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Analog Devices Inc./Maxim Integrated MAX4750ETE+
- Part No.:
- MAX4750ETE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX4750ETE+.pdf
- Description:
- IC SWITCH SPDT X 2 25OHM 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,460
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Product details
Overview
MAX4750ETE+ 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 matching, and <0.1nA leakage current at +25°C - enabling precision rail-to-rail signal routing in ultra-low-power portable instrumentation and audio multiplexing.
For engineers reviewing the MAX4750ETE+ datasheet, MAX4750ETE+ pinout, MAX4750ETE+ application, or MAX4750ETE+ equivalent, this page delivers verified electrical specs, TQFN-EP package layout, real-world use cases in glucose meters and communications circuits, and two validated alternative parts with documented functional and interface differences.
Technical Context
The MAX4750ETE+ implements dual SPDT topology using CMOS process technology, supporting bidirectional analog signal flow across COM/NO/NC terminals with break-before-make timing of 1ns (typ) at +3V. Its logic inputs are TTL/CMOS-compatible and require rail-to-rail drive for minimal quiescent power.
It guarantees rail-to-rail analog signal handling (0V to V+), exhibits -72dB off-isolation and -84dB crosstalk at 1MHz, and maintains 250MHz on-channel bandwidth - all while consuming only 0.5nW typical quiescent power and supporting operation from -40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.0V to +11V - enables direct integration into 2-cell 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 precision sensor front-ends. |
| On-Resistance Matching | 3.5Ω max between channels at +3V - critical for matched gain paths in differential or ratiometric measurement circuits. |
| Leakage Current | <0.1nA at TA = +25°C - preserves accuracy in high-impedance pH or glucose sensor interfaces. |
| Off-Isolation | -72dB at 1MHz - suppresses coupling between inactive signal paths in multi-channel AFEs. |
| Crosstalk | -84dB at 1MHz - prevents interference between adjacent audio or data channels in routing applications. |
| Turn-On/Off Time | 170ns / 70ns max at +3V - supports fast channel switching in time-division multiplexed data acquisition. |
Pinout & Package
MAX4750ETE+ is housed in a 16-pin Thin QFN-EP (4mm × 4mm) package with exposed pad connected to V+. Pin functions are electrically validated per Maxim's official pin description table for MAX4750.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3 | COM1, COM2 | Common analog terminals - serve as bidirectional signal ports shared between NO and NC paths in each SPDT switch. |
| 2, 4, 8, 10, 12, 14 | N.C. | No internal connection - must be left floating or tied to GND/V+ per PCB layout best practices; no electrical function. |
| 5, 13 | IN2, IN1 | Digital control inputs - TTL/CMOS-compatible; drive high to close NO path, low to close NC path per truth table. |
| 6 | GND | Digital ground reference - must be low-impedance connection to system ground plane for noise immunity. |
| 7 | NO2 | Normally open terminal of Switch 2 - connects to COM2 only when IN2 = high; isolated otherwise. |
| 9, 10 | COM3, COM4 | Not used in MAX4750 - reserved pins; electrically unconnected per MAX4750-specific pin map. |
| 11 | NO4 | Not used in MAX4750 - unconnected per MAX4750 pin configuration; not present in functional SPDT layout. |
| 15 | V+ | Positive supply - powers analog and digital sections; EP must be soldered and connected to V+ for thermal and electrical performance. |
| 16 | NO1 | Normally open terminal of Switch 1 - connects to COM1 only when IN1 = high; defines primary signal path polarity. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from GND to V+ without clipping - essential for full-scale battery-powered sensor outputs. |
| Break-before-make timing | 1ns max ensures no momentary short between NO and NC paths - prevents signal glitches during switching in audio or RF paths. |
| Ultra-low quiescent power | 0.5nW typical consumption - extends battery life in always-on medical wearables and IoT endpoints. |
| Low charge injection | 7pC typical - minimizes voltage step errors at switch output, critical for precision sample-and-hold and ADC front-ends. |
| Guaranteed on-resistance flatness | 9Ω max over full signal range at +3V - maintains consistent gain and linearity across input voltage swing. |
Applications
| Glucose Monitoring Systems | Portable Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing multiple electrochemical sensor electrodes to a single ADC in handheld glucose meters. IC Role / Device Role / Timing Role: Dual SPDT switch routes analog current signals from disposable test-strip electrodes to conditioning circuitry while isolating unused paths. Use Value: 0.1nA leakage and 50Ω RON preserve microamp-level current measurement integrity and minimize calibration drift. |
Use Scenario: Selecting between microphone inputs or headphone outputs in compact Bluetooth headsets. IC Role / Device Role / Timing Role: Bidirectional analog switch enables flexible signal path reconfiguration under MCU control without external buffers. Use Value: -84dB crosstalk and 250MHz bandwidth prevent audible artifacts and preserve wideband audio fidelity up to 20kHz. |
| Low-Voltage Data Acquisition | Cell Phone Peripheral Interface |
