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Analog Devices Inc./Maxim Integrated MAX4551CEE+
- Part No.:
- MAX4551CEE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX4551CEE+.pdf
- Description:
- IC SW SPST-NCX4 120OHM 16QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,095
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Product details
Overview
MAX4551CEE+ from Maxim Integrated is a quad, low-voltage, normally closed (NC) SPST analog switch IC designed for rail-to-rail signal routing in precision analog and mixed-signal systems. It features ±15kV IEC 1000-4-2 ESD protection on NC/NO pins, 100Ω max on-resistance (flatness ≤8Ω), and 1nA COM off-leakage at +25°C. It operates from single +2.7V to +12V or dual ±2V to ±6V supplies and is used in battery-powered test equipment and avionics signal conditioning.
For engineers reviewing the MAX4551CEE+ datasheet, MAX4551CEE+ pinout, MAX4551CEE+ application, or MAX4551CEE+ equivalent, key selection criteria include ESD robustness, rail-to-rail analog handling, channel matching (≤4Ω), low leakage across temperature, and compatibility with TTL/CMOS logic under ±5V or +5V supply conditions.
Technical Context
The MAX4551CEE+ implements four independent CMOS SPST switches with internal N- and P-channel MOSFETs paralleled per channel to enable bidirectional rail-to-rail signal conduction. Its logic-level translators convert TTL/CMOS inputs into full-rail gate drive signals referenced to V+ and V−, ensuring consistent switching performance across supply voltages.
ESD protection relies on integrated bidirectional SCRs between NC/NO pins and GND-triggering in <5ns during ±15kV strikes-plus series-limited diode clamps to V+/V− for non-ESD overvoltage events. Holding current is 110mA (positive) / 95mA (negative) at +25°C, dropping to 70mA / 65mA at +85°C, requiring external current limiting on connected sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RON) | 100Ω max - ensures minimal signal attenuation and voltage drop in low-current analog paths |
| On-resistance flatness | 8Ω max over signal range - maintains linearity and THD <0.01% in audio and data acquisition |
| Channel matching (∆RON) | 4Ω max - enables precise gain-matching in multi-channel instrumentation front-ends |
| COM off-leakage current | 1nA at +25°C - preserves high-impedance node integrity in sensor interfaces and sample-hold circuits |
| ESD protection | ±15kV per IEC 1000-4-2 on NC/NO pins - eliminates need for external TVS diodes in portable medical or field-test gear |
| Supply range | +2.7V to +12V single or ±2V to ±6V dual - supports operation from Li-ion batteries (3.0–4.2V) up to industrial 12V rails |
| Logic thresholds | VIN_H = 2.4V, VIN_L = 0.8V at +5V supply - guarantees reliable interfacing with standard 5V TTL and CMOS controllers |
Pinout & Package
MAX4551CEE+ is housed in a 16-pin QSOP (Quarter-Size Outline Package) with 0.65mm lead pitch and exposed pad thermal design. The package meets JEDEC MO-137AA standards and is RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Digital control inputs; active-low logic selects NC closure (logic '0' = ON for MAX4551) |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals; bidirectional signal path endpoints with rail-to-rail voltage support |
| 3, 6, 11, 14 | NC1–NC4 | Normally closed analog terminals; shorted to corresponding COM when IN = 0 |
| 4 | V− | Negative supply input; connect to GND for single-supply operation; sets lower analog voltage limit |
| 5 | GND | Digital ground reference; SCR ESD return path; must be low-impedance plane for latch-up immunity |
| 12 | N.C. | No internal connection; leave unconnected; no routing or thermal tie required |
| 13 | V+ | Positive supply input; powers logic and analog switches; internally tied to substrate |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports signals from V− to V+ without clipping-enables full dynamic range use in ±5V or +3.3V data acquisition systems |
| ±15kV IEC 1000-4-2 ESD protection | Integrated SCRs on NC/NO pins eliminate external protection components and reduce BOM cost in handheld test instruments |
| Low power consumption | <1µW quiescent power - extends battery life in portable multimeters and sensor nodes operating >10 years on coin cells |
| Pin-compatible replacement | Direct drop-in for industry-standard DG211 - simplifies legacy system upgrades without PCB redesign |
| TTL/CMOS logic compatibility | Guaranteed 0.8V/2.4V thresholds at +5V supply - ensures interoperability with microcontrollers, FPGAs, and ASICs without level-shifting |
Applications
| Battery-Operated Test Equipment | Avionics Signal Conditioning |
|---|---|
Use Scenario: Portable handheld multimeter with auto-ranging analog front-end switching between voltage, current, and resistance measurement paths. IC Role / Device Role / Timing Role: Quad SPST NC switch routes sensor signals to precision ADC inputs while maintaining isolation between unused channels. Use Value: 1nA off-leakage prevents measurement drift; ±15kV ESD withstand protects against operator-induced discharges during field use. | Use Scenario: Flight control surface position monitoring system requiring fault-tolerant analog signal routing from redundant LVDT sensors. IC Role / Device Role / Timing Role: Isolates primary and backup sensor outputs using NC configuration; enables automatic failover via controller-driven IN logic. Use Value: 4Ω channel matching ensures identical gain across redundant paths; rail-to-rail operation accommodates ±10V LVDT outputs. |
| Audio Signal Routing | Data Acquisition Front-End |
Use Scenario: Professional audio mixer with selectable input source routing (mic, line, digital-to-analog output) to analog processing stages. IC Role / Device Role / Timing Role: Low-distortion analog switch matrix selecting between multiple audio sources before preamplification and filtering. Use Value: 8Ω on-resistance flatness minimizes harmonic distortion (<0.005% THD); 10pF COM on-capacitance preserves high-frequency response to 20kHz. | Use Scenario: Industrial PLC analog input module acquiring 4–20mA current loop signals with cold-junction compensation and thermocouple linearization. IC Role / Device Role / Timing Role: Multiplexes multiple sensor inputs to a shared sigma-delta ADC while maintaining channel-to-channel isolation. Use Value: −90dB off-isolation suppresses crosstalk between adjacent 4–20mA channels; 120ns typical turn-on time supports 10ksps sampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4552CEE+ | Four normally open (NO) configuration vs. MAX4551CEE+'s NC topology; identical electrical specs and pinout | Suitable where default-open signal path is required (e.g., safety-critical disconnect on power-up) | Select MAX4552CEE+ only when default-open behavior is mandatory; otherwise MAX4551CEE+ provides preferred default-closed path for fail-safe sensing |
| ADG1411BRUZ | Higher on-resistance (1.8Ω typ), wider supply range (±15V), but no integrated ±15kV ESD protection on switch terminals | Used in high-voltage industrial automation where ESD risk is low but signal swing exceeds ±6V | Choose ADG1411BRUZ only if ±15V operation is required and external ESD protection can be added; MAX4551CEE+ offers superior ESD integration for portable designs |
Compared with MAX4552CEE+, the MAX4551CEE+ provides fail-safe closed-path behavior ideal for sensor monitoring; versus ADG1411BRUZ, it delivers certified ±15kV ESD robustness without layout overhead, making it optimal for compact, battery-powered test and avionics systems.
