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Analog Devices Inc./Maxim Integrated MAX4747EWE+
- Part No.:
- MAX4747EWE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WFBGA, WLBGA
- Datasheet:
-
MAX4747EWE+.pdf
- Description:
- 50 OHMS LOW-VOLTAGE, QUAD SPST A
- Quantity:
- Payment:
- Shipping:
Inventory:920
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Product details
Overview
MAX4747EWE+ from Maxim Integrated is a low-voltage, quad SPST analog switch with normally open (NO) configuration, operating from +2V to +11V and supporting rail-to-rail signal switching. It delivers 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 space-constrained, battery-powered medical and portable instrumentation.
For engineers reviewing the MAX4747EWE+ datasheet, MAX4747EWE+ pinout, MAX4747EWE+ application, or MAX4747EWE+ equivalent, this page provides verified package mapping (16-bump WLP), confirmed electrical specs across supply voltages (+3V/+5V), real-world dynamic performance (tON/tOFF, charge injection, crosstalk), and validated alternatives for low-leakage, low-RON analog switching in compact PCB layouts.
Technical Context
The MAX4747EWE+ implements CMOS-based bidirectional analog switches with TTL/CMOS-compatible digital control inputs and internal protection diodes. Its architecture guarantees rail-to-rail analog signal handling (0V to V+) and supports single-supply operation without level-shifting circuitry.
It features guaranteed on-resistance flatness (9Ω max at +3V), -72dB off-isolation at 1MHz, and -84dB crosstalk-critical for high-fidelity audio routing and low-distortion data-acquisition front-ends where channel integrity and signal fidelity must be preserved across temperature and supply variation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.0V to +11V - enables direct integration into Li-ion, coin-cell, and multi-rail systems without external regulators. |
| On-Resistance (RON) | 50Ω (max) at +3V - ensures minimal signal attenuation and gain error in sensor interface and ADC multiplexing paths. |
| RON Matching | 3.5Ω (max) between channels at +3V - maintains amplitude consistency across parallel signal paths in AFEs and audio mixers. |
| Leakage Current | <0.1nA at +25°C - preserves accuracy in high-impedance pH/glucose sensor front-ends and battery-monitoring circuits. |
| Turn-On/Off Time | 170ns / 70ns (max) at +3V - supports fast channel switching in time-division multiplexed data acquisition and real-time signal routing. |
| Off-Isolation | -72dB at 1MHz - suppresses unwanted coupling between inactive channels in multi-source audio/video routing. |
| Crosstalk | -84dB at 1MHz - prevents interference between adjacent switched signals in dense analog routing applications. |
Pinout & Package
MAX4747EWE+ uses a 16-bump wafer-level package (WLP) measuring 2mm × 2mm with bumps arranged in a 4×4 grid. The package is RoHS-compliant and requires reflow soldering per Maxim Application Note 1891.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| B1, A2, C4, D2 | NO1–NO4 | Normally open analog switch terminals - connect only when corresponding IN_ is HIGH; isolated otherwise. |
| A1, A3, D4, D3 | COM1–COM4 | Common analog node - bidirectional signal path shared between COM and NO terminals per channel. |
| C1, A4, B4, D1 | IN1–IN4 | Digital control inputs - TTL/CMOS-compatible; drive HIGH to close respective NO switch. |
| C3 | GND | Digital ground reference - must be connected to system ground plane for logic threshold stability and leakage control. |
| B2 | V+ | Single positive supply - powers analog and digital sections; exposed substrate connection requires solid thermal pad tie to V+. |
Key Features
| Feature | Design Value |
|---|---|
| 2mm × 2mm WLP footprint | Reduces PCB area by >70% vs. TSSOP - critical for ultra-compact glucose meters and wearable biosensors. |
| Rail-to-rail signal handling | Supports full 0V to V+ analog swing - eliminates level-shifting in single-supply battery-operated systems. |
| 0.5nW typical quiescent power | Extends battery life in always-on monitoring devices - e.g., continuous glucose monitors drawing sub-µA average current. |
| Guaranteed <0.1nA leakage | Maintains DC accuracy in high-Z sensor interfaces - avoids offset drift in microamp-level electrochemical measurements. |
| Break-before-make (BBM) | Not implemented - MAX4747 is quad SPST NO only; BBM applies only to MAX4749/MAX4750 variants. |
Applications
| Portable Medical Diagnostics | Low-Power Audio Routing |
|---|---|
Use Scenario: Signal multiplexing in handheld glucose meters with multiple electrode inputs and auto-ranging ADC. IC Role / Device Role / Timing Role: Quad SPST analog switch isolating individual working electrodes during sequential biasing and measurement cycles. Use Value: 50Ω RON and 3.5Ω matching ensure consistent current sourcing and minimal gain error across calibration and test modes. |
Use Scenario: Input source selection in Bluetooth earbuds with dual-mic beamforming and analog AUX input. IC Role / Device Role / Timing Role: Low-leakage, low-crosstalk analog switch routing microphone or line-in signals to codec input. Use Value: -84dB crosstalk and -72dB off-isolation prevent audible bleed-through between mic and music paths. |
| Industrial Sensor Interface | Portable Test Equipment |
Use Scenario: Channel selection in handheld multimeters and insulation testers with high-impedance voltage/current sensing front-ends. IC Role / Device Role / Timing Role: Precision analog switch enabling programmable gain and range switching without introducing offset or leakage errors. Use Value: <0.1nA leakage preserves nanoamp-level current measurement integrity in picoammeter-grade designs. |
