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Analog Devices Inc./Maxim Integrated MAX4733EBL+T
- Part No.:
- MAX4733EBL+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX4733EBL+T.pdf
- Description:
- INTEGRATED CIRCUIT
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Product details
Overview
The MAX4733EBL+T from Maxim Integrated is a dual SPST analog switch IC with one normally open (NO) and one normally closed (NC) channel, designed for low-voltage signal routing in space-constrained systems. It operates from +2V to +11V, delivers ≤50Ω on-resistance at +3V, ≤0.1nA leakage at +25°C, and supports rail-to-rail analog signals-ideal for battery-powered audio/video switching and portable data-acquisition circuits.
For engineers reviewing the MAX4733EBL+T datasheet, MAX4733EBL+T pinout, MAX4733EBL+T application, or MAX4733EBL+T equivalent, key selection criteria include break-before-make timing (1ns), 300MHz on-channel bandwidth, UCSP-9 package footprint (1.52mm × 1.52mm), and guaranteed on-resistance matching (≤3.5Ω at +3V).
Technical Context
The MAX4733EBL+T integrates two independent CMOS SPST switches-one NO and one NC-within a single die, enabling simultaneous bidirectional signal control with break-before-make timing to prevent transient shorting. Its logic inputs are TTL/CMOS-compatible across supply voltages, and internal protection diodes allow safe operation with analog signals exceeding V+ or GND by up to 0.3V.
It uses a low-leakage, low-capacitance switch architecture: COM_ on-capacitance is 40pF, off-isolation is –72dB at 1MHz, and crosstalk is –108dB at 1MHz-ensuring high-fidelity signal integrity in multi-channel routing applications such as cellular baseband and PDA audio paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.0V to +11V - enables direct integration into 3.3V, 5V, and higher-voltage portable systems without level-shifting. |
| On-Resistance (RON) | ≤50Ω at +3V - ensures minimal signal attenuation and voltage drop in low-power sensor or audio signal paths. |
| On-Resistance Matching | ≤3.5Ω max at +3V - guarantees matched gain/attenuation between channels in differential or dual-path routing. |
| Leakage Current | ≤±0.1nA at +25°C - preserves battery life in always-on monitoring circuits and prevents DC offset drift. |
| Break-Before-Make Time | 1ns - eliminates momentary short-circuit risk during channel switching in power-sensitive analog multiplexers. |
| Off-Isolation | –72dB at 1MHz - suppresses coupling between inactive and active signal paths in high-density PCB layouts. |
| Crosstalk | –108dB at 1MHz - maintains channel separation in stereo audio or dual ADC input routing. |
| Bandwidth | 300MHz - supports high-speed video signals (e.g., composite, S-video) and wideband sensor outputs. |
Pinout & Package
The MAX4733EBL+T is housed in a 9-bump UCSP (Ultra Compact Silicon Package) measuring 1.52mm × 1.52mm with bottom-side bumps. This wafer-level chip-scale package minimizes PCB area and thermal resistance while requiring JEDEC-compliant reflow profiles (IR/VPR per J-STD-020A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | NO1 | Normally open analog terminal of Switch 1 - connects to COM1 only when IN1 = logic high. |
| A2 | COM1 | Common analog node for Switch 1 - serves as bidirectional I/O for NO1 or NC1 paths. |
| A3 | GND | Digital ground reference - must be connected to system ground plane for stable logic thresholds and noise immunity. |
| B1 | IN1 | Digital control input for Switch 1 - TTL/CMOS-compatible; drives NO1/NC1 state based on logic level. |
| B3 | IN2 | Digital control input for Switch 2 - independent of IN1; enables asynchronous dual-channel control. |
| C1 | V+ | Positive supply input - powers internal circuitry and defines analog signal range (GND to V+). |
| C2 | COM2 | Common analog node for Switch 2 - bidirectional path shared with NO2 and NC2 terminals. |
| C3 | NC2 | Normally closed analog terminal of Switch 2 - connected to COM2 when IN2 = logic low. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Analog signals from GND to V+ pass with <9Ω RON flatness - preserves full dynamic range in 3.3V/5V systems. |
| Ultra-low quiescent power | 0.5nW typical supply current - extends battery life in always-on IoT sensors and wearable devices. |
| Guaranteed break-before-make | 1ns tBBM (MAX4733-specific) - prevents signal contention in analog muxes and relay-replacement circuits. |
| Low charge injection | 7.5pC - minimizes voltage glitches at COM nodes during switching, critical for precision ADC front-ends. |
| Small-footprint UCSP | 1.52mm × 1.52mm area - reduces PCB real estate by >70% vs. 8-pin µMAX, enabling ultra-compact handheld designs. |
Applications
| Audio Signal Routing | Portable Data Acquisition |
|---|---|
Use Scenario: Selecting between microphone and headset audio paths in smartphones or tablets. IC Role / Device Role / Timing Role: Dual SPST switch providing isolated, low-distortion signal paths with break-before-make timing to avoid pop/click artifacts. Use Value: 300MHz bandwidth and –108dB crosstalk ensure clean stereo separation; 50Ω RON matches typical audio source impedances. | Use Scenario: Multiplexing multiple sensor outputs (e.g., temperature, accelerometer) into a single ADC channel. IC Role / Device Role / Timing Role: Low-leakage analog switch enabling precise DC-coupled measurements without offset error accumulation. Use Value: ≤0.1nA leakage at +25°C prevents measurable voltage error across 1MΩ sensor sources; rail-to-rail support captures full sensor range. |
| Battery-Powered Instrumentation | Communications Circuit Protection |
