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Analog Devices Inc./Maxim Integrated MAX4751EUD
- Part No.:
- MAX4751EUD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4751EUD.pdf
- Description:
- IC SW SPST-NOX4 900MOHM 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:69,331
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Product details
Overview
MAX4751EUD from Maxim Integrated is a low-voltage, single-supply quad SPST analog switch with 0.9Ω max on-resistance at +3V, 30ns turn-on time, and 1.8V CMOS logic compatibility-designed for rail-to-rail signal routing in battery-powered audio/video systems.
For engineers reviewing the MAX4751EUD datasheet, MAX4751EUD pinout, MAX4751EUD application, or MAX4751EUD equivalent, key selection criteria include on-resistance flatness (0.1Ω max), RON matching (0.12Ω max), 100mA continuous current handling, and TSSOP-14 package compatibility with space-constrained portable designs.
Technical Context
The MAX4751EUD implements four independent normally open (NO) SPST switches using CMOS process technology, enabling bidirectional analog signal routing from GND to V+ without polarity constraints. Its architecture supports rail-to-rail input signals and maintains sub-1Ω on-resistance across the full +1.6V to +3.6V supply range.
Switch control uses 1.8V-compatible digital inputs referenced to V+, with guaranteed VIH = 1.4V and VIL = 0.5V over temperature. The device draws less than 1µA quiescent supply current and exhibits 21pC typical charge injection-critical for precision data-acquisition front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 0.9Ω max at +3V - enables <10mV drop at 100mA, preserving signal integrity in low-voltage sensor interfaces |
| On-Resistance Flatness | 0.1Ω max at +3V - ensures consistent gain/attenuation across analog signal range (0–3V) |
| RON Matching | 0.12Ω max at +3V - guarantees ≤0.12Ω difference between any two channels, critical for multi-channel mux accuracy |
| Turn-On/Off Time | tON = 30ns, tOFF = 25ns - supports >10MHz switching in high-speed data routing applications |
| Supply Range | +1.6V to +3.6V - operates directly from single Li-ion cell or regulated 1.8V/2.5V/3.3V rails without level-shifting |
| Logic Compatibility | 1.8V CMOS inputs at +3V supply - interfaces directly with modern low-voltage microcontrollers and FPGAs |
| Continuous Current | ±100mA per channel - handles audio line-level, sensor, and low-power peripheral switching without external buffering |
Pinout & Package
MAX4751EUD is housed in a 14-pin TSSOP package (3.0mm × 4.4mm, 0.65mm pitch) with exposed pad not present-compatible with standard reflow profiles and IPC-7351 land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 8, 11 | NO1–NO4 | Normally open switch terminals - connect only when corresponding INx is HIGH; isolated from COM when OFF |
| 2, 4, 9, 10 | COM1–COM4 | Common analog path terminals - serve as bidirectional signal ports shared with NOx/NCx |
| 5, 6, 12, 13 | IN1–IN4 | Digital control inputs - TTL/CMOS compatible; drive NOx ON when HIGH (VIL ≤ 0.5V, VIH ≥ 1.4V) |
| 7 | GND | Analog/digital ground reference - must be connected to system ground plane for leakage and noise control |
| 14 | V+ | Positive supply input - accepts +1.6V to +3.6V; requires 0.1µF bypass capacitor to GND near pin |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports 0V to V+ input range - eliminates clipping in audio, sensor, and battery-monitoring paths |
| Ultra-low quiescent power | <1µW at +3V - extends runtime in always-on IoT nodes and wearable devices |
| Low charge injection (21pC) | Minimizes voltage glitch during switching - preserves DC accuracy in precision ADC front-ends |
| High off-isolation (-65dB @ 1MHz) | Reduces crosstalk between active and inactive channels - essential for multi-signal multiplexing |
| 100mA continuous current rating | Eliminates need for external current-boosting circuitry in audio line drivers and sensor excitation |
Applications
| Audio Signal Routing | Battery-Powered Data Acquisition |
|---|---|
Use Scenario: Switching stereo audio paths between multiple sources (microphone, line-in, Bluetooth codec) in a portable speaker system. IC Role / Device Role: Quad SPST analog switch providing low-distortion, low-noise signal path selection with minimal insertion loss. Use Value: 0.031% THD and 0.9Ω RON preserve audio fidelity; 30ns switching enables seamless source transitions without audible pop/click. |
Use Scenario: Multiplexing sensor outputs (thermistor, accelerometer, ambient light) into a single ADC channel in a wireless sensor node. IC Role / Device Role: Low-leakage analog multiplexer enabling precise DC-coupled measurements across multiple sensors. Use Value: ±5nA off-leakage and 0.1Ω RON flatness ensure <0.01% measurement error; 1.8V logic compatibility reduces MCU I/O voltage translation overhead. |
| Cellular Phone Peripherals | PCMCIA Card Interface |
Use Scenario: Routing SIM card interface signals (CLK, I/O, RST) and antenna switch control lines in dual-SIM smartphones. IC Role / Device Role: Low-capacitance signal router isolating SIM slots and managing RF path switching under software control. Use Value: 31pF NO_ off-capacitance and -80dB crosstalk prevent signal coupling between SIM lanes; 100mA rating handles SIM reset pulses. |
Use Scenario: Isolating host controller signals (OE#, WE#, CD1#, CD2#) from PCMCIA card edge connectors during hot-plug events. IC Role / Device Role: Fault-tolerant signal gate protecting host logic from transient voltages and ESD during card insertion/removal. Use Value: Absolute maximum ratings of -0.3V to +4V on all pins and internal diode clamping enable robust hot-swap operation without external protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1414BRUZ | Higher supply range (+5V to +16.5V), 1.3Ω RON at +5V, 16-TSSOP package | Designed for industrial +5V systems; incompatible with 1.8V logic without level shifters | Select when operating above +3.6V or requiring higher breakdown voltage; not suitable for direct +3V battery replacement |
| TS5A4624DCKR | Lower RON (0.55Ω at +3V), but limited to +3.3V max supply and 50mA current rating | Optimized for ultra-low-RON consumer audio; insufficient for 100mA sensor excitation or SIM reset loads | Prefer for cost-sensitive audio routing where current demand ≤50mA; verify thermal limits under sustained load |
Compared with ADG1414BRUZ and TS5A4624DCKR, the MAX4751EUD uniquely balances 0.9Ω RON, 100mA current capability, and 1.8V logic compatibility in a compact 14-TSSOP-making it optimal for next-generation portable electronics requiring both performance and supply flexibility.