Use Scenario: Channel selection in 12-bit SAR ADC front-ends for industrial sensor nodes powered by coin cells. IC Role / Device Role / Timing Role: Precision analog switch provides low-RON, low-leakage connection between sensors and ADC input. Use Value: 3.5Ω RON matching ensures accurate ratiometric measurements across temperature; 0.5nW power enables >1-year battery life. |
Use Scenario: Routing auxiliary analog signals (e.g., FM antenna, stereo DAC output) in space-constrained smartphone designs. IC Role / Device Role / Timing Role: Compact TQFN-EP package (4mm × 4mm) replaces discrete solutions while maintaining signal integrity. Use Value: 40pF COM-on capacitance and rail-to-rail operation support high-fidelity RF/analog coexistence without added filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG736BRMZ-REEL | Single-supply +1.8V to +5.5V; 4.5Ω RON at +3V; 16-lead MSOP package; no exposed pad. | Better RON and lower voltage operation, but limited to ≤5.5V supply - unsuitable for +11V industrial rails. | Select ADG736BRMZ-REEL for ultra-low-voltage (<3.3V) portable designs where 50Ω RON is excessive. |
| TS5A23157DCUR | Single-supply +1.65V to +5.5V; 0.9Ω RON at +3V; 10-pin VSSOP; higher 100nA leakage at +25°C. | Lower RON ideal for audio line driving, but higher leakage limits use in high-Z medical sensing. | Choose TS5A23157DCUR when lowest possible insertion loss is required and leakage tolerance exceeds 1nA. |
Compared with MAX4750ETE+, ADG736BRMZ-REEL offers tighter RON matching and lower supply minimum but sacrifices high-voltage capability, while TS5A23157DCUR delivers superior conductivity at the cost of leakage-sensitive precision applications - making MAX4750ETE+ the optimal balance for 3–5V battery-powered instrumentation requiring robust 11V tolerance.
Availability
MAX4750ETE+ is available at Aetrix Electronics and suitable for glucose meters, portable audio devices, low-voltage data-acquisition systems, and cell phone peripheral interfaces requiring stable component supply across extended production lifecycles.
Supply support for MAX4750ETE+ 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 precision analog, mixed-signal, and power-management ICs for demanding industrial, medical, and communications applications.
The MAX4747–MAX4750 family targets ultra-low-power, high-accuracy analog signal routing in battery-operated portable equipment - emphasizing rail-to-rail operation, sub-nA leakage, and miniature WLP/TQFN packaging.
FAQ
What is the maximum supply voltage rating for MAX4750ETE+?
The MAX4750ETE+ has an absolute maximum supply voltage (V+) of +12V referenced to GND, with recommended operational limit of +11V. Exceeding +12V risks permanent damage. When operating near +11V, a 0.1µF bypass capacitor must be placed as close as possible to the V+ pin to ensure stability and noise immunity in the MAX4750ETE+ circuit.
Does MAX4750ETE+ support rail-to-rail analog signal switching?
Yes, MAX4750ETE+ fully supports rail-to-rail analog signal switching - its analog terminals (COM, NO, NC) handle signals from GND to V+ without clipping or distortion. This is confirmed in the Electrical Characteristics table under "Analog Signal Range" (0V to V+) and validated across temperature in Typical Operating Characteristics plots for MAX4750ETE+.
What is the on-resistance matching specification for MAX4750ETE+ at +3V?
At +3V supply, MAX4750ETE+ guarantees on-resistance matching (∆RON) of 3.5Ω maximum between its two SPDT channels. This value is measured per the datasheet condition: V+ = +2.7V, ICOM_ = 5mA, VNO_/VNC_ = +1.5V, and applies across the full operating temperature range (-40°C to +85°C).
Is the exposed pad (EP) on MAX4750ETE+ electrically connected?
Yes, the exposed pad (EP) on MAX4750ETE+ is electrically connected to V+ and must be soldered and tied to the V+ net on the PCB. Per Maxim's official pin description, EP serves as both thermal dissipation path and electrical connection - leaving it unconnected degrades thermal performance and may cause instability in the MAX4750ETE+ device.
What logic levels are compatible with MAX4750ETE+ inputs?
MAX4750ETE+ inputs are TTL-compatible when powered from +3V, with VIH = +2.0V min and VIL = +0.8V max. At other supplies (e.g., +5V or +11V), inputs must be driven rail-to-rail (0V to V+) to ensure reliable switching and minimize power consumption - confirmed in the Applications Information section of the MAX4750ETE+ datasheet.
MAX4750ETE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- 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+ FAQ
1.How can I place an order for MAX4750ETE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4750ETE+ 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+ reliable?
The price and inventory of MAX4750ETE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4750ETE+ is usually 5 days.
3.What payment methods are accepted for MAX4750ETE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4750ETE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4750ETE+?
MAX4750ETE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4750ETE+ 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+?
For technical support, including MAX4750ETE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4750ETE+ requirements.
6.How does Aetrix verify that MAX4750ETE+ is sourced from the original manufacturer or authorized distributors?
All MAX4750ETE+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX4750ETE+?
All MAX4750ETE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4750ETE+, 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+ part is unused and in its original packaging.
Return procedure for MAX4750ETE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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