Use Scenario: Enabling/disabling power to RF front-end modules in low-duty-cycle wireless transceivers. IC Role / Device Role / Timing Role: Low-quiescent-current load switch controlling V+ delivery to external circuitry via logic-controlled NO/NC paths. Use Value: 0.5nW standby power minimizes sleep-mode drain; 11V max V+ rating accommodates Li-ion battery packs (up to 4.2V) with margin. | Use Scenario: Isolating sensitive baseband ICs from antenna switch transients in cellular handsets. IC Role / Device Role / Timing Role: High-off-isolation (–72dB) analog gate protecting receiver inputs during transmit bursts. Use Value: –72dB off-isolation attenuates RF leakage below ADC noise floor; UCSP package reduces parasitic inductance in RF layout. |
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 |
|---|---|---|---|
| MAX4733ETA+ | Same electrical specs but in 8-pin TDFN-EP (3mm × 3mm) with exposed pad - higher thermal dissipation, larger footprint. | Suitable for thermally demanding or higher-current routing where UCSP rework is impractical. | Select MAX4733ETA+ when board assembly uses standard reflow for exposed-pad packages and thermal management >379mW is required. |
| ADG721BRMZ-REEL7 | Single-supply +1.8V to +5.5V; 4Ω RON at +3V; no break-before-make; 10-lead MSOP package. | Better RON for precision low-voltage systems but lacks MAX4733EBL+T's 1ns tBBM and UCSP size advantage. | Choose ADG721BRMZ-REEL7 for sub-3V battery systems prioritizing lowest on-resistance over compactness or break-before-make timing. |
Compared with MAX4733ETA+, the MAX4733EBL+T saves >75% PCB area and suits ultra-thin portable designs; versus ADG721BRMZ-REEL7, it supports wider supply range (+2V to +11V), guarantees break-before-make, and offers superior off-isolation (–72dB vs. –68dB), making it preferred for mixed-voltage and RF-adjacent routing.
Availability
MAX4733EBL+T is available at Aetrix Electronics and suitable for battery-powered instrumentation, portable data-acquisition systems, and communications circuit protection requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for MAX4733EBL+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 and mixed-signal ICs for power, sensing, interface, and timing applications in industrial, automotive, and consumer systems.
The MAX473x family targets low-voltage, low-power analog signal routing-specifically engineered for space-constrained portable electronics needing rail-to-rail performance, nanowatt quiescent power, and guaranteed break-before-make timing.
FAQ
What is the maximum supply voltage rating for the MAX4733EBL+T?
The MAX4733EBL+T has an absolute maximum supply voltage (V+) of +12V, but its specified operating range is +2.0V to +11V. Operating continuously at +11V requires a minimum 0.1µF bypass capacitor placed close to the V+ pin to ensure stability. Exceeding +12V risks permanent damage, as confirmed in the Absolute Maximum Ratings table of the official datasheet.
Does the MAX4733EBL+T support rail-to-rail analog signal switching?
Yes, the MAX4733EBL+T supports true rail-to-rail analog signal switching - signals from GND to V+ pass through both switches with minimal on-resistance variation. At +3V supply, RON flatness is guaranteed ≤9Ω across the full 0V to +3V analog range, enabling accurate DC and AC signal routing without clipping or distortion.
What is the function of the exposed pad in the MAX4733EBL+T UCSP package?
The MAX4733EBL+T UCSP package does not include an exposed pad - unlike the TDFN variant (e.g., MAX4733ETA+), the UCSP-9 construction uses solder bumps on the bottom surface only. The package outline drawing (21-0093) confirms no EP designation; thermal management relies on bump-to-PCB conduction, not pad-to-ground connection.
How does the break-before-make timing work in the MAX4733EBL+T?
The MAX4733EBL+T implements guaranteed break-before-make (tBBM) timing of ≤1ns between its NO1/NC1 and NO2/NC2 switch pairs - a feature exclusive to the MAX4733 variant. This ensures the NC path opens before the NO path closes during logic transitions, preventing momentary shorts in analog multiplexer or relay-replacement configurations, as verified in Figure 3 and Electrical Characteristics tables.
Can the MAX4733EBL+T be used with a +1.8V supply?
No, the MAX4733EBL+T cannot operate reliably at +1.8V. Its minimum specified supply voltage is +2.0V, and logic thresholds (VIH = +2.0V at +5V supply; VIH scales with V+) become undefined below that limit. Attempting +1.8V operation risks incomplete switching, increased leakage, and potential latch-up - the device is not characterized or guaranteed for sub-2V use.
MAX4733EBL+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX4733EBL+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4733EBL+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 MAX4733EBL+T reliable?
The price and inventory of MAX4733EBL+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4733EBL+T is usually 5 days.
3.What payment methods are accepted for MAX4733EBL+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4733EBL+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4733EBL+T?
MAX4733EBL+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4733EBL+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 MAX4733EBL+T?
For technical support, including MAX4733EBL+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4733EBL+T requirements.
6.How does Aetrix verify that MAX4733EBL+T is sourced from the original manufacturer or authorized distributors?
All MAX4733EBL+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 MAX4733EBL+T meets industry standards.
7.What is the process for return or replacement of MAX4733EBL+T?
All MAX4733EBL+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4733EBL+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 MAX4733EBL+T part is unused and in its original packaging.
Return procedure for MAX4733EBL+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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