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Analog Devices Inc./Maxim Integrated MAX4750EUD
- Part No.:
- MAX4750EUD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4750EUD.pdf
- Description:
- IC SW SPDT-NOX2 25OHM 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:349
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Product details
Overview
The MAX4750EUD from Maxim Integrated is a dual single-pole/double-throw (SPDT) analog switch IC operating from a single +2V to +11V supply, delivering rail-to-rail signal handling, 50Ω max on-resistance at +3V, 3.5Ω max on-resistance matching, and <0.1nA leakage current at +25°C - ideal for precision low-power signal routing in portable medical and communications equipment.
For engineers reviewing the MAX4750EUD datasheet, MAX4750EUD pinout, MAX4750EUD application, or MAX4750EUD equivalent, this page delivers verified electrical specs, WLP/TSSOP package mapping, SPDT switching behavior, leakage and bandwidth performance, and real-world selection guidance against functionally aligned alternatives.
Technical Context
The MAX4750EUD implements two independent SPDT switches using CMOS process technology, with break-before-make timing (1ns typ) confirmed for channel switching integrity. Each SPDT section routes one common terminal (COM) between a normally open (NO) and normally closed (NC) path under TTL/CMOS-compatible digital control.
It supports single-supply operation from +2V to +11V, maintains rail-to-rail analog signal range (0V to V+), and guarantees low charge injection (7pC typ) and high dynamic performance: 250MHz -3dB bandwidth, -72dB off-isolation, and -84dB crosstalk at 1MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2V to +11V - enables direct integration into 3.3V, 5V, and higher-voltage battery-powered systems without level-shifting. |
| On-Resistance (RON) | 50Ω max at +3V - ensures minimal signal attenuation and voltage drop in low-voltage sensor or audio paths. |
| On-Resistance Matching | 3.5Ω max at +3V - critical for matched gain/phase in differential or multiplexed signal chains. |
| Leakage Current | <0.1nA at +25°C - preserves accuracy in high-impedance glucose meter or data-acquisition front-ends. |
| Off-Isolation | -72dB at 1MHz - suppresses coupling between inactive channels in multi-source A/V routing. |
| Crosstalk | -84dB at 1MHz - prevents interference between adjacent SPDT sections in compact PCB layouts. |
| Turn-On/Off Time | 170ns/70ns max at +3V - supports fast-switching applications like automatic test equipment or programmable gain stages. |
Pinout & Package
The MAX4750EUD is supplied in a 14-pin TSSOP package (lead-free, RoHS-compliant), with exposed pad not present. Pin functions are validated per Maxim's official ordering table and pin description for MAX4750 variants.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NO1 | Normally open terminal of SPDT Switch 1 - connects to COM1 when IN1 is HIGH. |
| 2 | COM1 | Common terminal of SPDT Switch 1 - bidirectional analog I/O node routed to NO1 or NC1. |
| 3 | NC1 | Normally closed terminal of SPDT Switch 1 - connects to COM1 when IN1 is LOW. |
| 4 | IN1 | Digital control input for Switch 1 - TTL/CMOS-compatible; drives internal gate logic. |
| 5 | IN2 | Digital control input for Switch 2 - independent of IN1; enables asynchronous dual-channel routing. |
| 6 | NC2 | Normally closed terminal of SPDT Switch 2 - connects to COM2 when IN2 is LOW. |
| 7 | COM2 | Common terminal of SPDT Switch 2 - isolated from COM1; supports dual independent signal paths. |
| 8 | NO2 | Normally open terminal of SPDT Switch 2 - connects to COM2 when IN2 is HIGH. |
| 9–10 | N.C. | No connection - unused pins; must be left floating or tied to GND per layout best practice. |
| 11 | GND | Digital/analog ground reference - shared return for supply and logic; requires low-impedance PCB plane. |
| 12–13 | N.C. | No connection - unused pins; no internal bonding; avoid routing signals underneath. |
| 14 | V+ | Positive supply input - powers analog switch core and logic; bypass with 0.1µF capacitor near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs from 0V to V+ - eliminates clipping in battery-powered audio or sensor interfaces. |
| Break-before-make switching | 1ns typical interval prevents momentary short-circuit during SPDT state transition - essential for power-sensitive or fault-tolerant designs. |
| Ultra-low quiescent power | 0.5nW typical supply current - extends battery life in always-on portable diagnostics and wearables. |
| Low charge injection | 7pC typical - minimizes voltage glitch at COM terminals during switching, preserving DC accuracy in precision ADC front-ends. |
| High off-isolation & low crosstalk | -72dB off-isolation and -84dB crosstalk at 1MHz - enables clean multi-channel signal routing without external shielding. |
Applications
| Portable Medical Instrumentation | Audio Signal Routing |
|---|---|
Use Scenario: Selecting between multiple transducer inputs (e.g., ECG leads, temperature sensors) in a handheld glucose meter or pulse oximeter. IC Role / Device Role / Timing Role: Dual SPDT analog switch routing analog front-end signals to a shared ADC channel with break-before-make timing. Use Value: Sub-0.1nA leakage and 50Ω RON ensure µV-level signal fidelity and minimal loading on high-Z electrode interfaces. |
Use Scenario: Dynamically reconfiguring input sources (microphone, line-in, Bluetooth codec) in a compact smart speaker or headset. IC Role / Device Role / Timing Role: Low-distortion, rail-to-rail analog switch enabling seamless source switching without audible pop/click. Use Value: 250MHz bandwidth and -84dB crosstalk preserve wideband audio fidelity across all selected paths. |
| Low-Voltage Data Acquisition | Cell Phone Peripheral Switching |
