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Analog Devices Inc./Maxim Integrated MAX4734EGC+T
- Part No.:
- MAX4734EGC+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-VFQFN Exposed Pad
- Datasheet:
-
MAX4734EGC+T.pdf
- Description:
- IC SWITCH SP4T X 1 800MOHM 12QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,680
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Product details
Overview
MAX4734EGC+T from Maxim Integrated is a low-voltage, 4-channel CMOS analog multiplexer with 0.8Ω (max) on-resistance at 3V supply, 25ns turn-on time, and rail-to-rail signal handling from GND to V+. It features break-before-make switching, 1.8V CMOS logic compatibility, and operates from a single 1.6V–3.6V supply-ideal for battery-powered audio routing and low-voltage data-acquisition systems.
For engineers reviewing the MAX4734EGC+T datasheet, MAX4734EGC+T pinout, MAX4734EGC+T application, or MAX4734EGC+T equivalent, this page delivers verified package mapping (12-pin TQFN), confirmed RON flatness (0.1Ω max), leakage specs (±2nA COM on-leakage), switching timing (tBBM = 5ns), and real-world use context in PCMCIA cards and cellular phone power routing.
Technical Context
The MAX4734EGC+T implements a CMOS-based 4:1 analog multiplexer with address decoding (A1/A0) and global enable (EN), supporting bidirectional signal flow between COM and four NO terminals. Its break-before-make architecture prevents momentary shorting during channel transitions, critical for precision signal routing.
It uses a single-supply CMOS process optimized for low-voltage operation: RON remains stable across 0–V+ analog input range, and logic inputs tolerate up to 3.6V regardless of V+ (1.6V–3.6V), enabling mixed-voltage system interfacing without level shifters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 0.8Ω max at V+ = 2.7V - enables ≤150mA continuous current with <120mV IR drop at full load |
| RON Flatness | 0.1Ω max at V+ = 2.7V - ensures consistent gain/attenuation across analog signal range (0–V+) |
| Turn-On/Off Time | tON = 25ns, tOFF = 20ns max - supports >10MHz switching in high-speed data acquisition |
| Analog Signal Range | 0V to V+ - passes rail-to-rail signals without clipping or distortion in 3V systems |
| Logic Compatibility | 1.8V CMOS-compatible inputs at 3V supply - interfaces directly with 1.8V microcontrollers without external buffers |
| Off-Isolation | −56dB at 1MHz - suppresses crosstalk between active and inactive channels in audio/video routing |
| Supply Current | 1µA max at V+ = 3.6V - draws <4µW quiescent power, extending battery life in portable devices |
Pinout & Package
MAX4734EGC+T is housed in a 12-pin TQFN package (3mm × 3mm, exposed pad), optimized for space-constrained portable designs. The exposed pad must be soldered to ground for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A0) | Address Input 0 | Selects one of four analog channels (NO1–NO4) when combined with A1; TTL/CMOS compatible |
| 2 (N.C.) | No Connection | Internally unconnected; must remain floating or grounded per layout best practice |
| 3 (A1) | Address Input 1 | MSB of 2-bit channel select; enables full 4-channel decoding with A0 |
| 4 (NO2) | Analog Switch Output 2 | Normally open terminal routed to COM when selected; bidirectional, handles ±150mA |
| 5 (COM) | Common Analog Terminal | Shared I/O port for all four channels; connects to selected NOx; rail-to-rail capable |
| 6 (NO4) | Analog Switch Output 4 | Fourth channel output; identical RON, leakage, and bandwidth specs as NO1–NO3 |
| 7 (EN) | Enable Input | Active-high global enable; disables all switches when low, reducing leakage and power |
| 8 (V+) | Positive Supply | Single 1.6V–3.6V supply input; powers analog and digital sections; bypass with 0.1µF to GND |
| 9 (NO1) | Analog Switch Output 1 | Primary channel output; used in default routing paths in modems and hard drives |
| 10 (GND) | Ground Reference | Analog/digital common reference; connects to PCB ground plane and exposed pad |
| 11 (NO3) | Analog Switch Output 3 | Third channel output; matches RON matching spec (ΔRON ≤ 0.2Ω) with other NOx pins |
| 12 (EP) | Exposed Pad | Thermal and electrical ground connection; required for SOA compliance and EMI reduction |
Key Features
| Feature | Design Value |
|---|---|
| Break-Before-Make Switching | Guaranteed 5ns minimum tBBM prevents signal shorting during channel transitions in power routing |
| Rail-to-Rail Analog Handling | Supports 0V to V+ input range with <0.1Ω RON variation - preserves signal integrity in audio DAC outputs |
| Ultra-Low Quiescent Power | 1µA supply current at 3.6V - enables always-on signal path monitoring in battery-backed systems |
| High Off-Isolation | −56dB at 1MHz - isolates unused video channels in PCMCIA cards to prevent ghosting or noise coupling |
| Charge Injection Control | 60pC max - minimizes voltage glitch on COM during switching, critical for precision ADC front-ends |
Applications
| Audio Signal Routing | Battery-Powered Data Acquisition |
|---|---|
|
Use Scenario: Selecting between multiple microphone or line-in sources in a smartphone or headset controller. IC Role / Device Role / Timing Role: 4:1 analog multiplexer routing audio paths to a single codec input with minimal THD (0.018%) and no DC offset. Use Value: Enables compact, low-power source selection without external biasing or level-shifting circuitry. |
Use Scenario: Multiplexing sensor outputs (temperature, pressure, accelerometer) into a shared ADC in a wearable health monitor. IC Role / Device Role / Timing Role: Low-leakage (±2nA COM on-leakage), rail-to-rail switch ensuring accurate sub-mV signal capture at 1.8V operation. Use Value: Maintains measurement accuracy across temperature range (−40°C to +85°C) with <0.1Ω RON flatness. |
| PCMCIA Card Interface | Cellular Phone Power Routing |
|
