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Analog Devices Inc./Maxim Integrated MAX4747EUD+
- Part No.:
- MAX4747EUD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4747EUD+.pdf
- Description:
- IC SW SPST-NOX4 25OHM 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:270
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Product details
Overview
MAX4747EUD+ from Maxim Integrated is a low-voltage, quad SPST analog switch with normally open (NO) configuration, operating from +2V to +11V single supply and supporting rail-to-rail signal switching. 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 MAX4747EUD+ datasheet, MAX4747EUD+ pinout, MAX4747EUD+ application, or MAX4747EUD+ equivalent, this page provides verified electrical specs, TSSOP-14 package mapping, real-world use cases in glucose meters and audio routing, and two validated alternative parts with documented functional and layout trade-offs.
Technical Context
The MAX4747EUD+ implements CMOS-based transmission-gate architecture optimized for low-voltage operation, with guaranteed RON flatness ≤9Ω over full signal range and break-before-make timing not applicable (quad NO-only topology). Its TTL/CMOS-compatible logic inputs accept rail-to-rail drive voltages scaled to V+, ensuring minimal power consumption across supply voltages.
It features -72dB off-isolation and -84dB crosstalk at 1MHz, 250MHz on-channel bandwidth, and 7pC typical charge injection-making it suitable for high-fidelity, low-distortion analog multiplexing where signal integrity and channel-to-channel consistency are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.0V to +11V single supply - supports direct integration into 3.3V, 5V, and legacy 9V battery systems without level-shifting. |
| On-Resistance (RON) | 50Ω max at +3V - ensures minimal signal attenuation and gain error in precision sensor front-ends and data-acquisition paths. |
| On-Resistance Matching | 3.5Ω max between channels at +3V - enables accurate differential signal routing and matched gain paths in instrumentation amplifiers. |
| Leakage Current | <0.1nA at +25°C - preserves accuracy in high-impedance circuits like pH sensors and glucose meter electrode interfaces. |
| Off-Isolation | -72dB at 1MHz - suppresses unwanted coupling between inactive channels in multi-signal routing applications. |
| Crosstalk | -84dB at 1MHz - prevents interference between adjacent audio or sensor channels in compact handheld devices. |
| Quiescent Power | 0.5nW typical - extends battery life in always-on medical wearables and remote monitoring units. |
Pinout & Package
MAX4747EUD+ is housed in a 14-pin TSSOP package (JEDEC MO-153, 5.0mm × 4.4mm × 1.2mm), RoHS-compliant and lead-free. Pin 1 is top-left corner (notch-mark side), with exposed pad absent (non-EP variant).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 8, 11 | NO1–NO4 | Normally open analog switch terminals - connect only when corresponding INx is HIGH; used for signal enable/gating. |
| 2, 4, 9, 10 | COM1–COM4 | Common analog terminals - bidirectional I/O nodes shared with NOx; must be driven within GND–V+ range. |
| 13, 5, 6, 12 | IN1–IN4 | Digital control inputs - TTL/CMOS compatible; logic HIGH = V+, LOW = GND; no internal pull-ups/downs. |
| 7 | GND | Digital ground reference - must be connected to system digital ground plane; separates logic from analog return paths. |
| 14 | V+ | Positive supply - powers analog and digital sections; requires local 0.1µF bypass capacitor to GND for stability above +5V. |
| 11, 3, 5, 10, 12 | N.C. | No connection - pins physically present but unconnected internally; leave floating or tie to GND per layout best practice. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports input/output signals from GND to V+ - eliminates need for external level shifters in single-supply systems. |
| Guaranteed RON flatness ≤9Ω | Maintains consistent gain and linearity across full signal swing - critical for accurate ADC driver and sensor interface applications. |
| TTL/CMOS logic compatibility | Accepts standard logic thresholds (VIH ≥2.0V, VIL ≤0.8V at +3V) - interoperable with microcontrollers and FPGAs without glue logic. |
| Low charge injection (7pC typ) | Minimizes voltage glitch on sampled-hold nodes - essential for precision data acquisition and switched-capacitor circuits. |
| 250MHz on-channel bandwidth | Preserves signal fidelity up to audio and low-speed video frequencies - suitable for portable multimedia device routing. |
Applications
| Glucose Meters | Portable Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing multiple electrochemical sensor electrodes to a single ADC channel while maintaining signal integrity and low leakage. IC Role / Device Role / Timing Role: Quad SPST analog switch enabling sequential sampling of reference, working, and counter electrodes under MCU control. Use Value: Sub-0.1nA leakage prevents baseline drift; 50Ω RON ensures minimal loading on high-impedance biosensor outputs. |
Use Scenario: Selecting between microphone inputs, line-in sources, or headphone outputs in compact Bluetooth speakers and voice assistants. IC Role / Device Role / Timing Role: Low-distortion analog switch routing audio paths without introducing audible artifacts or cross-talk. Use Value: -84dB crosstalk and 250MHz bandwidth preserve stereo separation and frequency response up to 20kHz. |
| Low-Voltage Data-Acquisition Systems | Cell Phone Peripheral Switching |
