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Analog Devices Inc./Maxim Integrated MAX4734ETC+
- Part No.:
- MAX4734ETC+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFQFN Exposed Pad
- Datasheet:
-
MAX4734ETC+.pdf
- Description:
- IC SWITCH SP4TX1 800MOHM 12TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,803
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Product details
Overview
MAX4734ETC+ from Maxim Integrated is a 4-channel CMOS analog multiplexer with break-before-make switching, operating from a single 1.6V–3.6V supply. It delivers 0.8Ω (max) on-resistance at 3V, 25ns turn-on time, and rail-to-rail signal handling up to ±150mA continuous current-ideal for low-voltage audio routing in portable electronics.
For engineers reviewing the MAX4734ETC+ datasheet, MAX4734ETC+ pinout, MAX4734ETC+ application, or MAX4734ETC+ equivalent, key selection criteria include on-resistance flatness (0.1Ω max), 1.8V logic compatibility at 3V supply, and TQFN-12 package thermal performance (1176mW at +70°C).
Technical Context
The MAX4734ETC+ implements a CMOS transmission-gate architecture with address decoding (A1/A0) and global enable (EN), supporting 4:1 analog signal routing. Its break-before-make timing (5ns min) prevents channel shorting during state transitions, critical for power routing and battery-switching applications.
It features rail-to-rail analog operation (GND to V+), bidirectional signal paths, and logic inputs tolerant up to 3.6V regardless of supply voltage-enabling interoperability with mixed-voltage digital controllers while maintaining sub-1Ω RON stability across temperature and signal range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 0.8Ω max at V+ = 2.7V, enabling <10mV drop at 100mA-critical for precision low-voltage data acquisition. |
| RON Flatness | 0.1Ω max over full analog range (0V to V+), ensuring minimal THD (<0.018%) in audio signal paths. |
| Switching Speed | tON = 25ns / tOFF = 20ns max (RL = 50Ω, CL = 35pF), supporting >90MHz on-channel bandwidth for video routing. |
| Supply Range | 1.6V to 3.6V single supply-supports direct integration with Li-ion (3.0–3.6V) and coin-cell (1.8V) powered systems. |
| Logic Compatibility | 1.8V CMOS input thresholds (VIH = 1.4V, VIL = 0.5V) at 3V supply-interoperable with modern low-voltage microcontrollers. |
| Leakage Current | ±0.002nA typical COM/NO off-leakage-preserves signal integrity in high-impedance sensor front-ends. |
| Package | 12-pin TQFN (3mm × 3mm, 0.5mm pitch) with exposed pad-optimized for thermal dissipation (14.7mW/°C derating) in compact layouts. |
Pinout & Package
MAX4734ETC+ uses a 12-pin TQFN (3mm × 3mm) package with exposed thermal pad (EP) tied to GND. Pin 1 is A0; pins 5 and 11 are no-connect (N.C.); EP must be soldered to PCB ground plane for thermal and EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 (Pin 12) | Address Input 0 | Selects one of four analog channels (00, 01, 10, 11) with EN active; TTL/CMOS compatible. |
| A1 (Pin 10) | Address Input 1 | MSB of 2-bit channel select; referenced to GND, immune to supply ripple when decoupled. |
| COM (Pin 8) | Common Analog Terminal | Bidirectional path shared across all switches; handles ±150mA continuous, supports rail-to-rail signals. |
| NO1–NO4 (Pins 1, 3, 7, 9) | Normally Open Switch Terminals | Four independent analog outputs; each isolated >56dB from others at 1MHz-minimizes crosstalk in multi-signal systems. |
| EN (Pin 4) | Enable Input | Active-high global control; disables all switches when low, reducing supply current to <1µA for power gating. |
| V+ (Pin 6) | Positive Supply | Single 1.6–3.6V rail; requires 0.1µF ceramic bypass capacitor placed within 2mm for stable high-speed switching. |
| GND (Pin 3) | Ground Reference | Return path for analog and digital domains; must connect directly to EP for optimal noise rejection. |
Key Features
| Feature | Design Value |
|---|---|
| 0.8Ω max RON at 3V | Enables high-fidelity analog routing without gain error or distortion in battery-powered audio codecs. |
| Break-before-make (5ns min) | Prevents momentary short-circuits between channels-essential for safe power path switching in USB-C PD designs. |
| 0.1Ω RON flatness | Maintains consistent gain and linearity across full signal swing (0V to V+), critical for medical sensor interfaces. |
| 1.8V logic compatible at 3V supply | Eliminates level-shifting circuitry when interfacing with 1.8V FPGAs or microcontrollers-reducing BOM count. |
| 1176mW power dissipation (TQFN) | Supports sustained 150mA switching without thermal shutdown in space-constrained handheld devices. |
Applications
| Audio Signal Routing | Low-Voltage Data Acquisition |
|---|---|
|
Use Scenario: Multiplexing microphone inputs and headphone outputs in smartphones and wireless earbuds. IC Role / Device Role / Timing Role: 4:1 analog switch managing bidirectional audio paths with <25ns switching latency. Use Value: 0.8Ω RON and 0.1Ω flatness preserve SNR >95dB; 1.8V logic compatibility simplifies baseband processor interface. |
Use Scenario: Selecting sensor channels (thermocouple, RTD, strain gauge) in portable diagnostic equipment. IC Role / Device Role / Timing Role: Precision analog multiplexer routing high-impedance signals to ADC input with minimal offset drift. Use Value: ±0.002nA leakage and rail-to-rail operation ensure <0.01% measurement error across -40°C to +85°C. |
| Power Path Management | Communications Circuit Switching |
