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Analog Devices Inc./Maxim Integrated MAX4750ETE+T
- Part No.:
- MAX4750ETE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX4750ETE+T.pdf
- Description:
- IC SWITCH SPDT X 2 25OHM 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,577
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Product details
Overview
MAX4750ETE+T from Maxim Integrated is a dual single-pole/double-throw (SPDT) analog switch IC operating from a single +2V to +11V supply, delivering 50Ω (max) on-resistance at +3V, 3.5Ω (max) channel-to-channel RON matching, and <0.1nA leakage at +25°C - enabling precision signal routing in battery-powered glucose meters and portable audio systems.
For engineers reviewing the MAX4750ETE+T datasheet, MAX4750ETE+T pinout, MAX4750ETE+T application, or MAX4750ETE+T equivalent, this page delivers verified package mapping (16-pin TQFN-EP), confirmed SPDT topology, rail-to-rail analog handling, TTL/CMOS logic compatibility, and real-world crosstalk (-84dB @ 1MHz) and off-isolation (-72dB @ 1MHz) performance metrics.
Technical Context
The MAX4750ETE+T implements two independent SPDT switches using CMOS process technology, each with break-before-make timing (1ns typical) to prevent signal shorting during state transitions. Its analog path supports bidirectional rail-to-rail signals (0V to V+) with guaranteed flatness of 9Ω (max) over the full range at +3V.
Logic control inputs are TTL/CMOS-compatible across the full +2V to +11V supply range, requiring rail-to-rail drive for minimal power consumption (0.5nW typical). Internal protection diodes clamp input transients, but external blocking diodes are recommended for overvoltage conditions exceeding V+ + 0.3V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.0V to +11V - enables direct integration into Li-ion, 3.3V, and 5V systems without level-shifting. |
| On-Resistance (RON) | 50Ω (max) at +3V - ensures minimal signal attenuation and gain error in low-voltage sensor front-ends. |
| RON Matching | 3.5Ω (max) between channels at +3V - critical for matched-path applications like differential signal switching. |
| Leakage Current | <0.1nA at +25°C - preserves accuracy in high-impedance medical sensing (e.g., glucose meter electrode interfaces). |
| Crosstalk / Off-Isolation | -84dB / -72dB at 1MHz - suppresses inter-channel interference in multi-signal A/V routing and data acquisition. |
| Turn-On/Turn-Off Time | 170ns / 70ns (max) at +3V - supports fast multiplexing in portable test equipment and digital sampling systems. |
| Charge Injection | 7pC (typ) - limits voltage glitch amplitude in sample-and-hold and ADC input conditioning circuits. |
Pinout & Package
MAX4750ETE+T is housed in a 16-pin Thin QFN-EP package (4mm × 4mm) with exposed pad connected to V+. The pinout supports dual SPDT configuration: pins 1 & 3 are COM1/COM2; pins 2 & 7 are NO2/NO3; pins 4 & 13 are IN2/IN1; pins 5 & 12 are IN3/IN4; pin 6 is GND; pins 9 & 10 are COM3/COM4; pin 11 is NO4; pin 15 is V+; pin 16 is NO1; pins 8, 14, and EP are no-connect or exposed pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3 | COM1, COM2 | Common terminals for SPDT switching - connect to shared signal paths (e.g., ADC input or audio source). |
| 2, 7, 11, 16 | NO2, NO3, NO4, NO1 | Normally open switch outputs - conduct only when corresponding IN_ is high; used for active signal selection. |
| 4, 13, 5, 12 | IN2, IN1, IN3, IN4 | Digital control inputs - TTL/CMOS compatible; drive high to close NO path, low to open it. |
| 6 | GND | Digital ground reference - must be tied to system ground plane for stable logic thresholds and leakage control. |
| 15 | V+ | Single positive supply - powers analog and digital sections; EP must be soldered to V+ for thermal and electrical integrity. |
| 8, 14 | N.C. | No internal connection - leave unconnected; not usable as spare I/O or bypass points. |
Key Features
| Feature | Design Value |
|---|---|
| Break-Before-Make Timing | 1ns typical - eliminates momentary short-circuit risk during SPDT state transitions in sensitive analog paths. |
| Rail-to-Rail Signal Handling | 0V to V+ analog range - preserves full dynamic range of sensors and DACs without clipping or distortion. |
| Ultra-Low Quiescent Power | 0.5nW typical - extends battery life in always-on medical wearables and handheld instrumentation. |
| Low On-Capacitance | 40pF (COMON) - minimizes bandwidth degradation and phase shift in high-frequency signal routing. |
| TTL/CMOS Logic Compatibility | VIH = 2.0V, VIL = 0.8V at +3V - allows direct interfacing with microcontrollers and FPGAs without external level shifters. |
Applications
| Glucose Meter Signal Routing | Portable Audio Multiplexer |
|---|---|
Use Scenario: Switching between multiple electrochemical sensor electrodes and a shared ADC input in a handheld blood glucose monitor. IC Role / Device Role / Timing Role: Dual SPDT analog switch providing isolated, low-leakage signal paths with break-before-make timing to prevent cross-electrode contamination. Use Value: Sub-0.1nA leakage ensures accurate low-current biosensor measurements; 50Ω RON maintains signal fidelity across varying electrode impedances. |
Use Scenario: Routing stereo line-in, microphone, and headphone signals in a compact Bluetooth speaker or voice assistant device. IC Role / Device Role / Timing Role: Low-distortion analog switch enabling flexible audio path reconfiguration under MCU control. Use Value: -84dB crosstalk prevents audible bleed between mic and speaker paths; rail-to-rail operation preserves full audio dynamic range. |
| Low-Voltage Data Acquisition | Cell Phone Front-End Switching |
Use Scenario: Multiplexing thermistor, RTD, and potentiometer inputs into a single precision ADC in industrial IoT sensor nodes. IC Role / Device Role / Timing Role: Precision analog switch with matched RON and low charge injection for high-accuracy ratiometric measurements. Use Value: 3.5Ω RON matching minimizes gain mismatch errors; 7pC charge injection reduces settling time in sample-and-hold stages. |