Availability
MAX4551CEE+ is available at Aetrix Electronics and suitable for battery-operated equipment, avionics signal conditioning, and data acquisition front-ends requiring stable component supply, long-term lifecycle assurance, and guaranteed ESD performance.
Supply support for MAX4551CEE+ 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX4551/MAX4552/MAX4553 family was engineered for rugged, low-power analog signal routing in portable and safety-critical systems-emphasizing ESD survivability, rail-to-rail fidelity, and seamless TTL/CMOS interfacing without external support circuitry.
FAQ
What is the maximum supply voltage rating for MAX4551CEE+?
The MAX4551CEE+ has an absolute maximum V+ to V− differential voltage of 13.0V. When operated from dual supplies, the sum of |V+| + |V−| must not exceed this limit-e.g., ±6V supplies (12V total) are acceptable, but ±6.6V would violate the rating. For single-supply use, V− must be tied to GND and V+ may range from +2.7V to +12V. Exceeding 13.0V risks permanent damage.
Does MAX4551CEE+ support rail-to-rail analog signals with single +3.3V supply?
Yes, MAX4551CEE+ fully supports rail-to-rail analog signals from 0V to +3.3V when V− is connected to GND and V+ = +3.3V. Electrical characteristics-including 500Ω max on-resistance, 200pC max charge injection, and 1.1V/0.5V logic thresholds-are specified for +2.7V to +3.6V operation. Signal integrity is preserved across the full 0V–3.3V range without clipping or distortion.
How does the ESD protection in MAX4551CEE+ differ from standard diode clamping?
MAX4551CEE+ uses integrated bidirectional SCRs between NC/NO pins and GND-triggering in <5ns during ±15kV ESD events-to shunt surge current directly to ground. Unlike passive diode clamps to V+/V−, this avoids injecting large transient currents into shared supply rails, preventing voltage spikes that could disrupt other ICs. Series resistors limit auxiliary diode clamp current to supplies, enhancing system-level reliability.
Can MAX4551CEE+ be used in a +5V-only system with TTL logic inputs?
Yes. MAX4551CEE+ guarantees TTL/CMOS-compatible logic thresholds (VIN_H = 2.4V, VIN_L = 0.8V) when powered from a +5V single supply (V− = GND). Input current remains ≤1µA across temperature, allowing direct interface with 74HC, 74LS, and microcontroller GPIOs without pull-ups or level shifters-simplifying design in industrial control panels and test fixtures.
What is the thermal performance of MAX4551CEE+ in QSOP package?
The MAX4551CEE+ in 16-pin QSOP has a thermal resistance θJA of 9.52°C/W. At maximum ambient temperature (+70°C) and 762mW continuous power dissipation, junction temperature reaches ~140°C-within safe SOA limits. For extended-life operation in sealed enclosures, derating to 500mW keeps TJ below 110°C. The exposed pad variant (not applicable to CEE+) improves θJA by ~15%.
MAX4551CEE+ 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):
- 120Ohm
- Channel-to-Channel Matching (ΔRon):
- 1Ohm
- Voltage - Supply, Single (V+):
- 2V ~ 12V
- Voltage - Supply, Dual (V±):
- ±2V ~ 6V
- Switch Time (Ton, Toff) (Max):
- 110ns, 90ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 3.5pF, 3pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -90dB @ 100kHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QSOP
MAX4551CEE+ FAQ
1.How can I place an order for MAX4551CEE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4551CEE+ 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 MAX4551CEE+ reliable?
The price and inventory of MAX4551CEE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4551CEE+ is usually 5 days.
3.What payment methods are accepted for MAX4551CEE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4551CEE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4551CEE+?
MAX4551CEE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4551CEE+ 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 MAX4551CEE+?
For technical support, including MAX4551CEE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4551CEE+ requirements.
6.How does Aetrix verify that MAX4551CEE+ is sourced from the original manufacturer or authorized distributors?
All MAX4551CEE+ 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 MAX4551CEE+ meets industry standards.
7.What is the process for return or replacement of MAX4551CEE+?
All MAX4551CEE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4551CEE+, 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 MAX4551CEE+ part is unused and in its original packaging.
Return procedure for MAX4551CEE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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