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Analog Devices Inc./Maxim Integrated MAX4747ETE+T
- Part No.:
- MAX4747ETE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX4747ETE+T.pdf
- Description:
- IC SWITCH SPST-NOX4 25OHM 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,538
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Product details
Overview
MAX4747ETE+T from Maxim Integrated is a low-voltage, quad SPST analog switch with normally open (NO) configuration, operating from +2V to +11V single supply and handling rail-to-rail signals. It delivers 50Ω max on-resistance at +3V, 3.5Ω max channel matching, <0.1nA leakage at +25°C, and 0.5nW typical quiescent power-enabling precision signal routing in space-constrained, battery-powered medical and portable instrumentation.
For engineers reviewing the MAX4747ETE+T datasheet, MAX4747ETE+T pinout, MAX4747ETE+T application, or MAX4747ETE+T equivalent, this page provides verified package mapping (16-pin TQFN-EP), confirmed switching performance metrics (tON/tOFF, RON flatness, off-isolation), and real-world design context for audio routing, glucose meter front-ends, and low-voltage data acquisition systems.
Technical Context
The MAX4747ETE+T implements four independent CMOS SPST switches with TTL/CMOS-compatible digital inputs and rail-to-rail analog signal capability. Its architecture guarantees monotonic on-resistance behavior across VCOM (0V to V+) and maintains ≤9Ω RON flatness over full signal range at +3V.
It features integrated protection diodes, supports break-before-make timing only in MAX4749/MAX4750 variants (not applicable here), and exhibits -72dB off-isolation and -84dB crosstalk at 1MHz-critical for high-fidelity analog multiplexing in sensitive measurement paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.0V to +11V single supply - enables direct integration with Li-ion, 3.3V, and 5V system rails without level shifting. |
| On-Resistance (RON) | 50Ω max at +3V - ensures minimal signal attenuation and gain error in precision sensor interfaces. |
| RON Matching | 3.5Ω max between channels at +3V - preserves amplitude consistency across multi-channel signal routing. |
| Leakage Current | <0.1nA at +25°C - prevents DC offset drift in high-impedance biomedical front-ends (e.g., glucose meter electrodes). |
| Off-Isolation | -72dB at 1MHz - suppresses crosstalk between inactive channels in AFE multiplexers. |
| Turn-On/Off Time | 170ns / 70ns max at +3V - supports fast-switching applications like auto-ranging DMMs and dynamic signal path selection. |
| Package | 16-pin TQFN-EP (4mm × 4mm, exposed pad) - provides thermal efficiency and PCB area savings vs. TSSOP. |
Pinout & Package
MAX4747ETE+T uses a 16-pin Thin QFN-EP package (4mm × 4mm) with exposed pad connected to V+. Pin functions are validated per Maxim's official pin description table for MAX4747 in TQFN configuration.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3 | COM1, COM2 | Common analog terminals for two independent SPST switches - bidirectional signal path nodes. |
| 2 | NO2 | Normally open terminal of second switch - connects to COM2 only when IN2 is high. |
| 4, 13 | IN2, IN1 | Digital control inputs - TTL/CMOS compatible; drive high to close corresponding NO switch. |
| 5, 12 | IN3, IN4 | Digital control inputs - enable independent activation of third and fourth SPST switches. |
| 6 | GND | Digital/analog ground reference - must be low-impedance connection to minimize noise coupling. |
| 7 | NO3 | Normally open terminal of third switch - connects to COM3 when IN3 is high. |
| 9, 10 | COM3, COM4 | Common analog terminals for remaining two SPST switches - complete quad routing capability. |
| 11 | NO4 | Normally open terminal of fourth switch - closes to COM4 upon IN4 high assertion. |
| 15 | V+ | Positive supply for analog and digital circuitry - requires local 0.1µF bypass capacitor. |
| 16 | NO1 | Normally open terminal of first switch - connects to COM1 when IN1 is high. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs from GND to V+ - eliminates clipping in battery-powered sensor interfaces with varying common-mode voltages. |
| Guaranteed RON flatness | ≤9Ω variation over full signal range at +3V - ensures consistent gain and linearity in precision measurement paths. |
| Ultra-low leakage | <0.1nA at +25°C - critical for maintaining accuracy in high-impedance electrode circuits (e.g., ECG, glucose sensors). |
| Low quiescent power | 0.5nW typical - extends battery life in portable diagnostics and wearable health monitors. |
| TTL/CMOS logic compatibility | VIH = +2.0V min, VIL = +0.8V max at +3V - allows direct interfacing with microcontroller GPIO without external level shifters. |
Applications
| Battery-Powered Glucose Meters | Portable Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing multiple electrode inputs and reference paths in handheld blood glucose analyzers. IC Role / Device Role / Timing Role: Quad SPST analog switch enabling sequential sampling of test strip electrodes while maintaining signal integrity. Use Value: Sub-0.1nA leakage prevents baseline drift; 50Ω RON ensures accurate current-to-voltage conversion in amperometric sensing. |
Use Scenario: Selecting between microphone inputs, line-level sources, or DAC outputs in Bluetooth headsets and portable speakers. IC Role / Device Role / Timing Role: Low-distortion analog switch routing audio signals without introducing audible artifacts or channel imbalance. Use Value: -84dB crosstalk and 250MHz bandwidth preserve stereo separation and high-frequency fidelity in compact audio subsystems. |
| Low-Voltage Data Acquisition Front-Ends | Cell Phone Sensor Hub Interfaces |
Use Scenario: Channel selection in 12-bit+ portable DMMs and environmental sensor arrays powered by coin cells. IC Role / Device Role / Timing Role: Precision analog multiplexer managing input paths to ADC while minimizing offset and gain errors. Use Value: 3.5Ω RON matching and ≤9Ω flatness reduce channel-to-channel measurement variance below 0.1% FS. |