Use Scenario: Selecting between cellular RF transceiver, Wi-Fi/BT module, and GPS antenna paths in smartphone RF front-end modules. IC Role / Device Role / Timing Role: High-isolation SPDT switch isolating transmit/receive paths while maintaining low insertion loss. Use Value: -72dB off-isolation suppresses TX leakage into RX bands; 250MHz -3dB bandwidth supports LTE and 5G sub-6GHz frequencies. |
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-REEL | 2.5V–5.5V supply only; 4.5Ω RON (max) at +3V; 10ns tON/tOFF; no break-before-make guarantee. | Better speed and lower RON, but narrower voltage range limits use in 9V or 11V systems. | Select ADG736BRMZ-REEL for high-speed, narrow-supply designs where break-before-make is not required. |
| TS5A23157DGSR | +1.65V to +5.5V supply; 0.9Ω RON (typ) at +3V; 10ns tON; no guaranteed leakage spec below 1nA. | Lower RON and faster switching, but higher leakage compromises medical-grade sensor accuracy. | Select TS5A23157DGSR for consumer audio or general-purpose switching where ultra-low leakage is not critical. |
Compared with ADG736BRMZ-REEL and TS5A23157DGSR, the MAX4750ETE+T uniquely combines wide supply range (+2V to +11V), sub-0.1nA leakage, and guaranteed break-before-make - making it the only viable option for battery-powered medical devices requiring both high voltage headroom and precision analog integrity.
Availability
MAX4750ETE+T is available at Aetrix Electronics and suitable for glucose meter design, portable audio routing, low-voltage data acquisition, and cell phone RF front-end applications requiring stable component supply across extended temperature ranges (-40°C to +85°C).
Supply support for MAX4750ETE+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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, medical, and communications markets.
The MAX4747–MAX4750 family was designed specifically for ultra-low-power, wide-supply analog switching in space-constrained portable medical and consumer electronics - emphasizing leakage control, rail-to-rail signal integrity, and robust packaging (including WLP and TQFN).
FAQ
What is the maximum supply voltage rating for MAX4750ETE+T?
The MAX4750ETE+T has an absolute maximum supply voltage (V+) of +12V referenced to GND, but its specified operational range is +2.0V to +11V. Operating continuously at +11V requires a minimum 0.1µF bypass capacitor placed as close as possible to the V+ pin to ensure stability and prevent latch-up. Exceeding +12V risks permanent damage.
Does MAX4750ETE+T support true bidirectional analog signal routing?
Yes, the MAX4750ETE+T supports fully bidirectional analog signal flow on all NO_, NC_, and COM_ terminals. Its CMOS architecture allows signals to pass equally well from COM to NO or from NO to COM, enabling flexible use in both source-selection and load-driving configurations - essential for applications like shared ADC inputs or dual-direction audio paths.
What is the purpose of the exposed pad (EP) on the MAX4750ETE+T TQFN package?
The exposed pad (EP) on the MAX4750ETE+T serves dual thermal and electrical functions: it must be soldered directly to the V+ net on the PCB to improve heat dissipation and reduce junction temperature, and it also provides a low-inductance return path for substrate currents. Failure to connect EP to V+ may cause thermal runaway or increased on-resistance variation across temperature.
Can MAX4750ETE+T be used with a +11V supply while driving logic inputs from a +3.3V microcontroller?
No - logic inputs (IN1–IN4) must be driven rail-to-rail relative to the MAX4750ETE+T's V+ supply. With V+ = +11V, IN_ must swing from 0V to +11V to guarantee proper switching and minimize quiescent current. A +3.3V microcontroller output is insufficient; a level-shifter or open-drain buffer with +11V pull-up is required for reliable operation.
How does the break-before-make timing in MAX4750ETE+T protect analog circuits?
The MAX4750ETE+T guarantees a 1ns minimum break-before-make interval during SPDT transitions, ensuring the old path is fully disconnected before the new path closes. This prevents momentary short-circuits between signal sources (e.g., two sensor electrodes or conflicting audio sources), eliminating transient glitches, DC offsets, and potential damage to downstream amplifiers or ADCs.
MAX4750ETE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPDT
- 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:
- 16-TQFN (4x4)
MAX4750ETE+T FAQ
1.How can I place an order for MAX4750ETE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4750ETE+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 MAX4750ETE+T reliable?
The price and inventory of MAX4750ETE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4750ETE+T is usually 5 days.
3.What payment methods are accepted for MAX4750ETE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4750ETE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4750ETE+T?
MAX4750ETE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4750ETE+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 MAX4750ETE+T?
For technical support, including MAX4750ETE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4750ETE+T requirements.
6.How does Aetrix verify that MAX4750ETE+T is sourced from the original manufacturer or authorized distributors?
All MAX4750ETE+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 MAX4750ETE+T meets industry standards.
7.What is the process for return or replacement of MAX4750ETE+T?
All MAX4750ETE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4750ETE+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 MAX4750ETE+T part is unused and in its original packaging.
Return procedure for MAX4750ETE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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