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Analog Devices Inc./Maxim Integrated MAX4704ETC+
- Part No.:
- MAX4704ETC+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFQFN Exposed Pad
- Datasheet:
-
MAX4704ETC+.pdf
- Description:
- IC SWITCH SP4T X 1 60OHM 12TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,697
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Product details
Overview
MAX4704ETC+ from Maxim Integrated is a low-voltage, 4:1 analog multiplexer IC operating from a single +1.8V to +5.5V supply, featuring 60Ω (max) on-resistance at +2.7V, 60ns turn-on time, and break-before-make switching. It routes audio/video signals in battery-powered portable devices with rail-to-rail signal handling and <200MHz -3dB bandwidth.
For engineers reviewing the MAX4704ETC+ datasheet, MAX4704ETC+ pinout, MAX4704ETC+ application, or MAX4704ETC+ equivalent, key selection criteria include guaranteed RON matching (≤3Ω), low charge injection (3pC), high off-isolation (-85dB @1MHz), and +1.8V logic compatibility for ultra-low-power system integration.
Technical Context
The MAX4704ETC+ implements a CMOS-based 4-channel analog switch matrix controlled by dual address bits (ADDA/ADDB) and an active-low inhibit (INH) input. Its break-before-make architecture prevents signal shorting during channel transitions, with tBBM ≤2ns confirmed across temperature and supply voltage.
It supports bidirectional signal routing between COM and any of four NO terminals, with rail-to-rail analog voltage range (0V to V+), guaranteed RON flatness (≤5Ω), and low crosstalk (-90dB @1MHz) - enabling high-fidelity audio and video path selection without distortion or coupling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.8V to +5.5V single supply - enables direct interface with Li-ion battery systems and 3.3V/5V logic domains. |
| On-Resistance (RON) | 60Ω max at +2.7V, 40Ω max at +5V - ensures minimal signal attenuation and gain error in precision data-acquisition paths. |
| RON Matching | ≤3Ω max between channels - guarantees consistent gain and phase response when switching between sensor inputs or signal sources. |
| Switching Time (tON/tOFF) | 60ns / 20ns at +3V - supports high-speed multiplexing in real-time audio sampling and communication channel arbitration. |
| Off-Isolation & Crosstalk | -85dB off-isolation and -90dB crosstalk at 1MHz - suppresses interference between active and inactive signal paths in dense PCB layouts. |
| Charge Injection | 3pC max - minimizes voltage glitch on sampled-hold capacitors, critical for ADC front-end accuracy. |
| THD | 0.02% at 20Hz–20kHz - preserves audio fidelity in portable media players and headset switching applications. |
Pinout & Package
The MAX4704ETC+ is packaged in a 12-pin QFN-EP (3mm × 3mm) with exposed thermal pad. Pin 1 is V+, pins 2 and 8 are no-connect (N.C.), and the exposed pad is internally connected to GND for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply input | Accepts +1.8V to +5.5V; powers internal CMOS switches and logic; must be applied before analog signals. |
| GND | Ground reference | Return path for analog and digital currents; exposed pad must connect to large ground plane for thermal performance. |
| COM | Common analog terminal | Bidirectional node shared across all four switched paths; connects to ADC input, codec line, or signal processor. |
| NO0–NO3 | Normally-open analog inputs/outputs | Four independent signal paths; selected via ADDA/ADDB; support rail-to-rail voltage swing (0V to V+). |
| ADDA / ADDB | Binary address inputs | 2-bit control bus selecting one of four NOx paths to COM; +1.8V logic compatible at +2.7V–+3.3V supply. |
| INH | Inhibit enable | Active-low global disable; pulls all switches open when high; allows fast channel blanking or power-gating. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog voltages from GND to V+ without clipping - essential for full-scale battery-powered sensor interfaces. |
| Guaranteed RON flatness | ≤5Ω variation over full signal range - maintains linear gain and low harmonic distortion across input amplitude. |
| Low leakage current | ≤5nA COM on-leakage at +85°C - prevents DC offset drift in high-impedance medical or instrumentation front-ends. |
| High-frequency bandwidth | >200MHz -3dB bandwidth - enables clean switching of composite video, USB 1.1, or baseband RF signals. |
| Break-before-make timing | tBBM ≤2ns - eliminates momentary short-circuits between channels during address transitions, protecting sensitive sources. |
Applications
| MP3 Player Signal Routing | Battery-Powered Data Acquisition |
|---|---|
|
Use Scenario: Switching between stereo headphone outputs, line-in jacks, and microphone inputs in portable audio devices. IC Role / Device Role / Timing Role: 4:1 analog multiplexer managing bidirectional audio paths under microcontroller GPIO control. Use Value: Enables compact, low-power audio subsystems with THD <0.02% and rail-to-rail operation from single Li-ion cell. |
Use Scenario: Multiplexing multiple sensor outputs (thermocouple, RTD, strain gauge) into a single ADC channel. IC Role / Device Role / Timing Role: Precision analog switch providing matched RON (≤3Ω) and low charge injection (3pC) for accurate multi-channel sampling. Use Value: Eliminates gain mismatch and sampling glitches, improving effective resolution and reducing calibration overhead. |
| Cellular Phone Audio Path | PCMCIA Card Interface |
|
Use Scenario: Dynamic reconfiguration of earpiece, speakerphone, Bluetooth headset, and USB-C audio paths in smartphones. IC Role / Device Role / Timing Role: Low-voltage analog switch with +1.8V logic compatibility, enabling direct connection to AP GPIOs without level shifters. Use Value: Reduces BOM count and PCB area while maintaining -90dB crosstalk to prevent voice/audio leakage between modes. |