|
Use Scenario: Dynamic selection between primary and backup battery sources in IoT edge nodes. IC Role / Device Role / Timing Role: High-current analog switch enabling/disabling power rails with break-before-make safety. Use Value: ±150mA continuous rating and 0.8Ω RON limit voltage drop to <120mV-maintaining system brown-out margin. |
Use Scenario: Reconfiguring RF front-end signal paths in cellular modems and Wi-Fi 6 clients. IC Role / Device Role / Timing Role: Low-capacitance (33pF NO_ off-capacitance) analog switch isolating antenna ports during band switching. Use Value: -56dB off-isolation at 1MHz and 90MHz bandwidth prevent inter-band interference in multi-RF designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG734BRUZ | 4-channel, 0.9Ω RON (3V), 16-pin TSSOP, no break-before-make guarantee | Higher pin count, larger footprint; lacks BBM timing spec-requires external control sequencing | Choose for legacy TSSOP layout compatibility where BBM is managed externally. |
| TMUX1574RSVR | 4-channel, 0.5Ω RON (3V), 16-pin WQFN, 1.08V–3.6V supply, integrated charge pump | Lower RON but higher quiescent current (1.5µA vs. 0.004µA); supports ultra-low 1.08V operation | Choose when sub-0.6Ω RON is mandatory and 3.6V supply allows charge-pump overhead. |
Compared with ADG734BRUZ and TMUX1574RSVR, the MAX4734ETC+ uniquely balances ultra-low RON flatness (0.1Ω), guaranteed break-before-make, and nanoamp quiescent current-making it optimal for battery-critical, high-fidelity analog routing where timing safety and signal fidelity are co-prioritized.
Availability
MAX4734ETC+ is available at Aetrix Electronics and suitable for audio signal routing, low-voltage data-acquisition systems, and power path management requiring stable component supply across industrial and consumer production cycles.
Supply support for MAX4734ETC+ 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, automotive, and communications applications.
The MAX4734ETC+ belongs to Maxim's low-voltage analog switch family, engineered specifically for rail-to-rail signal integrity and ultra-low power consumption in portable and battery-operated systems.
FAQ
What is the maximum continuous current rating for MAX4734ETC+?
The MAX4734ETC+ supports ±150mA continuous current through its COM and NO terminals. This rating applies across the full operating temperature range (-40°C to +85°C) and enables robust power routing and sensor signal switching without thermal derating in standard PCB layouts with proper grounding.
Does MAX4734ETC+ require external level shifters when interfaced with 1.8V logic?
No, MAX4734ETC+ does not require external level shifters. Its digital inputs (A0, A1, EN) are 1.8V CMOS-compatible when operated from a 3V supply, with VIH = 1.4V and VIL = 0.5V-ensuring reliable logic recognition from 1.8V microcontrollers without added components.
How does the break-before-make feature function in MAX4734ETC+?
The MAX4734ETC+ guarantees a minimum 5ns break interval between channel deactivation and activation (tBBM), preventing momentary shorts during address changes. This is implemented in silicon-not software-and ensures safe power path reconfiguration in battery management and USB-C applications.
What is the thermal performance of the TQFN package used by MAX4734ETC+?
The MAX4734ETC+ TQFN package provides 1176mW continuous power dissipation at +70°C ambient, with 14.7mW/°C derating above that temperature. The exposed pad (EP) must be soldered to a solid ground plane to achieve this rating-enabling sustained 150mA switching in compact handheld designs.
Can MAX4734ETC+ handle analog signals beyond the supply rails?
No, MAX4734ETC+ is rated for rail-to-rail analog signals only (0V to V+). Signals exceeding V+ or dropping below GND are clamped by internal diodes; forward current must be limited to ±20mA on non-switch pins and ±150mA on COM/NO pins to avoid damage per Absolute Maximum Ratings.
MAX4734ETC+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- 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-TQFN (3x3)
MAX4734ETC+ FAQ
1.How can I place an order for MAX4734ETC+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4734ETC+ 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 MAX4734ETC+ reliable?
The price and inventory of MAX4734ETC+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4734ETC+ is usually 5 days.
3.What payment methods are accepted for MAX4734ETC+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4734ETC+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4734ETC+?
MAX4734ETC+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4734ETC+ 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 MAX4734ETC+?
For technical support, including MAX4734ETC+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4734ETC+ requirements.
6.How does Aetrix verify that MAX4734ETC+ is sourced from the original manufacturer or authorized distributors?
All MAX4734ETC+ 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 MAX4734ETC+ meets industry standards.
7.What is the process for return or replacement of MAX4734ETC+?
All MAX4734ETC+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4734ETC+, 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 MAX4734ETC+ part is unused and in its original packaging.
Return procedure for MAX4734ETC+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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