Use Scenario: Isolating ambient light, proximity, and accelerometer signals from shared analog bus in smartphone sensor hubs. IC Role / Device Role / Timing Role: Low-power signal gate preventing cross-talk between always-on sensors and intermittent measurement cycles. Use Value: 0.5nW quiescent power minimizes standby current; 170ns turn-on enables rapid sensor polling without latency penalty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4747EUD+ | 14-pin TSSOP package; same electrical specs but larger footprint and higher thermal resistance (727mW vs. 1349mW dissipation). | Better suited for prototyping or legacy board designs where TQFN reflow is unavailable. | Select MAX4747EUD+ when manual soldering or through-hole compatibility is required; MAX4747ETE+T preferred for volume production and thermal performance. |
| ADG1419BRUZ | Quad SPST, 4.5Ω RON max at +5V, -82dB off-isolation, but requires dual ±5V or single +12V supply - no +2V operation. | Targeted at industrial test equipment with higher supply rails; not suitable for sub-3V battery systems. | Choose ADG1419BRUZ only if system operates at ≥±5V and demands lower RON; MAX4747ETE+T remains optimal for 2–5V portable designs. |
Compared with MAX4747EUD+, MAX4747ETE+T offers superior thermal performance and 30% smaller PCB area; versus ADG1419BRUZ, it enables true low-voltage operation down to +2V with comparable isolation but higher RON-making it the only viable choice for coin-cell-powered medical devices.
Availability
MAX4747ETE+T is available at Aetrix Electronics and suitable for battery-powered glucose meters, portable audio routing, and low-voltage data-acquisition systems requiring stable component supply across extended product lifecycles.
Supply support for MAX4747ETE+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) designs precision analog, mixed-signal, and power-management ICs for demanding industrial, medical, and communications applications.
The MAX4747–MAX4750 family targets ultra-low-power, space-constrained analog signal routing-specifically engineered for battery-operated medical instruments, portable test equipment, and consumer electronics requiring rail-to-rail performance at sub-3V supplies.
FAQ
What is the maximum supply voltage rating for MAX4747ETE+T?
The MAX4747ETE+T has an absolute maximum V+ rating of +12V referenced to GND, but its specified operational range is +2.0V to +11V. Operating continuously near +11V requires a minimum 0.1µF bypass capacitor placed as close as possible to the V+ pin. Exceeding +12V risks permanent damage, and the device is not characterized beyond +11V for guaranteed parametric performance.
Does MAX4747ETE+T support rail-to-rail analog signal switching?
Yes, MAX4747ETE+T fully supports rail-to-rail analog signal switching: analog inputs on COM_, NO_, and NC_ pins can swing from GND to V+ without distortion or increased on-resistance. This is confirmed in the Electrical Characteristics tables and Typical Operating Characteristics plots (e.g., RON vs. VCOM), where RON remains stable across the full 0V to V+ range at all tested supply voltages.
What is the on-resistance matching specification for MAX4747ETE+T at +3V?
At +3V supply, MAX4747ETE+T guarantees ≤3.5Ω on-resistance matching (∆RON) between any two channels, defined as RON(max) − RON(min). This parameter is measured under V+ = +2.7V, ICOM_ = 5mA, and VNO_/VNC_ = +1.5V, and applies across the full operating temperature range (−40°C to +85°C), ensuring consistent channel gain in multi-path signal routing.
Can MAX4747ETE+T be used with a +2.5V supply?
Yes, MAX4747ETE+T is fully specified and functional at +2.5V supply. The Electrical Characteristics tables include data at +2.7V (within ±10% of +2.5V), confirming RON ≤60Ω, leakage <±2nA, and logic thresholds (VIH = +1.4V, VIL = +0.8V) remain valid. Its +2V to +11V range makes it ideal for systems powered by single LiFePO₄ cells or regulated 2.5V rails.
How is the exposed pad (EP) of the MAX4747ETE+T package connected?
The exposed pad (EP) of the MAX4747ETE+T TQFN package must be connected to V+ to ensure proper thermal performance and electrical stability. This requirement is explicitly stated in the datasheet ("*CONNECT EP TO V+") and reflected in the absolute maximum ratings and thermal derating specifications (1349mW dissipation at +70°C with 16.9mW/°C derating above that point).
MAX4747ETE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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-TQFN (4x4)
MAX4747ETE+T FAQ
1.How can I place an order for MAX4747ETE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4747ETE+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 MAX4747ETE+T reliable?
The price and inventory of MAX4747ETE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4747ETE+T is usually 5 days.
3.What payment methods are accepted for MAX4747ETE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4747ETE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4747ETE+T?
MAX4747ETE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4747ETE+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 MAX4747ETE+T?
For technical support, including MAX4747ETE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4747ETE+T requirements.
6.How does Aetrix verify that MAX4747ETE+T is sourced from the original manufacturer or authorized distributors?
All MAX4747ETE+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 MAX4747ETE+T meets industry standards.
7.What is the process for return or replacement of MAX4747ETE+T?
All MAX4747ETE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4747ETE+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 MAX4747ETE+T part is unused and in its original packaging.
Return procedure for MAX4747ETE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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