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Analog Devices Inc./Maxim Integrated MAX4734EGC+
- Part No.:
- MAX4734EGC+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-VFQFN Exposed Pad
- Datasheet:
-
MAX4734EGC+.pdf
- Description:
- IC SWITCH SP4T X 1 800MOHM 12QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,179
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Product details
Overview
MAX4734EGC+ 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 1.6V to 3.6V. It features break-before-make switching, 1.8V CMOS logic compatibility, and supports high-fidelity audio routing in portable electronics.
For engineers reviewing the MAX4734EGC+ datasheet, MAX4734EGC+ pinout, MAX4734EGC+ application, or MAX4734EGC+ equivalent, this device is selected for low-power, high-speed analog signal routing where minimal RON flatness (0.1Ω max), ultra-low leakage (±2nA COM on-leakage), and compact TQFN packaging are critical.
Technical Context
The MAX4734EGC+ implements a CMOS transmission-gate architecture enabling bidirectional analog signal flow between COM and any of four NO terminals. Its digital control uses two address bits (A0/A1) and an active-high enable (EN), supporting discrete channel selection without internal decoding logic.
Break-before-make timing (5ns typical) prevents momentary shorting during channel transitions, while charge injection (60pC typical at 3V) and low off-capacitance (33pF NO_, 117pF COM) preserve signal integrity in high-frequency audio and data-acquisition paths up to 90MHz bandwidth.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 0.8Ω max at V+ = 2.7V - enables ≤150mA continuous current with <120mV drop at full load |
| RON Flatness | 0.1Ω max - ensures consistent gain/attenuation across 0–3V analog input range |
| Turn-On/Off Time | tON = 25ns, tOFF = 20ns max - supports >10MHz switching in sampled-data systems |
| Analog Signal Range | 0V to V+ - passes rail-to-rail signals without clipping in single-supply 3V systems |
| Logic Compatibility | 1.8V CMOS inputs at 3V supply - interfaces directly with modern low-voltage microcontrollers |
| Off-Isolation | −56dB at 1MHz - suppresses crosstalk between active and inactive channels in multi-source routing |
| Supply Voltage Range | 1.6V to 3.6V - operates across Li-ion battery discharge curve (3.6V → 2.8V) without level shifting |
Pinout & Package
The MAX4734EGC+ is housed in a 12-pin TQFN package (3mm × 3mm, 0.5mm pitch) with exposed pad for thermal enhancement. Pin 12 is A0, Pin 11 is N.C., Pin 10 is A1, Pin 9 is NO2, Pin 8 is COM, Pin 7 is NO4, Pin 4 is EN, Pin 5 is N.C., Pin 6 is V+, Pin 1 is NO1, Pin 2 is GND, Pin 3 is NO3. Exposed pad (EP) must be connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1 | Binary address inputs | Select one of four NOx channels to connect to COM; no internal decoder required |
| COM | Analog common terminal | Bidirectional node shared across all four switch paths; handles ±150mA continuous |
| NO1–NO4 | Normally open analog terminals | Four independent analog inputs/outputs; each isolated when unselected (117pF off-cap) |
| EN | Active-high enable | Disables all switches when low; eliminates supply current (<1µA) in standby mode |
| V+ | Positive supply | Single 1.6–3.6V rail powers analog and logic sections; bypass with 0.1µF to GND |
| GND | Ground reference | Common return for analog signals, logic, and thermal pad; critical for THD <0.018% |
Key Features
| Feature | Design Value |
|---|---|
| 0.8Ω max RON at 3V | Minimizes insertion loss and self-heating in battery-powered audio paths |
| 0.1Ω RON flatness | Maintains linearity for precision sensor multiplexing across full signal swing |
| 25ns switching speed | Enables time-division multiplexing in >10MSPS data acquisition systems |
| −56dB off-isolation | Prevents audible crosstalk in stereo headphone switching applications |
| 1.8V logic compatible | Eliminates external level shifters when interfacing with 1.8V FPGA I/O banks |
| Break-before-make | Guarantees no transient shorting during channel changes in power routing |
Applications
| Audio Signal Routing | Battery-Powered Data Acquisition |
|---|---|
Use Scenario: Switching between multiple microphone inputs or headphone outputs in smartphones and wearables. IC Role / Device Role / Timing Role: Analog multiplexer routing bidirectional audio paths with minimal distortion and crosstalk. Use Value: 0.018% THD and −56dB isolation preserve signal fidelity; 0.8Ω RON avoids volume attenuation in line-level paths. |
Use Scenario: Scanning thermistor, RTD, or potentiometer sensors in portable medical monitors or IoT edge nodes. IC Role / Device Role / Timing Role: Low-leakage (±2nA COM on-leakage), rail-to-rail analog switch enabling precise ratiometric measurements. Use Value: 0.1Ω RON flatness ensures consistent gain across temperature ranges; 1.6V operation extends runtime on coin-cell batteries. |
| PCMCIA/CompactFlash Interface | Cellular Baseband Signal Switching |
Use Scenario: Managing analog signal paths (audio codec, modem interface) in legacy PCMCIA cards and industrial modems. IC Role / Device Role / Timing Role: High-current (150mA) analog switch supporting hot-plug detection and signal reconfiguration. Use Value: Break-before-make prevents bus contention; 3.6V absolute max rating tolerates transient overvoltage during card insertion. |