Use Scenario: Selecting between modem, fax, or LAN functions on legacy PCMCIA cards with shared analog I/O pins. IC Role / Device Role / Timing Role: High-isolation (–85dB) 4:1 mux isolating conflicting analog functions on hot-pluggable expansion modules. Use Value: Prevents signal contention and ESD coupling between co-located circuits, meeting PCMCIA mechanical and electrical specs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4703ETC+ | 3-channel (3:1) variant with identical RON, timing, and package - lacks NO3 pin and ADDB input. | Suitable only where exactly three analog sources require multiplexing; not pin-compatible due to reduced pin count. | Select MAX4703ETC+ only if system design requires exactly three inputs and board layout accommodates different pinout. |
| TMUX1104DCNR | 4:1 mux with 1.8V–5.5V supply, but higher RON (100Ω typ), no guaranteed RON matching, and no break-before-make guarantee. | Acceptable for non-critical signal routing where cost is prioritized over precision matching and glitch-free switching. | Choose TMUX1104DCNR for cost-sensitive consumer electronics where RON flatness and tBBM are not design-critical. |
Compared with MAX4704ETC+, MAX4703ETC+ reduces channel count but retains identical precision specs, while TMUX1104DCNR trades guaranteed matching and break-before-make for lower unit cost - making MAX4704ETC+ optimal for high-fidelity, multi-source analog systems requiring deterministic switching behavior.
Availability
MAX4704ETC+ is available at Aetrix Electronics and suitable for MP3 players, cellular phones, and low-voltage data-acquisition systems requiring stable component supply, long-term lifecycle support, and traceable sourcing from authorized channels.
Supply support for MAX4704ETC+ 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 MAX4704ETC+ belongs to Maxim's low-voltage analog switch product line, engineered specifically for portable and battery-operated systems requiring rail-to-rail signal integrity, ultra-low power consumption, and guaranteed matching performance.
FAQ
What is the maximum supply voltage rating for the MAX4704ETC+?
The MAX4704ETC+ has an absolute maximum supply voltage (V+) of +6V. Operation above this level risks permanent damage. The device is specified for reliable operation from +1.8V to +5.5V, with on-resistance and timing parameters guaranteed across that full range. Always apply V+ before analog signals to avoid latch-up or overstress conditions.
Does the MAX4704ETC+ support bidirectional signal flow?
Yes, the MAX4704ETC+ supports fully bidirectional analog signal routing. Both the COM and NO0–NO3 terminals can serve as inputs or outputs, enabling flexible use in transceiver interfaces, shared bus architectures, and feedback paths. This capability is inherent to its CMOS switch topology and rail-to-rail voltage handling.
What is the guaranteed on-resistance matching specification for MAX4704ETC+?
The MAX4704ETC+ guarantees on-resistance matching (ΔRON) of ≤3Ω maximum between any two channels when operated at +2.7V supply and +25°C. This parameter is tested and specified across the full industrial temperature range (-40°C to +85°C), ensuring consistent gain and phase response in multi-channel measurement systems.
Can the MAX4704ETC+ operate with 1.8V logic inputs?
Yes, the MAX4704ETC+ digital control inputs (ADDA, ADDB, INH) are +1.8V CMOS logic compatible when powered from a +2.7V to +3.3V supply. VIH is guaranteed ≥+1.4V and VIL ≤+0.5V under those conditions, allowing direct interfacing with 1.8V microcontrollers without level-shifting circuitry.
What is the thermal pad connection requirement for the MAX4704ETC+ QFN package?
The exposed thermal pad (EP) of the MAX4704ETC+ QFN package is internally connected to GND and must be soldered to a large PCB ground plane. This connection is mandatory for thermal performance and electrical stability - it is not optional. Failure to connect the pad may result in excessive junction temperature and degraded RON or timing performance.
MAX4704ETC+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 60Ohm
- Channel-to-Channel Matching (ΔRon):
- 1Ohm
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 60ns, 20ns
- -3db Bandwidth:
- 200MHz
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 7pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -90dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-TQFN (3x3)
MAX4704ETC+ FAQ
1.How can I place an order for MAX4704ETC+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4704ETC+ 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 MAX4704ETC+ reliable?
The price and inventory of MAX4704ETC+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4704ETC+ is usually 5 days.
3.What payment methods are accepted for MAX4704ETC+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4704ETC+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4704ETC+?
MAX4704ETC+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4704ETC+ 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 MAX4704ETC+?
For technical support, including MAX4704ETC+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4704ETC+ requirements.
6.How does Aetrix verify that MAX4704ETC+ is sourced from the original manufacturer or authorized distributors?
All MAX4704ETC+ 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 MAX4704ETC+ meets industry standards.
7.What is the process for return or replacement of MAX4704ETC+?
All MAX4704ETC+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4704ETC+, 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 MAX4704ETC+ part is unused and in its original packaging.
Return procedure for MAX4704ETC+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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