Use Scenario: Signal path configuration in portable oscilloscope probes and logic analyzer accessories with multiple input ranges. IC Role / Device Role / Timing Role: Fast-switching analog multiplexer selecting between AC-coupled, DC-coupled, and attenuated signal paths. Use Value: 170ns turn-on time supports sub-microsecond channel switching for real-time waveform capture and triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4747ETE+ | Same die, 16-pin TQFN-EP (4mm × 4mm); higher thermal dissipation but 4× larger footprint than WLP. | Suitable for industrial boards with thermal constraints and less aggressive size targets. | Select MAX4747ETE+ when board space allows and thermal management via EP grounding is preferred over miniaturization. |
| ADG1419BCPZ-REEL7 | Quad SPST, 4.5Ω RON (typ) at +5V, but 16-lead LFCSP (3mm × 3mm); higher leakage (±1nA) and no +2V operation. | Acceptable in +5V-only systems where lower RON outweighs leakage and supply flexibility trade-offs. | Choose ADG1419 if +5V supply is fixed and sub-5Ω RON is prioritized over battery-life-critical leakage and wide-VCC support. |
Compared with MAX4747ETE+ and ADG1419BCPZ-REEL7, MAX4747EWE+ uniquely combines 2mm × 2mm size, +2V minimum supply, and <0.1nA leakage-making it the only option for ultra-low-power, space-constrained medical wearables requiring rail-to-rail signal integrity down to coin-cell voltages.
Availability
MAX4747EWE+ is available at Aetrix Electronics and suitable for portable medical diagnostics, low-power audio routing, industrial sensor interface, and portable test equipment requiring stable component supply across extended temperature (-40°C to +85°C) and long-lifecycle production.
Supply support for MAX4747EWE+ 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 was engineered specifically for low-voltage, low-leakage analog signal routing in battery-powered portable instrumentation-emphasizing miniaturization (WLP), rail-to-rail operation, and guaranteed parametric performance over temperature.
FAQ
What is the maximum supply voltage for MAX4747EWE+?
The absolute maximum supply voltage for MAX4747EWE+ is +12V referenced to GND, but the recommended operating range is +2.0V to +11V. Exceeding +11V risks violating safe operating area limits and may degrade long-term reliability. The device is fully specified and characterized up to +11V, with on-resistance and leakage parameters guaranteed across that range per the datasheet's Electrical Characteristics tables.
Does MAX4747EWE+ support rail-to-rail analog signals?
Yes, MAX4747EWE+ supports rail-to-rail analog signal handling from 0V to V+, as confirmed in both the General Description and Electrical Characteristics sections. This capability is enabled by its CMOS process and internal architecture, allowing full-swing signals without clipping or distortion-critical for accurate sensor interfacing and audio routing in single-supply systems.
What is the on-resistance matching specification for MAX4747EWE+ at +3V?
At +3V supply, MAX4747EWE+ guarantees ≤3.5Ω on-resistance matching (∆RON) between channels, defined as RON(MAX) – RON(MIN). This value is tested and specified over the full operating temperature range (-40°C to +85°C) and ensures amplitude consistency across all four SPST switches in precision multiplexing applications.
Is MAX4747EWE+ pin-compatible with other variants in the MAX4747–MAX4750 family?
No, MAX4747EWE+ is not pin-compatible with MAX4748EWE+, MAX4749EWE+, or MAX4750EWE+. While all share the same 16-bump WLP package outline, bump assignments differ significantly-for example, MAX4747 uses B1/A2/C4/D2 for NO1–NO4, whereas MAX4749 assigns those bumps to mixed NO/NC functions. Pin compatibility is only valid within identical part numbers and package variants.
What is the guaranteed leakage current for MAX4747EWE+ at +25°C?
MAX4747EWE+ guarantees NO_ or NC_ off-leakage current of ±0.1nA and COM_ off-leakage current of ±0.2nA at +25°C, as stated in the Electrical Characteristics table under "NO_ or NC_ Off-Leakage Current" and "COM_ Off-Leakage Current." These values are measured at V+ = +3.6V with specified voltage conditions on COM_ and NO_/NC_ terminals.
MAX4747EWE+ 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):
- 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-WLP
MAX4747EWE+ FAQ
1.How can I place an order for MAX4747EWE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4747EWE+ 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 MAX4747EWE+ reliable?
The price and inventory of MAX4747EWE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4747EWE+ is usually 5 days.
3.What payment methods are accepted for MAX4747EWE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4747EWE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4747EWE+?
MAX4747EWE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4747EWE+ 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 MAX4747EWE+?
For technical support, including MAX4747EWE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4747EWE+ requirements.
6.How does Aetrix verify that MAX4747EWE+ is sourced from the original manufacturer or authorized distributors?
All MAX4747EWE+ 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 MAX4747EWE+ meets industry standards.
7.What is the process for return or replacement of MAX4747EWE+?
All MAX4747EWE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4747EWE+, 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 MAX4747EWE+ part is unused and in its original packaging.
Return procedure for MAX4747EWE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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