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Analog Devices Inc./Maxim Integrated MAX4733EBL+
- Part No.:
- MAX4733EBL+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX4733EBL+.pdf
- Description:
- INTEGRATED CIRCUIT
- Quantity:
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Product details
Overview
The MAX4733EBL+ from Maxim Integrated is a dual single-pole/single-throw (SPST) analog switch with one normally open (NO) and one normally closed (NC) channel, operating from +2V to +11V supply. It delivers 50Ω max on-resistance at +3V, 3.5Ω max RON matching, <0.1nA leakage at +25°C, and rail-to-rail signal handling-ideal for low-power audio routing in portable instrumentation.
For engineers reviewing the MAX4733EBL+ datasheet, MAX4733EBL+ pinout, MAX4733EBL+ application, or MAX4733EBL+ equivalent, this device is selected for battery-powered signal switching where ultra-low quiescent power (0.5nW typ), break-before-make timing (1ns), and UCSP package size (1.52mm × 1.52mm) are critical design constraints.
Technical Context
The MAX4733EBL+ integrates two independent CMOS SPST switches-one NO and one NC-within a single die, sharing common logic inputs (IN1/IN2) and supply (V+). Its internal architecture ensures guaranteed break-before-make operation (tBBM ≤ 1ns), preventing momentary shorting during channel transitions.
It supports TTL/CMOS-compatible logic thresholds (VIH = 2.0V min at +5V, scalable rail-to-rail), operates over –40°C to +85°C, and maintains low dynamic parameters: 300MHz on-channel bandwidth, –108dB crosstalk, and –72dB off-isolation at 1MHz-enabling high-fidelity analog path selection without signal degradation.
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 insertion loss and voltage drop in precision sensor or audio signal paths. |
| RON Matching | 3.5Ω max at +3V - guarantees matched gain/attenuation between dual channels in differential or stereo applications. |
| Leakage Current | <0.1nA at +25°C - preserves accuracy in high-impedance data-acquisition front-ends and battery-monitoring circuits. |
| Break-Before-Make Time | 1ns max - eliminates signal shorting during channel switching in multiplexed ADC/DAC interfaces. |
| Off-Isolation | –72dB at 1MHz - suppresses crosstalk between active and inactive signal paths in dense PCB layouts. |
| Package Size | 1.52mm × 1.52mm UCSP - reduces board area by >70% vs. 8-pin µMAX, critical for space-constrained wearables. |
Pinout & Package
MAX4733EBL+ uses a 9-bump UCSP (Ultra-Compact Silicon Package) with bumps on the bottom surface. The package measures 1.52mm × 1.52mm × 0.6mm and features an exposed silicon die area; no thermal pad is present (unlike TDFN variants).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | NO1 | Normally open analog terminal of Channel 1 - connects to COM1 only when IN1 = logic high. |
| A2 | COM1 | Common analog node for Channel 1 - bidirectional I/O shared between NO1 and NC1. |
| A3 | GND | Digital ground reference - must be connected to system ground plane for stable logic and analog performance. |
| B1 | IN1 | Logic control input for Channel 1 - TTL/CMOS compatible; drives NO1/NC1 state transition. |
| B3 | IN2 | Logic control input for Channel 2 - independent of IN1; enables asynchronous dual-channel switching. |
| C1 | V+ | Positive supply input - accepts +2V to +11V; requires local 0.1µF bypass capacitor near the pin. |
| C2 | COM2 | Common analog node for Channel 2 - bidirectional I/O shared between NO2 and NC2. |
| C3 | NC2 | Normally closed analog terminal of Channel 2 - disconnects from COM2 only when IN2 = logic high. |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed 1ns tBBM prevents signal shorting during channel change - essential for safe multiplexing in medical sensors. |
| Rail-to-rail analog signal range | Supports signals from GND to V+ across full supply range (+2V to +11V) - eliminates external clamping diodes in battery-powered designs. |
| Ultra-low quiescent power | 0.5nW typical supply current - extends battery life in always-on IoT edge nodes and portable test equipment. |
| Low charge injection | 7.5pC max - minimizes voltage glitches at COM nodes during switching, preserving integrity in precision ADC sample-hold stages. |
| High off-isolation & low crosstalk | –72dB off-isolation and –108dB crosstalk at 1MHz - maintains signal purity in multi-channel audio/video routing. |
Applications
| Portable Medical Sensors | Smartphone Audio Routing |
|---|---|
Use Scenario: Multiplexing ECG, SpO₂, and temperature sensor outputs into a single ADC channel in a wearable health monitor. IC Role / Device Role / Timing Role: Dual SPST switch providing break-before-make isolation between biopotential sources to prevent cross-contamination and ensure measurement fidelity. Use Value: 1ns tBBM and <0.1nA leakage eliminate baseline drift and inter-channel coupling, enabling sub-µV resolution acquisition. |
Use Scenario: Dynamically routing microphone, headset, and speaker signals between baseband processor and audio codec in a smartphone. IC Role / Device Role / Timing Role: Low-RON analog switch managing bidirectional audio paths while maintaining THD <0.01% at 30kHz bandwidth. Use Value: 50Ω RON and 300MHz bandwidth preserve wideband audio fidelity; UCSP footprint saves >1.2mm² PCB area per switch pair. |
| Low-Power Data Loggers | Industrial Field Transmitter Interfaces |
Use Scenario: Selecting between multiple thermocouple or RTD inputs in a battery-operated environmental data logger. IC Role / Device Role / Timing Role: Precision analog switch isolating high-impedance sensor bridges from ADC input, minimizing offset error and noise injection. Use Value: 3.5Ω RON matching and 7.5pC charge injection reduce gain/offset errors across channels, improving multi-sensor calibration stability. |