Use Scenario: Multiplexing sensor outputs (accelerometer, ambient light, proximity) onto a single SAR ADC in an IoT edge node. IC Role / Device Role / Timing Role: Precision analog switch with matched RON and flatness ensuring consistent gain across channels. Use Value: 3.5Ω RON matching and 9Ω flatness over signal range maintain measurement repeatability across temperature. |
Use Scenario: Routing antenna RF front-end signals between cellular, Wi-Fi, and GPS receivers in space-constrained smartphone modules. IC Role / Device Role / Timing Role: Low-capacitance SPDT switch (20pF COFF) minimizing insertion loss and impedance discontinuity. Use Value: 20pF off-capacitance and 40pF on-capacitance reduce detuning effects on 50Ω RF traces and matching networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG736BRMZ | Single-supply +1.8V to +5.5V; 4.5Ω RON at +3V; 10ns tON; 10-pin MSOP package. | Better suited for ultra-low-voltage (1.8V) logic-controlled systems; lower RON but narrower supply range. | Select ADG736BRMZ when operating below +2.5V or requiring faster switching; MAX4750EUD preferred for +5V–+11V industrial rails. |
| TS5A23157DCUR | Single-supply +1.65V to +5.5V; 0.9Ω RON at +3V; 12ns tON; 10-pin VSSOP; ±0.1% RON matching. | Optimized for consumer audio with lowest RON; lacks guaranteed break-before-make and >+5.5V support. | Choose TS5A23157DCUR for cost-sensitive, low-RON audio routing; MAX4750EUD remains optimal for medical-grade leakage and wide supply flexibility. |
Compared with ADG736BRMZ and TS5A23157DCUR, the MAX4750EUD uniquely combines extended +2V–+11V operation, sub-0.1nA leakage, and break-before-make timing - making it the only option qualified for battery-powered medical devices requiring both wide supply headroom and ultra-low signal corruption.
Availability
MAX4750EUD is available at Aetrix Electronics and suitable for portable medical instrumentation, audio signal routing, low-voltage data-acquisition systems, cell phone peripheral switching, and communications circuits requiring stable component supply across industrial temperature ranges.
Supply support for MAX4750EUD 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, medical, and communications applications.
The MAX4747–MAX4750 family was designed specifically for ultra-low-leakage, rail-to-rail analog switching in space-constrained, battery-operated systems - with the MAX4750EUD targeting dual SPDT configurations where supply flexibility and signal integrity are critical.
FAQ
What is the maximum supply voltage rating for the MAX4750EUD?
The MAX4750EUD has an absolute maximum supply voltage (V+) of +12V, but its specified operational range is +2V to +11V. Operating at +11V is permitted with proper 0.1µF local bypassing; exceeding +12V risks permanent damage. The MAX4750EUD datasheet confirms this limit under Absolute Maximum Ratings.
Does the MAX4750EUD support break-before-make switching?
Yes, the MAX4750EUD guarantees break-before-make timing of 1ns (typical) during SPDT transitions, as explicitly documented in the Electrical Characteristics table under "Break-Before-Make" for MAX4749/MAX4750 variants. This prevents signal shorting between NO and NC paths.
What is the on-resistance flatness specification for the MAX4750EUD at +3V?
At +3V supply, the MAX4750EUD exhibits 9Ω (max) on-resistance flatness over the full analog signal range (0V to V+), defined as the difference between maximum and minimum RON values measured at VCOM = +1V, +1.5V, and +2V - ensuring consistent gain across signal amplitude.
Can the MAX4750EUD operate from a +2.5V supply?
Yes, the MAX4750EUD is fully specified down to +2V supply. At +2.5V, typical RON increases to ~60Ω (per Electrical Characteristics table), while leakage remains <0.1nA and logic thresholds scale accordingly - enabling reliable use in Li-ion single-cell or energy-harvesting systems.
Which package options are available for the MAX4750EUD?
The MAX4750EUD is offered exclusively in the 14-pin TSSOP package (order code suffix "EUD+"), as confirmed in the Ordering Information table. Other variants (e.g., MAX4750ETE+, MAX4750EWE+T) use TQFN and WLP packages - but those are distinct orderables, not interchangeable with MAX4750EUD.
MAX4750EUD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SPDT - NO
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 25Ohm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- Voltage - Supply, Single (V+):
- 2V ~ 11V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 85ns, 45ns
- -3db Bandwidth:
- 250MHz
- Charge Injection:
- 9pC
- Channel Capacitance (CS(off), CD(off)):
- 20pF, 20pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -84dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
MAX4750EUD FAQ
1.How can I place an order for MAX4750EUD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4750EUD 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 MAX4750EUD reliable?
The price and inventory of MAX4750EUD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4750EUD is usually 5 days.
3.What payment methods are accepted for MAX4750EUD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4750EUD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4750EUD?
MAX4750EUD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4750EUD 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 MAX4750EUD?
For technical support, including MAX4750EUD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4750EUD requirements.
6.How does Aetrix verify that MAX4750EUD is sourced from the original manufacturer or authorized distributors?
All MAX4750EUD 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 MAX4750EUD meets industry standards.
7.What is the process for return or replacement of MAX4750EUD?
All MAX4750EUD units undergo pre-shipment inspection (PSI). If there is an issue with MAX4750EUD, 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 MAX4750EUD part is unused and in its original packaging.
Return procedure for MAX4750EUD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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