Availability
MAX4751EUD is available at Aetrix Electronics and suitable for battery-powered systems, audio/video signal routing, and low-voltage data-acquisition systems requiring stable component supply and long-term manufacturability.
Supply support for MAX4751EUD 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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX4751EUD belongs to Maxim's low-voltage analog switch product line, engineered specifically for portable and battery-operated equipment demanding ultra-low power, rail-to-rail signal handling, and small-footprint integration.
FAQ
What is the maximum supply voltage for the MAX4751EUD?
The MAX4751EUD supports a single-supply range of +1.6V to +3.6V. Exceeding +3.6V on V+ violates absolute maximum ratings and risks permanent damage. Operation at +3.6V is fully characterized, with RON = 0.9Ω max and tON = 30ns confirmed across the -40°C to +85°C temperature range. The MAX4751EUD must never be operated above +4V on any pin.
Does the MAX4751EUD support bidirectional signal flow?
Yes, the MAX4751EUD supports fully bidirectional analog signal routing. Its CMOS-based SPST switches allow current and voltage to pass equally well from COM to NO or NO to COM, with identical RON, leakage, and capacitance specifications in either direction. This enables flexible use in both source-selection and load-switching topologies without signal-path restrictions.
Can the MAX4751EUD be used with a 1.8V supply?
Yes-the MAX4751EUD operates down to +1.6V and is fully specified at +1.8V. At +1.8V, RON increases to 2.5Ω max, tON/tOFF extend to 35ns/30ns, and VIH/VIL shift to 1.0V/0.4V. All functionality remains intact, making it suitable for systems powered by single LiFePO₄ cells or regulated 1.8V rails, though RON-related voltage drop must be recalculated for current-critical paths.
What is the thermal performance of the MAX4751EUD in TSSOP package?
The MAX4751EUD in 14-pin TSSOP has a thermal resistance θJA of 110°C/W. At maximum rated 100mA per channel and 0.9Ω RON, worst-case power dissipation is 900µW per switch (I²R), totaling <3.6mW for all four channels-resulting in negligible junction temperature rise (<0.4°C) in still air. No heatsinking is required for normal operation.
Is the MAX4751EUD RoHS-compliant and lead-free?
Yes, the MAX4751EUD+T ordering variant is RoHS-compliant and lead-free, as indicated by the "+" suffix in the package code. It meets EU RoHS Directive 2011/65/EU and JEDEC J-STD-609 standards. The device uses matte tin lead finish and is qualified for standard Pb-free reflow profiles (peak 260°C).
MAX4751EUD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 900mOhm
- Channel-to-Channel Matching (ΔRon):
- 30mOhm
- Voltage - Supply, Single (V+):
- 1.6V ~ 3.6V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 30ns, 25ns
- -3db Bandwidth:
- -
- Charge Injection:
- 21pC
- Channel Capacitance (CS(off), CD(off)):
- 31pF, 30pF
- Current - Leakage (IS(off)) (Max):
- 2.5nA
- Crosstalk:
- -70dB @ 10MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
MAX4751EUD FAQ
1.How can I place an order for MAX4751EUD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4751EUD 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 MAX4751EUD reliable?
The price and inventory of MAX4751EUD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4751EUD is usually 5 days.
3.What payment methods are accepted for MAX4751EUD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4751EUD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4751EUD?
MAX4751EUD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4751EUD 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 MAX4751EUD?
For technical support, including MAX4751EUD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4751EUD requirements.
6.How does Aetrix verify that MAX4751EUD is sourced from the original manufacturer or authorized distributors?
All MAX4751EUD 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 MAX4751EUD meets industry standards.
7.What is the process for return or replacement of MAX4751EUD?
All MAX4751EUD units undergo pre-shipment inspection (PSI). If there is an issue with MAX4751EUD, 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 MAX4751EUD part is unused and in its original packaging.
Return procedure for MAX4751EUD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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