Use Scenario: Switching 4–20mA loop diagnostics (e.g., open-circuit detection, shunt calibration) in a HART-enabled field transmitter. IC Role / Device Role / Timing Role: High-voltage-tolerant SPST switch enabling safe hot-swap reconfiguration of loop test points without interrupting live process current. Use Value: +11V absolute max V+ rating and –40°C to +85°C operation allow direct integration into industrial loop-powered modules without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4733EUA+ | 8-pin µMAX package (3.0mm × 3.0mm); same electrical specs but 4× larger footprint and higher thermal resistance. | Suitable for prototyping or legacy designs where UCSP assembly is unavailable; not recommended for space-constrained production. | Select MAX4733EUA+ only if board-level rework capability or standard SMT placement is required over miniaturization. |
| ADG702BRMZ-REEL7 | Single SPST switch (not dual); 4Ω RON at +3V but lacks NC/NO combination and break-before-make guarantee. | Requires two devices to replicate MAX4733EBL+ functionality; increases BOM count and layout complexity in dual-path systems. | Choose ADG702BRMZ-REEL7 only for single-channel, ultra-low-RON needs where NC/NO pairing is unnecessary. |
Compared with MAX4733EUA+, the MAX4733EBL+ saves >75% board area and improves thermal performance; compared with ADG702BRMZ-REEL7, it delivers integrated dual-channel functionality with guaranteed break-before-make timing-critical for reliable signal routing in compact, battery-sensitive systems.
Availability
MAX4733EBL+ is available at Aetrix Electronics and suitable for portable medical sensors, smartphone audio routing, and low-power data loggers requiring stable component supply across extended product lifecycles.
Supply support for MAX4733EBL+ 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 and mixed-signal ICs for demanding industrial, automotive, and communications applications.
The MAX4733EBL+ belongs to Maxim's low-voltage analog switch family, engineered specifically for ultra-low-power, space-constrained portable electronics requiring rail-to-rail signal integrity and guaranteed switching behavior.
FAQ
What is the maximum supply voltage rating for the MAX4733EBL+?
The MAX4733EBL+ has an absolute maximum supply voltage (V+) of +12V, but its specified operational range is +2.0V to +11V. Operating continuously at +11V is permitted provided a minimum 0.1µF ceramic bypass capacitor is placed directly at the V+ pin. Exceeding +12V risks permanent damage per the Absolute Maximum Ratings table.
Does the MAX4733EBL+ support break-before-make switching, and is it guaranteed?
Yes, the MAX4733EBL+ guarantees break-before-make operation with a maximum interval of 1ns (tBBM) under all conditions (–40°C to +85°C, +2.7V to +5.5V supply). This is explicitly documented in the Electrical Characteristics tables and applies only to the MAX4733 variant-not MAX4731 or MAX4732-making it uniquely suited for safe channel multiplexing.
What is the on-resistance matching specification for the MAX4733EBL+ at +3V supply?
At +3V supply and +25°C, the MAX4733EBL+ guarantees on-resistance matching (∆RON) of ≤3.5Ω between its two channels. This value represents the difference between the maximum and minimum RON of the NO1/COM1 and NC2/COM2 paths, ensuring consistent signal attenuation across both switches in stereo or differential configurations.
Can the MAX4733EBL+ handle analog signals beyond the supply rails?
No-the MAX4733EBL+ does not support overvoltage-tolerant operation. Analog signals on NO_, NC_, or COM_ pins must remain within –0.3V to (V+ + 0.3V) per Absolute Maximum Ratings. Signals exceeding this range risk forward-biasing internal protection diodes and causing excessive leakage or latch-up; external clamping is required for overvoltage scenarios.
What is the logic compatibility of the MAX4733EBL+ inputs at different supply voltages?
The MAX4733EBL+ inputs are TTL-compatible when V+ = +5V (VIH ≥ 2.0V, VIL ≤ 0.8V). At other supplies (e.g., +3.3V or +11V), inputs must be driven rail-to-rail-i.e., logic high = V+, logic low = GND-to ensure correct switching and minimize supply current. Driving partial-rail logic levels may increase static power or cause undefined states.
MAX4733EBL+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- -
- Number of Circuits:
- -
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX4733EBL+ FAQ
1.How can I place an order for MAX4733EBL+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4733EBL+ 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 MAX4733EBL+ reliable?
The price and inventory of MAX4733EBL+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4733EBL+ is usually 5 days.
3.What payment methods are accepted for MAX4733EBL+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4733EBL+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4733EBL+?
MAX4733EBL+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4733EBL+ 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 MAX4733EBL+?
For technical support, including MAX4733EBL+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4733EBL+ requirements.
6.How does Aetrix verify that MAX4733EBL+ is sourced from the original manufacturer or authorized distributors?
All MAX4733EBL+ 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 MAX4733EBL+ meets industry standards.
7.What is the process for return or replacement of MAX4733EBL+?
All MAX4733EBL+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4733EBL+, 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 MAX4733EBL+ part is unused and in its original packaging.
Return procedure for MAX4733EBL+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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