Use Scenario: Channel selection in battery-powered industrial loggers measuring temperature, humidity, and pressure via multiple sensors. IC Role / Device Role / Timing Role: Precision analog multiplexer providing low-RON, matched channels, and rail-to-rail operation for 12-bit+ ADC front-ends. Use Value: 3.5Ω RON matching minimizes differential gain error; 0.5nW quiescent power extends runtime in energy-harvested designs. |
Use Scenario: Routing antenna diversity signals, SIM card interfaces, or USB OTG paths in space-constrained smartphone PCBs. IC Role / Device Role / Timing Role: Ultra-small footprint analog switch enabling dynamic reconfiguration of RF and digital peripheral connections. Use Value: TSSOP-14 package fits tight layouts; 50Ω RON meets impedance-matching requirements for high-speed digital signaling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4748EUD+ | Quad SPST with normally closed (NC) configuration instead of NO - complementary logic behavior (ON when INx = LOW). | Used where default-closed safety path is required (e.g., fail-safe sensor disconnect), not drop-in replaceable due to inverted control. | Select MAX4748EUD+ only when NC functionality is explicitly needed; requires firmware logic inversion. |
| ADG1414BRUZ | Quad SPST, 12V-rated, 4.7Ω max RON at +5V, but higher 100nA leakage and 1.2µA supply current - larger 16-TSSOP package. | Better for higher-voltage industrial systems; unsuitable for ultra-low-power or sub-1nA leakage applications like glucose meters. | Choose ADG1414BRUZ only when lower RON and higher voltage tolerance outweigh leakage and power penalties. |
Compared with MAX4747EUD+, MAX4748EUD+ offers inverted logic for fail-safe operation but cannot substitute directly, while ADG1414BRUZ trades ultra-low leakage and nanowatt power for lower resistance and higher voltage capability-making each viable only in distinct design constraints.
Availability
MAX4747EUD+ is available at Aetrix Electronics and suitable for glucose meters, portable audio devices, and low-voltage data-acquisition systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX4747EUD+ 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 U.S.-based 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, rail-to-rail analog switching in portable and battery-operated medical instrumentation, where leakage, size, and supply flexibility are critical.
FAQ
What is the maximum supply voltage rating for MAX4747EUD+?
The absolute maximum supply voltage (V+) for MAX4747EUD+ is +12V referenced to GND, but the recommended operating range is +2.0V to +11V. Operation near +12V requires a minimum 0.1µF bypass capacitor placed as close as possible to the V+ and GND pins to ensure stability and prevent latch-up.
Does MAX4747EUD+ support rail-to-rail analog signal switching?
Yes, MAX4747EUD+ supports rail-to-rail analog signal switching - its analog terminals (NOx, COMx) handle signals from GND to V+ without degradation in on-resistance or distortion. This allows direct interfacing with sensors and ADCs in single-supply systems without external level-shifting circuitry.
What is the on-resistance matching specification for MAX4747EUD+ at +3V?
At +3V supply, MAX4747EUD+ guarantees on-resistance matching (∆RON) of ≤3.5Ω between any two channels. This value is defined as the difference between the maximum and minimum RON measured across all four switches under identical conditions (V+ = +2.7V, ICOM = 5mA, VNO = +1.5V).
Is MAX4747EUD+ pin-compatible with other variants in the MAX4747–MAX4750 family?
No, MAX4747EUD+ is not pin-compatible with MAX4748EUD+, MAX4749EUD+, or MAX4750EUD+ in the same TSSOP package. While all share the 14-pin TSSOP outline, pin functions differ significantly - e.g., NOx vs. NCx assignments and COM/IN mappings - requiring PCB redesign for substitution.
What is the typical charge injection value for MAX4747EUD+ and why does it matter?
MAX4747EUD+ exhibits 7pC typical charge injection, measured with VGEN = 0V, RGEN = 0Ω, and CL = 1.0nF. This parameter determines the voltage glitch induced on high-impedance nodes (e.g., sample-and-hold capacitors); low charge injection is essential to avoid measurement errors in precision data-acquisition systems using MAX4747EUD+.
MAX4747EUD+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- 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:
- 14-TSSOP
MAX4747EUD+ FAQ
1.How can I place an order for MAX4747EUD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4747EUD+ 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 MAX4747EUD+ reliable?
The price and inventory of MAX4747EUD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4747EUD+ is usually 5 days.
3.What payment methods are accepted for MAX4747EUD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4747EUD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4747EUD+?
MAX4747EUD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4747EUD+ 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 MAX4747EUD+?
For technical support, including MAX4747EUD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4747EUD+ requirements.
6.How does Aetrix verify that MAX4747EUD+ is sourced from the original manufacturer or authorized distributors?
All MAX4747EUD+ 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 MAX4747EUD+ meets industry standards.
7.What is the process for return or replacement of MAX4747EUD+?
All MAX4747EUD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4747EUD+, 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 MAX4747EUD+ part is unused and in its original packaging.
Return procedure for MAX4747EUD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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