Use Scenario: Routing RF front-end calibration signals or baseband I/Q paths in LTE/5G handset transceivers. IC Role / Device Role / Timing Role: Low-capacitance (33pF NOOFF) analog switch minimizing loading on sensitive RF matching networks. Use Value: 90MHz −3dB bandwidth supports wideband calibration tones; 60pC charge injection avoids DC offset in DC-coupled paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMUX1308PWR | 8-channel, 4.5Ω RON (5V), 1.8V logic compatible, 16-pin TSSOP | Higher channel count but higher RON and larger footprint; requires 5V supply | Choose when expanding beyond 4 channels and 5V system voltage is available |
| ADG732BRUZ | 32-channel, 4Ω RON (3V), SPI interface, 32-pin TQFP | Serial control vs. parallel address; higher integration but slower (100ns tON) and higher power | Choose for dense BOMs needing software-configurable routing, not hardware-addressed speed |
Compared with TMUX1308PWR and ADG732BRUZ, the MAX4734EGC+ delivers superior RON (0.8Ω vs. ≥4Ω), faster switching (25ns vs. ≥100ns), and smaller 3×3mm TQFN footprint-making it optimal for space-constrained, low-distortion, high-speed analog routing where parallel addressing suffices.
Availability
MAX4734EGC+ is available at Aetrix Electronics and suitable for audio signal routing, battery-powered data-acquisition systems, and cellular baseband signal switching requiring stable component supply, RoHS-compliant packaging, and guaranteed -40°C to +85°C operation.
Supply support for MAX4734EGC+ 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, automotive, communications, and consumer applications.
The MAX4734EGC+ belongs to Maxim's high-performance analog switch family, engineered specifically for low-voltage, low-distortion signal routing in portable and battery-operated equipment where RON, speed, and size are critical.
FAQ
What is the maximum continuous current rating for the MAX4734EGC+?
The MAX4734EGC+ 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 under conditions where V+ is 2.7V to 3.6V. Exceeding this current may increase on-resistance drift or thermal stress, especially in the 3mm × 3mm TQFN package where thermal dissipation is limited to 1176mW at +70°C ambient.
Does the MAX4734EGC+ support rail-to-rail analog signal operation?
Yes, the MAX4734EGC+ supports rail-to-rail analog signal operation from 0V to V+. When powered from a 3V supply, it passes signals spanning the full 0–3V range with only 0.1Ω max RON flatness-ensuring minimal gain variation. Internal ESD protection diodes clamp signals exceeding V+ or GND, but forward current must remain within ±150mA to avoid damage.
What logic voltage levels are compatible with the MAX4734EGC+ address and enable pins?
The MAX4734EGC+ A0, A1, and EN inputs are 1.8V CMOS-compatible when operated from a 3V supply (VIH = 1.4V min, VIL = 0.5V max). Critically, these inputs tolerate up to 3.6V regardless of V+, allowing direct interfacing with 3.3V or 1.8V controllers without level shifters. Input leakage remains below ±1µA across temperature, minimizing control-line loading.
How does the break-before-make feature function in the MAX4734EGC+?
The MAX4734EGC+ guarantees break-before-make switching with a typical interval of 5ns and maximum of 1ns across temperature. During address changes, all switches disconnect from COM before any new NOx path connects-preventing momentary shorts between channels. This behavior is inherent to the CMOS gate design and requires no external timing control, making it reliable for power routing and signal isolation tasks.
What is the typical charge injection value for the MAX4734EGC+, and how does it affect precision applications?
The MAX4734EGC+ exhibits 60pC typical charge injection at V+ = 3.0V, measured when switching a grounded 1nF capacitor. In precision DC-coupled applications-such as sensor multiplexing-this can induce offset errors. For example, with a 10kΩ source impedance, 60pC yields ~6mV glitch. Mitigation includes using AC-coupling, adding small series resistance, or selecting sampling windows after settling (typically <100ns).
MAX4734EGC+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- 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+ FAQ
1.How can I place an order for MAX4734EGC+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4734EGC+ 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+ reliable?
The price and inventory of MAX4734EGC+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4734EGC+ is usually 5 days.
3.What payment methods are accepted for MAX4734EGC+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4734EGC+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4734EGC+?
MAX4734EGC+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4734EGC+ 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+?
For technical support, including MAX4734EGC+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4734EGC+ requirements.
6.How does Aetrix verify that MAX4734EGC+ is sourced from the original manufacturer or authorized distributors?
All MAX4734EGC+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX4734EGC+?
All MAX4734EGC+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4734EGC+, 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+ part is unused and in its original packaging.
Return procedure for MAX4734EGC+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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