentation |
| Break-before-make switching | tOPEN ≤40ns ensures no momentary short between channels during address transitions, preventing signal crosstalk |
Applications
| Sample-and-Hold Circuits | Automatic Test Equipment |
|---|---|
Use Scenario: Multiplexing multiple sensor outputs into a single high-precision ADC input with minimal settling error. IC Role / Device Role / Timing Role: 4-channel analog switch providing low-charge-injection path selection synchronized to ADC sampling clock. Use Value: Charge injection <5pC and on-resistance flatness <10Ω ensure sub-LSB error in 14-bit+ data acquisition systems. |
Use Scenario: Routing calibrated reference signals and DUT outputs to measurement instruments in production test racks. IC Role / Device Role / Timing Role: Precision analog mux enabling fast, repeatable channel switching under microcontroller control. Use Value: On-resistance match <4Ω and leakage <2nA at +85°C maintain measurement accuracy across thermal cycles and long test sequences. |
| Heads-Up Displays | Battery-Operated Systems |
Use Scenario: Selecting between multiple video or graphics signal sources feeding a HUD projection driver IC. IC Role / Device Role / Timing Role: Low-distortion analog switch supporting composite video or RGB-level signal routing. Use Value: Rail-to-rail operation and <250ns transition time preserve signal fidelity and timing margins in real-time display systems. |
Use Scenario: Managing analog sensor inputs (temperature, voltage, current) in handheld diagnostic tools powered by Li-ion batteries. IC Role / Device Role / Timing Role: Ultra-low-power analog multiplexer enabling extended runtime while maintaining signal integrity. Use Value: <300µW quiescent power and +2.7V minimum supply allow direct interface to 3.3V or 3.0V battery rails without regulation overhead. |
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 typical, but higher charge injection (12pC) and no guaranteed flatness spec | Better for high-voltage industrial PLC I/O; less suitable for low-leakage, low-charge-injection precision sampling | Select MAX4518ESD when on-resistance matching <4Ω and charge injection <5pC are mandatory; ADG1418BRUZ where channel count and voltage range dominate |
| TS5A23157DGSR | 2-channel, +1.65V to +5.5V supply only, RON = 0.9Ω typical, but NO-off leakage = 100nA at +85°C (50× higher) | Optimized for portable USB/audio switching; insufficient leakage performance for high-Z sensor multiplexing | Choose MAX4518ESD for -40°C to +85°C operation with sub-2nA leakage; TS5A23157DGSR only for cost-sensitive, low-voltage consumer audio routing |
Compared with ADG1418BRUZ and TS5A23157DGSR, the MAX4518ESD uniquely balances tight on-resistance matching (<4Ω), ultra-low leakage (<2nA), and wide supply flexibility (+2.7V to +15V or ±2.7V to ±8V) - making it the preferred choice for precision, temperature-stable analog multiplexing where signal integrity and thermal reliability are critical.
Availability
MAX4518ESD is available at Aetrix Electronics and suitable for automatic test equipment, battery-operated instrumentation, and military-grade heads-up displays requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4518ESD 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 and mixed-signal ICs for precision, reliability, and energy efficiency in demanding environments.
The MAX4518ESD belongs to Maxim's precision analog multiplexer product line, engineered specifically for low-leakage, low-distortion signal routing in data-acquisition, test, and aerospace systems where parameter stability over temperature and supply variation is essential.
FAQ
What is the operating temperature range of the MAX4518ESD?
The MAX4518ESD is specified for operation from -40°C to +85°C, as confirmed by its "E" grade suffix and ordering information table listing MAX4518ESD with -40°C to +85°C temperature range in 14-pin SO package. This extended industrial temperature rating makes the MAX4518ESD suitable for deployment in harsh-environment instrumentation and automotive-adjacent test systems where ambient temperatures exceed commercial-grade limits.
Does the MAX4518ESD support single-supply operation?
Yes, the MAX4518ESD supports single-supply operation from +2.7V to +15V, with V– connected to GND. Electrical characteristics tables explicitly include "Single +5V Supply" and "Single +3V Supply" test conditions, and the Applications Information section confirms V– grounding for single-supply use. This capability allows direct integration into 3.3V and 5V microcontroller-based data loggers without dual-rail generation.
What is the maximum analog signal range supported by the MAX4518ESD?
The MAX4518ESD supports an analog signal range from V– to V+, up to ±4.5V with ±5V supplies or 0V to +4.5V with +5V single supply, as verified in the "Analog Signal Range" parameter row of the dual- and single-supply electrical characteristics tables. This rail-to-rail capability ensures full utilization of ADC input ranges and preserves dynamic range in precision measurement front-ends.
How does the enable (EN) pin function on the MAX4518ESD?
The EN pin on the MAX4518ESD is an active-high digital control input that globally enables or disables all four analog switches. When EN = 0V (logic low), all channels are off and leakage currents are minimized; when EN = V+ or ≥2.4V (logic high), channel selection via A1/A0 becomes active. Timing diagrams confirm tON(EN) <250ns and tOFF(EN) <200ns, enabling rapid power-gating in burst-mode acquisition systems.
Is the MAX4518ESD pin-compatible with other variants in the MAX4518 family?
Yes, the MAX4518ESD shares identical pinout and footprint with other 14-pin SO variants including MAX4518CSD and MAX4518ESE, as confirmed by the "Pin Configurations" diagram and "Ordering Information" table showing MAX4518ESD, MAX4518CSD, and MAX4518ESE all mapped to 14 SO package. This allows direct substitution within the same temperature grade without PCB redesign, provided supply and signal requirements align.
MAX4518ESD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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 FAQ
1.How can I place an order for MAX4518ESD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4518ESD 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 reliable?
The price and inventory of MAX4518ESD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4518ESD is usually 5 days.
3.What payment methods are accepted for MAX4518ESD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4518ESD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4518ESD?
MAX4518ESD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4518ESD 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?
For technical support, including MAX4518ESD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4518ESD requirements.
6.How does Aetrix verify that MAX4518ESD is sourced from the original manufacturer or authorized distributors?
All MAX4518ESD 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 meets industry standards.
7.What is the process for return or replacement of MAX4518ESD?
All MAX4518ESD units undergo pre-shipment inspection (PSI). If there is an issue with MAX4518ESD, 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 part is unused and in its original packaging.
Return procedure for MAX4518ESD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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