Use Scenario: Isolating legacy parallel ATA or CompactFlash signals from host controller while minimizing capacitive loading. IC Role / Device Role / Timing Role: High off-isolation (−56dB) and low COFF (33pF) preserve signal edge rates and reduce crosstalk between card functions. Use Value: Allows hot-swap compatibility and noise-free data transfer without redesigning card-edge connectors. |
Use Scenario: Dynamically routing power from battery or USB input to subsystems (RF, display, baseband) in dual-mode handsets. IC Role / Device Role / Timing Role: 150mA continuous current handling and 0.8Ω RON limit voltage drop to <120mV under full load. Use Value: Eliminates need for discrete MOSFETs and gate drivers, reducing BOM count and PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617EUA+ | Single SPST switch, 3Ω RON at 3V, 10-pin µMAX - higher RON, no address decoding | Suitable only for on/off control of one signal path, not 4-channel selection | Choose MAX4617EUA+ only when discrete switching suffices and board space allows larger package |
| TMUX1574RSVR | 4-channel mux, 0.5Ω RON at 3.3V, 16-pin WQFN - lower RON, but requires 1.08V–3.6V supply and has different pinout | Supports higher bandwidth (300MHz) but lacks guaranteed break-before-make timing | Prefer TMUX1574RSVR for RF-sensitive applications where RON flatness and isolation exceed MAX4734EGC+T specs |
Compared with MAX4734EGC+T, MAX4617EUA+ offers simpler control but no channel selection capability, while TMUX1574RSVR delivers lower on-resistance and higher bandwidth at the cost of missing break-before-make assurance and requiring PCB layout changes.
Availability
MAX4734EGC+T is available at Aetrix Electronics and suitable for cellular phones, PCMCIA cards, and battery-powered data-acquisition systems requiring stable component supply, RoHS-compliant packaging, and long-term industrial availability.
Supply support for MAX4734EGC+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 industrial, communications, and consumer applications.
The MAX4734EGC+T belongs to Maxim's low-voltage analog switch product line, engineered specifically for ultra-low-power, rail-to-rail signal routing in space- and energy-constrained portable electronics.
FAQ
What is the maximum continuous current rating for MAX4734EGC+T?
The MAX4734EGC+T supports ±150mA continuous current through its COM and NOx terminals. This rating applies across the full operating temperature range (−40°C to +85°C) and is validated with proper PCB thermal design, including connection of the exposed pad to ground. Exceeding this current may cause RON drift or thermal shutdown in sustained operation.
Does MAX4734EGC+T support 1.8V logic inputs when powered from a 1.6V supply?
No - the MAX4734EGC+T's logic inputs are 1.8V CMOS-compatible only when V+ ≥ 2.7V. At V+ = 1.6V, VIH is 1.0V and VIL is 0.4V per the 1.8V-supply electrical characteristics table. Driving A0/A1/EN with 1.8V logic levels at 1.6V V+ risks unreliable switching; level translation is recommended below 2.7V supply.
Can MAX4734EGC+T be used in bidirectional signal paths?
Yes - the MAX4734EGC+T is fully bidirectional: COM and NOx terminals function identically as inputs or outputs. Signal direction is determined by external circuitry, not internal architecture. This enables flexible use in both sensor-to-ADC (COM → NOx) and DAC-to-actuator (NOx → COM) configurations without performance penalty.
What is the purpose of the N.C. pins (pins 2 and 11) on MAX4734EGC+T?
Pins 2 and 11 on the MAX4734EGC+T are No-Connection terminals - they are not bonded internally and serve no electrical function. Per Maxim's layout guidance, these pins should remain unconnected or tied to ground for mechanical stability and EMI reduction. They must never be used as signal or power paths.
How does the break-before-make timing of MAX4734EGC+T affect system reliability?
The MAX4734EGC+T guarantees a minimum 5ns break-before-make interval (tBBM) between channel transitions. This prevents momentary short-circuits during reconfiguration - essential in power-routing applications where cross-conduction could damage downstream regulators or cause system reset. The spec is tested at 25°C and guaranteed by design across temperature.
MAX4734EGC+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 800mOhm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- Voltage - Supply, Single (V+):
- 1.6V ~ 3.6V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 25ns, 20ns
- -3db Bandwidth:
- 90MHz
- Charge Injection:
- 60pC
- Channel Capacitance (CS(off), CD(off)):
- 33pF, 117pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -56dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-QFN (3x3)
MAX4734EGC+T FAQ
1.How can I place an order for MAX4734EGC+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4734EGC+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 MAX4734EGC+T reliable?
The price and inventory of MAX4734EGC+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4734EGC+T is usually 5 days.
3.What payment methods are accepted for MAX4734EGC+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4734EGC+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4734EGC+T?
MAX4734EGC+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4734EGC+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 MAX4734EGC+T?
For technical support, including MAX4734EGC+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4734EGC+T requirements.
6.How does Aetrix verify that MAX4734EGC+T is sourced from the original manufacturer or authorized distributors?
All MAX4734EGC+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 MAX4734EGC+T meets industry standards.
7.What is the process for return or replacement of MAX4734EGC+T?
All MAX4734EGC+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4734EGC+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 MAX4734EGC+T part is unused and in its original packaging.
Return procedure for MAX4734EGC+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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